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Measurement of f₁(1285) production in pp collisions at s = 13 TeV

Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics 2025年 866卷

作者： Acharya, S. Agarwal, A. Aglieri rinella, G. Aglietta, L. Agnello, M. Agrawal, N. Ahammed, Z. Ahmad, S. Ahn, S.U. Ahuja, I. Akindinov, A. Akishina, V. Al-Turany, M. Aleksandrov, d. Alessandro, B. Alfanda, H.M. Alfaro Molina, r. Ali, B. Alici, A. Alizadehvandchali, N. Alkin, A. Alme, J. Alocco, G. Alt, T. Altamura, A.r. Altsybeev, I. Alvarado, J.r. Alvarez, C.O.r. Anaam, M.N. Andrei, C. Andreou, N. Andronic, A. Andronov, E. Anguelov, V. Antinori, F. Antonioli, P. Apadula, N. Aphecetche, L. Appelshäuser, H. Arata, C. Arcelli, S. Arnaldi, r. Arneiro, J.G.M.C.A. Arsene, I.C. Arslandok, M. Augustinus, A. Averbeck, r. Averyanov, d. Azmi, M.d. Baba, H. Badalà, A. Bae, J. Baek, Y.W. Bai, X. Bailhache, r. Bailung, Y. Bala, r. Balbino, A. Baldisseri, A. Balis, B. Banoo, Z. Barbasova, V. Barile, F. Barioglio, L. Barlou, M. Barman, B. Barnaföldi, G.G. Barnby, L.S. Barreau, E. Barret, V. Barreto, L. Bartels, C. Barth, K. Bartsch, E. Bastid, N. Basu, S. Batigne, G. Battistini, d. Batyunya, B. Bauri, d. Bazo Alba, J.L. Bearden, I.G. Beattie, C. Becht, P. Behera, d. Belikov, I. Bell Hechavarria, A.d.C. Bellini, F. Bellwied, r. Belokurova, S. Beltran, L.G.E. Beltran, Y.A.V. Bencedi, G. Bensaoula, A. Beole, S. Berdnikov, Y. Berdnikova, A. Bergmann, L. Besoiu, M.G. Betev, L. Bhaduri, P.P. Bhasin, A. Bhattacharjee, B. Bianchi, L. Bielčík, J. Bielčíková, J. Bigot, A.P. Bilandzic, A. Biro, G. Biswas, S. Bize, N. Blair, J.T. Blau, d. Blidaru, M.B. Bluhme, N. Blume, C. Boca, G. Bock, F. Bodova, T. Bok, J. Boldizsár, L. Bombara, M. Bond, P.M. Bonomi, G. Borel, H. Borissov, A. Borquez Carcamo, A.G. Botta, E. Bouziani, Y.E.M. Bratrud, L. Braun-Munzinger, P. Bregant, M. Broz, M. Bruno, G.E. Buchakchiev, V.d. Buckland, M.d. Budnikov, d. Buesching, H. Bufalino, S. Buhler, P. Burmasov, N. Buthelezi, Z. Bylinkin, A. Bysiak, S.A. Cabanillas Noris, J.C. Cabrera, M.F.T. Cai, M. Caines, H. Caliva, A. Calvo Villar, E. Camacho, J.M.M. Camerini, P. Canedo, F.d.M. Cantway, S.L. Carabas, M. Carballo, A.A. Carnesecchi, F. Caron, r. Carvalho, L.A.d. Castil A.I. Alikhanyan National Science Laboratory (Yerevan Physics Institute) Foundation Yerevan Armenia AGH University of Krakow Cracow Poland Bogolyubov Institute for Theoretical Physics National Academy of Sciences of Ukraine Kiev Ukraine Bose Institute Department of Physics Centre for Astroparticle Physics and Space Science (CAPSS) Kolkata India California Polytechnic State University San Luis Obispo CA United States Central China Normal University Wuhan China Centro de Aplicaciones Tecnológicas y Desarrollo Nuclear (CEADEN) Havana Cuba Centro de Investigación y de Estudios Avanzados (CINVESTAV) Mexico City and Mérida Mexico Chicago State University Chicago IL United States China Institute of Atomic Energy Beijing China China University of Geosciences Wuhan China Chungbuk National University Cheongju South Korea Comenius University Bratislava Faculty of Mathematics Physics and Informatics Bratislava Slovakia Creighton University Omaha NE United States Department of Physics Aligarh Muslim University Aligarh India Department of Physics Pusan National University Pusan South Korea Department of Physics Sejong University Seoul South Korea Department of Physics University of California Berkeley CA United States Department of Physics University of Oslo Oslo Norway Department of Physics and Technology University of Bergen Bergen Norway Dipartimento di Fisica Università di Pavia Pavia Italy Dipartimento di Fisica dell'Università Sezione INFN Cagliari Italy Dipartimento di Fisica dell'Università Sezione INFN Trieste Italy Dipartimento di Fisica dell'Università Sezione INFN Turin Italy Dipartimento di Fisica e Astronomia dell'Università Sezione INFN Bologna Italy Dipartimento di Fisica e Astronomia dell'Università Sezione INFN Catania Italy Dipartimento di Fisica e Astronomia dell'Università Sezione INFN Padova Italy Dipartimento di Fisica ‘E.R. Caianiello’ dell'Università Gruppo Collegato INFN Salerno Italy Dipartimento DISAT del Politecnico Sezi

This study presents the first measurement of the f1(1285) resonance using the ALICE detector in inelastic proton–proton collisions at a center-of-mass energy of 13 TeV. The resonance is reconstructed at midrapidity (...

This study presents the first measurement of the f₁(1285) resonance using the ALICE detector in inelastic proton–proton collisions at a center-of-mass energy of 13 TeV. The resonance is reconstructed at midrapidity (|y|< 0.5) through the hadronic decay channel f₁(1285)→K_S⁰K^±π^∓. Key measurements include the determination of its mass, transverse-momentum integrated yield, and average transverse momentum. Additionally, the ratio of the transverse-momentum integrated yield of f₁(1285) to pion is compared with calculations from the canonical statistical hadronization model. The model calculation, assuming a zero total strangeness content for f₁(1285), reproduces the data within 1σ deviation, shedding light on the quark composition of f₁(1285). © 2025 CErN for the benefit of the ALICE Collaboration

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Hypertriton Production in p-Pb Collisions at sNN=5.02 TeV

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Physical review Letters 2022年第25期128卷 252003-252003页

作者： S. Acharya d. Adamová A. Adler G. Aglieri rinella M. Agnello N. Agrawal Z. Ahammed S. Ahmad S. U. Ahn I. Ahuja Z. Akbar A. Akindinov M. Al-Turany S. N. Alam d. Aleksandrov B. Alessandro H. M. Alfanda r. Alfaro Molina B. Ali Y. Ali A. Alici N. Alizadehvandchali A. Alkin J. Alme T. Alt L. Altenkamper I. Altsybeev M. N. Anaam C. Andrei d. Andreou A. Andronic M. Angeletti V. Anguelov F. Antinori P. Antonioli C. Anuj N. Apadula L. Aphecetche H. Appelshäuser S. Arcelli r. Arnaldi I. C. Arsene M. Arslandok A. Augustinus r. Averbeck S. Aziz M. d. Azmi A. Badalà Y. W. Baek X. Bai r. Bailhache Y. Bailung r. Bala A. Balbino A. Baldisseri B. Balis M. Ball d. Banerjee r. Barbera L. Barioglio M. Barlou G. G. Barnaföldi L. S. Barnby V. Barret C. Bartels K. Barth E. Bartsch F. Baruffaldi N. Bastid S. Basu G. Batigne B. Batyunya d. Bauri J. L. Bazo Alba I. G. Bearden C. Beattie I. Belikov A. d. C. Bell Hechavarria F. Bellini r. Bellwied S. Belokurova V. Belyaev G. Bencedi S. Beole A. Bercuci Y. Berdnikov A. Berdnikova L. Bergmann M. G. Besoiu L. Betev P. P. Bhaduri A. Bhasin I. r. Bhat M. A. Bhat B. Bhattacharjee P. Bhattacharya L. Bianchi N. Bianchi J. Bielčík J. Bielčíková J. Biernat A. Bilandzic G. Biro S. Biswas J. T. Blair d. Blau M. B. Blidaru C. Blume G. Boca F. Bock A. Bogdanov S. Boi J. Bok L. Boldizsár A. Bolozdynya M. Bombara P. M. Bond G. Bonomi H. Borel A. Borissov H. Bossi E. Botta L. Bratrud P. Braun-Munzinger M. Bregant M. Broz G. E. Bruno M. d. Buckland d. Budnikov H. Buesching S. Bufalino O. Bugnon P. Buhler Z. Buthelezi J. B. Butt S. A. Bysiak M. Cai H. Caines A. Caliva E. Calvo Villar J. M. M. Camacho r. S. Camacho P. Camerini F. d. M. Canedo F. Carnesecchi r. Caron J. Castillo Castellanos E. A. r. Casula F. Catalano C. Ceballos Sanchez P. Chakraborty S. Chandra S. Chapeland M. Chartier S. Chattopadhyay A. Chauvin T. G. Chavez T. Cheng C. Cheshkov B. Cheynis V. Chibante Barroso d. d. Chinellato S. Cho P. Chochula P. Christakoglou C. H. Christensen P. Christiansen T. Chujo C. Cicalo L. Cifarelli F. Cindolo M. r Variable Energy Cyclotron Centre Homi Bhabha National Institute Kolkata India Nuclear Physics Institute of the Czech Academy of Sciences Řežu Prahy Czech Republic Johann-Wolfgang-Goethe Universität Frankfurt Institut für Informatik Fachbereich Informatik und Mathematik Frankfurt Germany European Organization for Nuclear Research (CERN) Geneva Switzerland Dipartimento DISAT del Politecnico and Sezione INFN Turin Italy INFN Sezione di Bologna Bologna Italy Department of Physics Aligarh Muslim University Aligarh India Korea Institute of Science and Technology Information Daejeon Republic of Korea Faculty of Science P.J. Šafárik University Košice Slovakia Indonesian Institute of Sciences Jakarta Indonesia NRC «Kurchatov» Institute—ITEP Moscow Russia Research Division and ExtreMe Matter Institute EMMI GSI Helmholtzzentrum für Schwerionenforschung GmbH Darmstadt Germany Fudan University Shanghai China National Research Centre Kurchatov Institute Moscow Russia INFN Sezione di Torino Turin Italy Central China Normal University Wuhan China Instituto de Física Universidad Nacional Autónoma de México Mexico City Mexico COMSATS University Islamabad Islamabad Pakistan Dipartimento di Fisica e Astronomia dell’Università Bologna Italy Sezione INFN Bologna Italy University of Houston Houston Texas USA Department of Physics and Technology University of Bergen Bergen Norway Institut für Kernphysik Johann Wolfgang Goethe-Universität Frankfurt Frankfurt Germany St. Petersburg State University Lima Peru Horia Hulubei National Institute of Physics and Nuclear Engineering Bucharest Romania Nikhef National institute for subatomic physics Amsterdam Netherlands Westfälische Wilhelms-Universität Münster Institut für Kernphysik Münster Germany Physikalisches Institut Ruprecht-Karls-Universität Heidelberg Heidelberg Germany INFN Sezione di Padova Padova Italy Lawrence Berkeley National Laboratory California USA SUBATECH IMT Atlantique Université de Nantes CNRS-IN2P

The study of nuclei and antinuclei production has proven to be a powerful tool to investigate the formation mechanism of loosely bound states in high-energy hadronic collisions. The first measurement of the production of HΛ3 in p-Pb collisions at sNN=5.02 TeV is presented in this Letter. Its production yield measured in the rapidity interval −1r the 40% highest-multiplicity p-Pb collisions is dN/dy=[6.3±1.8(stat)±1.2(syst)]×10−7. The measurement is compared with the expectations of statistical hadronization and coalescence models, which describe the nucleosynthesis in hadronic collisions. These two models predict very different yields of the hypertriton in charged particle multiplicity environments relevant to small collision systems such as p-Pb, and therefore the measurement of dN/dy is crucial to distinguish between them. The precision of this measurement leads to the exclusion with a significance larger than 6.9σ of some configurations of the statistical hadronization model, thus constraining the theory behind the production of loosely bound states at hadron colliders.

关键词： Hadron-hadron interactions

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First polarisation measurement of coherently photoproduced J/ψ in ultra-peripheral Pb–Pb collisions at s_NN=5.02 TeV

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Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics 2025年 865卷

作者： Acharya, S. Adamová, d. Adler, A. Aglieri rinella, G. Agnello, M. Agrawal, N. Ahammed, Z. Ahmad, S. Ahn, S.U. Ahuja, I. Akindinov, A. Al-Turany, M. Aleksandrov, d. Alessandro, B. Alfanda, H.M. Alfaro Molina, r. Ali, B. Alici, A. Alizadehvandchali, N. Alkin, A. Alme, J. Alocco, G. Alt, T. Altsybeev, I. Alvarado, J.r. Anaam, M.N. Andrei, C. Andronic, A. Anguelov, V. Antinori, F. Antonioli, P. Apadula, N. Aphecetche, L. Appelshäuser, H. Arata, C. Arcelli, S. Aresti, M. Arnaldi, r. Arneiro, J.G.M.C.A. Arsene, I.C. Arslandok, M. Augustinus, A. Averbeck, r. Azmi, M.d. Badalà, A. Bae, J. Baek, Y.W. Bai, X. Bailhache, r. Bailung, Y. Balbino, A. Baldisseri, A. Balis, B. Banerjee, d. Banoo, Z. Barbera, r. Barile, F. Barioglio, L. Barlou, M. Barnaföldi, G.G. Barnby, L.S. Barret, V. Barreto, L. Bartels, C. Barth, K. Bartsch, E. Bastid, N. Basu, S. Batigne, G. Battistini, d. Batyunya, B. Bauri, d. Bazo Alba, J.L. Bearden, I.G. Beattie, C. Becht, P. Behera, d. Belikov, I. Bell Hechavarria, A.d.C. Bellini, F. Bellwied, r. Belokurova, S. Belyaev, V. Bencedi, G. Beole, S. Bercuci, A. Berdnikov, Y. Berdnikova, A. Bergmann, L. Besoiu, M.G. Betev, L. Bhaduri, P.P. Bhasin, A. Bhat, M.A. Bhattacharjee, B. Bianchi, L. Bianchi, N. Bielčík, J. Bielčíková, J. Biernat, J. Bigot, A.P. Bilandzic, A. Biro, G. Biswas, S. Bize, N. Blair, J.T. Blau, d. Blidaru, M.B. Bluhme, N. Blume, C. Boca, G. Bock, F. Bodova, T. Bogdanov, A. Boi, S. Bok, J. Boldizsár, L. Bombara, M. Bond, P.M. Bonomi, G. Borel, H. Borissov, A. Borquez Carcamo, A.G. Bossi, H. Botta, E. Bouziani, Y.E.M. Bratrud, L. Braun-Munzinger, P. Bregant, M. Broz, M. Bruno, G.E. Buckland, M.d. Budnikov, d. Buesching, H. Bufalino, S. Buhler, P. Buthelezi, Z. Bylinkin, A. Bysiak, S.A. Cai, M. Caines, H. Caliva, A. Calvo Villar, E. Camacho, J.M.M. Camerini, P. Canedo, F.d.M. Cantway, S.L. Carabas, M. Carballo, A.A. Carnesecchi, F. Caron, r. Carvalho, L.A.d. Castillo Castellanos, J. Catalano, F. Ceballos Sanchez, C. Chakaberia, I. Chakraborty, P. Chandra, S. Chapeland, S. Chartier, M. Chattopa A.I. Alikhanyan National Science Laboratory (Yerevan Physics Institute) Foundation Yerevan Armenia AGH University of Krakow Cracow Poland Bogolyubov Institute for Theoretical Physics National Academy of Sciences of Ukraine Kiev Ukraine Bose Institute Department of Physics Centre for Astroparticle Physics and Space Science (CAPSS) Kolkata India California Polytechnic State University San Luis Obispo CA United States Central China Normal University Wuhan China Centro de Aplicaciones Tecnológicas y Desarrollo Nuclear (CEADEN) Havana Cuba Centro de Investigación y de Estudios Avanzados (CINVESTAV) Mexico City and Mérida Mexico Chicago State University Chicago IL United States China Institute of Atomic Energy Beijing China Chungbuk National University Cheongju South Korea Comenius University Bratislava Faculty of Mathematics Physics and Informatics Bratislava Slovakia COMSATS University Islamabad Islamabad Pakistan Creighton University Omaha NE United States Department of Physics Aligarh Muslim University Aligarh India Department of Physics Pusan National University Pusan South Korea Department of Physics Sejong University Seoul South Korea Department of Physics University of California Berkeley CA United States Department of Physics University of Oslo Oslo Norway Department of Physics and Technology University of Bergen Bergen Norway Dipartimento di Fisica Università di Pavia Pavia Italy Dipartimento di Fisica dell'Università Sezione INFN Cagliari Italy Dipartimento di Fisica dell'Università Sezione INFN Trieste Italy Dipartimento di Fisica dell'Università Sezione INFN Turin Italy Dipartimento di Fisica e Astronomia dell'Università Sezione INFN Bologna Italy Dipartimento di Fisica e Astronomia dell'Università Sezione INFN Catania Italy Dipartimento di Fisica e Astronomia dell'Università Sezione INFN Padova Italy Dipartimento di Fisica ‘E.R. Caianiello’ dell'Università Gruppo Collegato INFN Salerno Italy Dipartimento DISAT del Politecnico

The first measurement of the polarisation of coherently photoproduced J/ψ mesons in ultra-peripheral Pb–Pb collisions, using data at sNN=5.02 TeV, is presented. The J/ψ meson is measured via its dimuon decay channe...

The first measurement of the polarisation of coherently photoproduced J/ψ mesons in ultra-peripheral Pb–Pb collisions, using data at s_NN=5.02 TeV, is presented. The J/ψ meson is measured via its dimuon decay channel in the forward rapidity interval −4.0detector at the CErN LHC. An event sample corresponding to an integrated luminosity of 750 μb⁻¹ ± 5% (syst) is analysed. Hadronic activity is highly suppressed since the interaction is mediated by a photon. The polar and azimuthal angle distributions of the decay muons are measured, and the polarisation parameters λ_θ, λ_φ, λ_θφ are extracted. The analysis is carried out in the helicity frame. The results are found to be consistent with a transversely polarised J/ψ. These values are compared with previous measurements by the H1 and ZEUS experiments. The polarisation parameters of coherent J/ψ photoproduction in Pb–Pb collisions are found to be consistent with the s-channel helicity conservation hypothesis. © 2025 CErN for the benefit of the ALICE Collaboration

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The James Webb Space Telescope Mission

arXiv

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arXiv 2023年

作者： Gardner, Jonathan P. Mather, John C. Abbott, randy Abell, James S. Abernathy, Mark Abney, Faith E. Abraham, John G. Abraham, roberto Abul-Huda, Yasin M. Acton, Scott Adams, Cynthia K. Adams, Evan Adler, david S. Adriaensen, Maarten Aguilar, Jonathan Albert Ahmed, Mansoor Ahmed, Nasif S. Ahmed, Tanjira Albat, rüdeger Albert, Loïc Alberts, Stacey Aldridge, david Allen, Mary Marsha Allen, Shaune S. Altenburg, Martin Altunc, Serhat Alvarez, Jose Lorenzo Álvarez-Márquez, Javier de Oliveira, Catarina Alves Ambrose, Leslie L. Anandakrishnan, Satya M. Andersen, Gregory C. Anderson, Harry James Anderson, Jay Anderson, Kristen Anderson, Sara M. Aprea, Julio Archer, Benita J. Arenberg, Jonathan W. Argyriou, Ioannis Arribas, Santiago Artigau, Étienne Arvai, Amanda rose Atcheson, Paul Atkinson, Charles B. Averbukh, Jesse Aymergen, Cagatay Bacinski, John J. Baggett, Wayne E. Bagnasco, Giorgio Baker, Lynn L. Balzano, Vicki Ann Banks, Kimberly A. Baran, david A. Barker, Elizabeth A. Barrett, Larry K. Barringer, Bruce O. Barto, Allison Bast, William Baudoz, Pierre Baum, Stefi Beatty, Thomas G. Beaulieu, Mathilde Bechtold, Kathryn Beck, Tracy Beddard, Megan M. Beichman, Charles Bellagama, Larry Bely, Pierre Berger, Timothy W. Bergeron, Louis E. darveau-Bernier, Antoine Bertch, Maria d. Beskow, Charlotte Betz, Laura E. Biagetti, Carl P. Birkmann, Stephan Bjorklund, Kurt F. Blackwood, James d. Blazek, ronald Paul Blossfeld, Stephen Bluth, Marcel Boccaletti, Anthony Boegner, Martin E. Bohlin, ralph C. Boia, John Joseph Böker, Torsten Bonaventura, N. Bond, Nicholas A. Bosley, Kari Ann Boucarut, rene A. Bouchet, Patrice Bouwman, Jeroen Bower, Gary Bowers, Ariel S. Bowers, Charles W. Boyce, Leslye A. Boyer, Christine T. Boyer, Martha L. Boyer, Michael Boyer, robert Bradley, Larry d. Brady, Gregory r. Brandl, Bernhard r. Brannen, Judith L. Breda, david Bremmer, Harold G. Brennan, david Bresnahan, Pamela A. Bright, Stacey N. Broiles, Brian J. Bromenschenkel, Asa Brooks, Brian H. Brooks, Keira J. Brown, Bob Brown, Bruce Brown, Thomas M. Br NASA Goddard Space Flight Center 8800 Greenbelt Rd GreenbeltMD20771 United States Ball Aerospace & Technologies Corp. 1600 Commerce Street BoulderCO80301 United States Space Telescope Science Institute 3700 San Martin Drive BaltimoreMD21218 United States Department of Astronomy & Astrophysics University of Toronto 50 St. George Street TorontoONM5S 3H4 Canada Dunlap Institute for Astronomy and Astrophysics University of Toronto 50 St George Street TorontoONM5S 3H4 Canada European Space Agency HQ Daumesnil 52 rue Jacques Hillairet Paris75012 France Université de Montréal Département de Physique C.P. 6128 Succ. Centre-ville MontréalQCH3C 3J7 Canada Steward Observatory University of Arizona 933 N. Cherry Ave TucsonAZ85721 United States Honeywell Aerospace #100 303 Terry Fox Drive OttawaONK2K 3J1 Canada Airbus Defence and Space GmbH Ottobrunn Germany European Space Agency European Research & Technology Centre Keplerlaan 1 Postbus 299 Noordwijk2200 AG Netherlands Carretera de Ajalvir Torrejón de Ardoz MadridE-28850 Spain European Space Agency European Space Astronomy Centre Camino bajo del Castillo s/n Urbanización Villafranca del Castillo Villanueva de la Cañada Madrid28692 Spain Northrop Grumman One Space Park Redondo BeachCA90278 United States Instituut voor Sterrenkunde KU Leuven Celestijnenlaan 200D Bus-2410 Leuven3000 Belgium LESIA Observatoire de Paris Université PSL CNRS Sorbonne Université Université de Paris 5 place Jules Janssen Meudon92195 France Faculty of Science University of Manitoba 230 Machray Hall 186 Dysart Road WinnipegMBR3T 2N2 Canada Department of Astronomy University of Wisconsin Madison MadisonWI53706 United States Université Côte d’Azur Observatoire de la Côte d’Azur CNRS Laboratoire Lagrange NiceF-06108 France NASA Exoplanet Science Institute IPAC Jet Propulsion Laboratory California Institute of Technology 1200 E California Blvd PasadenaCA91125 United States European Space

Twenty-six years ago a small committee report, building on earlier studies, expounded a compelling and poetic vision for the future of astronomy, calling for an infrared-optimized space telescope with an aperture of at least 4m. With the support of their governments in the US, Europe, and Canada, 20,000 people realized that vision as the 6.5m James Webb Space Telescope. A generation of astronomers will celebrate their accomplishments for the life of the mission, potentially as long as 20 years, and beyond. This report and the scientific discoveries that follow are extended thank-you notes to the 20,000 team members. The telescope is working perfectly, with much better image quality than expected. In this and accompanying papers, we give a brief history, describe the observatory, outline its objectives and current observing program, and discuss the inventions and people who made it possible. We cite detailed reports on the design and the measured performance on orbit. © 2023, CC BY.

关键词： Space telescopes

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Galactic transient sources with the Cherenkov Telescope Array Observatory

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Monthly Notices of the royal Astronomical Society 2025年第1期540卷 205–238页

作者： Abe, K Abe, S Abhir, J Abhishek, A Acero, F Acharyya, A Adam, r Aguasca-Cabot, A Agudo, I Aguirre-Santaella, A Alfaro, J Alfaro, r Alvarez-Crespo, N Alves Batista, r Amans, J-P Amato, E Ambrosi, G Ambrosino, F Angüner, E O Antonelli, L A Aramo, C Arcaro, C Arnesen, T T H Asano, K Ascasibar, Y Aschersleben, J Ashkar, H Augusto Stuani, L Baack, d Backes, M Balazs, C Balbo, M Baquero Larriva, A Barbosa Martins, V Barres de Almeida, U Barrio, J A Barrios-Jiménez, L Batković, I Batzofin, r Baxter, J Becerra González, J Becker Tjus, J Belmont, r Benbow, W Bernete, J Bernlöhr, K Berti, A Bertucci, B Beshley, V Bhattacharjee, P Bhattacharyya, S Bigongiari, C Bissaldi, E Blanch, O Blazek, J Bocchino, F Boisson, C Bolmont, J Bonnoli, G Bonollo, A Bordas, P Bosnjak, Z Bottacini, E Böttcher, M Bradascio, F Bronzini, E Brown, A M Brunelli, G Bulgarelli, A Burelli, I Burger-Scheidlin, C Burmistrov, L Burton, M Buscemi, M Cailleux, J Campoy-Ordaz, A Cantlay, B K Capasso, G Caproni, A Capuzzo-dolcetta, r Caraveo, P Caroff, S Carosi, A Carosi, r Carquin, E Carrasco, M-S Cascone, E Cassol, F Castaldini, L Castrejon, N Castro-Tirado, A J Cerasole, d Ceribella, G Cerruti, M Chadwick, P M Chaty, S Chen, A W Chernyakova, M Chiavassa, A Chudoba, J Chytka, L Cicciari, G M Cifuentes, A Coimbra Araujo, C H Colapietro, M Conforti, V Contreras, J L Cortina, J Costa, A Costantini, H Cotter, G Cristofari, P Cuevas, O Curtis-Ginsberg, Z d’Aì, A d’Amico, G d’Ammando, F dai, S dazzi, F de Bony de Lavergne, M de Caprio, V de Cesare, G de Frondat Laadim, F de Gouveia dal Pino, E M de Lotto, B de Lucia, M de Martino, d de Menezes, r de Naurois, M de Ona Wilhelmi, E de Souza, V del Peral, L del Valle, M V delgado, C dell’aiera, M della Valle, M della Volpe, d depaoli, d devin, J di Girolamo, T di Piano, A di Pierro, F di Tria, r di Venere, L diebold, S dignam, C dima, r dinesh, A djuvsland, J dominik, r M dominis Prester, d donini, A dorner, d dörner, J doro, M dubos, C ducci, L dwarkadas, V V Ebr, J Eckner, C Egberts, K Einecke, S Elsässer, d Emery Department of Physics Tokai University 4-1-1 Kita-Kaname Hiratsuka Kanagawa 259-1292 Japan Institute for Cosmic Ray Research University of Tokyo 5-1-5 Kashiwa-no-ha Kashiwa Chiba 277-8582 Japan ETH Zürich Institute for Particle Physics and Astrophysics Otto-Stern-Weg 5 CH-8093 Zürich Switzerland INFN and Università degli Studi di Siena Dipartimento di Scienze Fisiche della Terra e dell’Ambiente (DSFTA) Sezione di Fisica Via Roma 56 I-53100 Siena Italy Université Paris-Saclay Université Paris Cité CEA CNRS AIM F-91191 Gif-sur-Yvette Cedex France FSLAC IRL 2009 CNRS/IAC E-38205 La Laguna Tenerife Spain University of Alabama Tuscaloosa Department of Physics and Astronomy Gallalee Hall Box 870324 Tuscaloosa AL 35487-0324 USA Université Côte d’Azur Observatoire de la Côte d’Azur CNRS Laboratoire Lagrange UF 06304 Nice France Laboratoire Leprince-Ringuet CNRS/IN2P3 École Polytechnique Institut Polytechnique de Paris F-91120 Palaiseau France Departament de Física Quàntica i Astrofísica Institut de Ciències del Cosmos Universitat de Barcelona IEEC-UB Martí i Franquès 1 E-08028 Barcelona Spain Instituto de Astrofísica de Andalucía-CSIC Glorieta de la Astronomía s/n E-18008 Granada Spain Institute for Computational Cosmology and Department of Physics Durham University South Road Durham DH1 3LE UK Pontificia Universidad Católica de Chile Av. Libertador Bernardo O’Higgins 340 8331150 Santiago Chile Universidad Nacional Autónoma de México Delegación Coyoacán 04510 Ciudad de México Mexico IPARCOS-UCM Instituto de Física de Partículas y del Cosmos and EMFTEL Department Universidad Complutense de Madrid E-28040 Madrid Spain Instituto de Física Teórica UAM/CSIC and Departamento de Física Teórica Universidad Autónoma de Madrid c/ Nicolás Cabrera 13-15 Campus de Cantoblanco UAM E-28049 Madrid Spain LUTH GEPI and LERMA Observatoire de Paris Université PSL Université Paris Cité CNRS 5 place Jules Janssen F-92190 Meudon France INAF – Osservatorio

A wide variety of Galactic sources show transient emission at soft and hard X-ray energies: low- and high-mass X-ray binaries containing compact objects, isolated neutron stars exhibiting extreme variability as magnetars as well as pulsar-wind nebulae. Although most of them can show emission up to MeV and/or GeV energies, many have not yet been detected in the TeV domain by Imaging Atmospheric Cherenkov Telescopes. In this paper, we explore the feasibility of detecting new Galactic transients with the Cherenkov Telescope Array Observatory (CTAO) and the prospects for studying them with Target of Opportunity observations. We show that CTAO will likely detect new sources in the TeV regime, such as the massive microquasars in the Cygnus region, low-mass X-ray binaries with low-viewing angle, flaring emission from the Crab pulsar-wind nebula or other novae explosions, among others. Since some of these sources could also exhibit emission at larger time-scales, we additionally test their detectability at longer exposures. We finally discuss the multiwavelength synergies with other instruments and large astronomical facilities.

关键词： binaries: general stars: magnetars novae cataclysmic variables pulsars: general gamma-rays: general

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Laboratory investigation on warm mix asphalt incorporating organo-silane additive

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IOP Conference Series: Earth and Environmental Science 2020年第1期463卷

作者： S r Omranian M O Hamzah G S Mounik K P reddy Y M Kapadia S Y Teh Faculty of Applied Engineering EMIB-Research Group University of Antwerp 171 Groenenborgerlaan Antwerp 2020 Belgium School of Civil Engineering Universiti Sains Malaysia 14300 Nibong Tebal Penang Malaysia Department of Civil Engineering School of Mechanical and Construction Veltech Rangarajan Dr. Sagunthala R&D Institute of Science and Technology. 42 Avadi-Vel Tech Road Avadi Chennai – 600 062 India Edgenta Propel Berhad Bangsar South 59200 Kuala Lumpur Wilayah Persekutuan Kuala Lumpur Malaysia

Warm mix asphalt (WMA) was developed to reduce asphalt production temperatures and energy consumption. Production of toxic gas emissions can be reduced considerably. However, lowered production temperature results in the presence of trapped moisture in the aggregates that could lead to stripping and subsequently moisture susceptibility problems, and which can be mitigated by using additives. Asphalt mixtures incorporating such additive must exhibit at least similar performance to conventional hot mix asphalts (HMA) which produce at higher temperatures. This paper evaluates the engineering properties and moisture susceptibility of asphalt mixtures incorporating Organo-Silane additive for use as WMA and anti-stripping agent. WMA samples were compacted at 125 °C and 115 °C and their performance were compared with control HMA specimens. The asphalt mixtures were prepared using similar aggregate gradation and binder types. Mixture workability was quantified in terms of the Compaction Energy Index (CEI) that was measured by integrating the area under the densification curve between gyration 8 and 92% theoretical maximum density. Lower CEI implies a more workable mixture. The CEI of WMA was 76.4, which was much less than the corresponding value for HMA. Samples were also tested for Marshal stability, resilient modulus and wheel tracking (WTT) tests according to ASTM d6927, ASTM d4123 and BS EN12697-22 procedures, respectively. The control samples perform better in the stability test. The resilient modulus of WMA was only about 10% lower compared to HMA. resistance to permanent deformation was measured from the dynamic stability (dS) or the number of wheel passes per 1 mm rut depth over the last 15 minutes in a 60-minute tracking test. The dS of HMA, WMA compacted at 125 °C and 115 °C were 3138, 3044 and 2837, respectively. From the rutting resistance standpoint, the results are not significantly different. Hence, incorporation of the additive does not adversely affect mixt

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VHE gamma-ray detection of FSrQ QSO B1420+326 and modeling of its enhanced broadband state in 2020

arXiv

引用

arXiv 2020年

作者： Acciari, V.A. Ansoldi, S. Antonelli, L.A. Arbet Engels, A. Artero, M. Asano, K. Baack, d. Babić, A. Baquero, A. Barres de Almeida, U. Barrio, J.A. Becerra González, J. Bednarek, W. Bellizzi, L. Bernardini, E. Bernardos, M. Berti, A. Besenrieder, J. Bhattacharyya, W. Bigongiari, C. Biland, A. Blanch, O. Bonnoli, G. Bošnjak, Ž. Busetto, G. Carosi, r. Ceribella, G. Cerruti, M. Chai, Y. Chilingarian, A. Cikota, S. Colak, S.M. Colombo, E. Contreras, J.L. Cortina, J. Covino, S. Amico, G.d. Elia, V.d. da Vela, P. dazzi, F. de Angelis, A. de Lotto, B. delfino, M. delgado, J. delgado Mendez, C. depaoli, d. di Pierro, F. di Venere, L. do Souto Espiñeira, E. dominis Prester, d. donini, A. dorner, d. doro, M. Elsaesser, d. Fallah ramazani, V. Fattorini, A. Ferrara, G. Foffano, L. Fonseca, M.V. Font, L. Fruck, C. Fukami, S. García López, r.J. Garczarczyk, M. Gasparyan, S. Gaug, M. Giglietto, N. Giordano, F. Gliwny, P. Godinović, N. Green, J.G. Green, d. Hadasch, d. Hahn, A. Heckmann, L. Herrera, J. Hoang, J. Hrupec, d. Hütten, M. Inada, T. Inoue, S. Ishio, K. Iwamura, Y. Jormanainen, J. Jouvin, L. Kajiwara, Y. Karjalainen, M. Kerszberg, d. Kobayashi, Y. Kubo, H. Kushida, J. Lamastra, A. Lelas, d. Leone, F. Lindfors, E. Lombardi, S. Longo, F. López-Coto, r. López-Moya, M. López-Oramas, A. Loporchio, S. Machado de Oliveira Fraga, B. Maggio, C. Majumdar, P. Makariev, M. Mallamaci, M. Maneva, G. Manganaro, M. Mannheim, K. Maraschi, L. Mariotti, M. Martínez, M. Mazin, d. Mender, S. Mićanović, S. Miceli, d. Miener, T. Minev, M. Miranda, J.M. Mirzoyan, r. Molina, E. Moralejo, A. Morcuende, d. Moreno, V. Moretti, E. Neustroev, V. Nigro, C. Nilsson, K. Ninci, d. Nishijima, K. Noda, K. Nozaki, S. Ohtani, Y. Oka, T. Otero-Santos, J. Paiano, S. Palatiello, M. Paneque, d. Paoletti, r. Paredes, J.M. Pavletić, L. Peñil, P. Perennes, C. Persic, M. Prada Moroni, P.G. Prandini, E. Priyadarshi, C. Puljak, I. rhode, W. ribó, M. rico, J. righi, C. rugliancich, A. Inst. de Astrofísica de Canarias La LagunaE-38200 Spain Universidad de La Laguna Dpto. Astrofísica La Laguna TenerifeE-38206 Spain Università di Udine INFN Trieste UdineI-33100 Italy RomeI-00136 Italy ETH Zürich ZürichCH-8093 Switzerland E-08193 Spain University of Tokyo Kashiwa Chiba277-8582 Japan Technische Universität Dortmund DortmundD-44221 Germany Zagreb10000 Croatia IPARCOS Institute EMFTEL Department Universidad Complutense de Madrid MadridE-28040 Spain URCA Rio de JaneiroRJ22290-180 Brazil University of Lodz Faculty of Physics and Applied Informatics Department of Astrophysics Lodz90-236 Poland Università di Siena INFN Pisa SienaI-53100 Italy ZeuthenD-15738 Germany Università di Padova INFN PadovaI-35131 Italy INFN MAGIC Group INFN Sezione di Torino Università degli Studi di Torino Torino10125 Italy Max-Planck-Institut für Physik MünchenD-80805 Germany Università di Pisa INFN Pisa PisaI-56126 Italy Universitat de Barcelona ICCUB IEEC-UB BarcelonaE-08028 Spain Armenian MAGIC Group: A. Alikhanyan National Science Laboratory Centro de Investigaciones Energéticas Medioambientales y Tecnológicas MadridE-28040 Spain INFN MAGIC Group INFN Sezione di Bari Dipartimento Interateneo di Fisica Università e del Politecnico di Bari Bari70125 Italy Croatian MAGIC Group University of Rijeka Department of Physics Rijeka51000 Croatia Universität Würzburg WürzburgD-97074 Germany Finnish MAGIC Group Finnish Centre for Astronomy with ESO University of Turku TurkuFI-20014 Finland Departament de Física CERES-IEEC Universitat Autònoma de Barcelona BellaterraE-08193 Spain Armenian MAGIC Group: ICRANet-Armenia NAS RA Split21000 Croatia Croatian MAGIC Group Josip Juraj Strossmayer University of Osijek Department of Physics Osijek31000 Croatia Japanese MAGIC Group Department of Physics Kyoto University Kyoto606-8502 Japan Japanese MAGIC Group Department of Physics Tokai University Hiratsuka Kanagawa259-1292

Context. QSO B1420+326 is a blazar classified as a Flat Spectrum radio Quasar (FSrQ). In the beginning of 2020 it underwent an enhanced flux state. An extensive multiwavelength campaign allowed us to trace the evolution of the flare. Aims. We search for VHE gamma-ray emission from QSO B1420+326 during this flaring state. We aim to characterize and model the broadband emission of the source over different phases of the flare. Methods. The source was observed with a number of instruments in radio, near infrared, optical (including polarimetry and spectroscopy), ultraviolet, X-ray and gamma-ray bands. We use dedicated optical spectroscopy results to estimate the accretion disk and the dust torus luminosity. We perform spectral energy distribution modeling in the framework of combined Synchrotron-Self-Compton and External Compton scenario in which the electron energy distribution is partially determined from acceleration and cooling processes. results. during the enhanced state the flux of both SEd components drastically increased and the peaks were shifted to higher energies. Follow up observations with the MAGIC telescopes led to the detection of very-high-energy gamma-ray emission from this source, making it one of only a handful of FSrQs known in this energy range. Modeling allows us to constrain the evolution of the magnetic field and electron energy distribution in the emission region. The gamma-ray flare was accompanied by a rotation of the optical polarization vector during a low polarization state. Also, a new, superluminal radio knot contemporaneously appeared in the radio image of the jet. The optical spectroscopy shows a prominent FeII bump with flux evolving together with the continuum emission and a MgII line with varying equivalent width. Copyright © 2020, The Authors. All rights reserved.

关键词： Gamma rays

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roadmap on deep Learning for Microscopy

arXiv

引用

arXiv 2023年

作者： Volpe, Giovanni Wählby, Carolina Tian, Lei Hecht, Michael Yakimovich, Artur Monakhova, Kristina Waller, Laura Sbalzarini, Ivo F. Metzler, Christopher A. Xie, Mingyang Zhang, Kevin Lenton, Isaac C.d. rubinsztein-dunlop, Halina Brunner, daniel Bai, Bijie Ozcan, Aydogan Midtvedt, daniel Wang, Hao Sladoje, Nataša Lindblad, Joakim Smith, Jason T. Ochoa, Marien Barroso, Margarida Intes, Xavier Qiu, Tong Yu, Li-Yu You, Sixian Liu, Yongtao Ziatdinov, Maxim A. Kalinin, Sergei V. Sheridan, Arlo Manor, Uri Nehme, Elias Goldenberg, Ofri Shechtman, Yoav Moberg, Henrik K. Langhammer, Christoph Špačková, Barbora Helgadottir, Saga Midtvedt, Benjamin Argun, Aykut Thalheim, Tobias Cichos, Frank Bo, Stefano Hubatsch, Lars Pineda, Jesus Manzo, Carlo Bachimanchi, Harshith Selander, Erik Homs-Corbera, Antoni Fränzl, Martin de Haan, Kevin rivenson, Yair Korczak, Zofia Adiels, Caroline Beck Mijalkov, Mite Veréb, dániel Chang, Yu-Wei Pereira, Joana B. Matuszewski, damian Kylberg, Gustaf Sintorn, Ida-Maria Caicedo, Juan C. Cimini, Beth A. Bell, Muyinatu Lediju A. Saraiva, Bruno M. Jacquemet, Guillaume Henriques, ricardo Ouyang, Wei Le, Trang Gómez-de-Mariscal, Estibaliz Sage, daniel Muñoz-Barrutia, Arrate Lindqvist, Ebba Josefson Bergman, Johanna Department of Physics University of Gothenburg Gothenburg41296 Sweden Dept. IT and SciLifeLab Uppsala University Sweden Department of Electrical and Computer Engineering Boston University BostonMA02215 United States Department of Biomedical Engineering Boston University BostonMA02215 United States Görlitz Germany Department of Renal Medicine Division of Medicine University College London Royal Free Hospital Campus London United Kingdom Artificial Intelligence for Life Sciences CIC Dorset United Kingdom Roche Pharma International Informatics Roche Diagnostics GmbH Mannheim Germany Department of Electrical Engineering and Computer Sciences UC Berkeley United States Technische Universität Dresden Faculty of Computer Science Dresden Germany Max Planck Institute of Molecular Cell Biology and Genetics Center for Systems Biology Dresden Dresden Germany University of Maryland College Park United States Klosterneuburg3400 Austria School of Mathematics and Physics The University of Queensland Brisbane4072 Australia Australian Research Council Centre of Excellence for Engineered Quantum Systems The University of Queensland Brisbane4072 Australia Département d’Optique P. M. Duffieux Institut FEMTO-ST Université Franche-Comté CNRS UMR 6174 Besançon France Department of Electrical and Computer Engineering University of California Los Angeles Los AngelesCA United States Department of Information Technology Uppsala University Sweden Department of Biomedical Engineering Rensselaer Polytechnic Institute TroyNY12180 United States Elephas 1 Erdman Pl. Madison53705 United States University of Wisconsin–Madison Department of Medical Physics MadisonWI53705 United States Department of Molecular and Cellular Physiology Albany Medical College AlbanyNY12208 United States Research Laboratory of Electronics Electrical Engineering and Computer Science Massachusetts Institute of Technology BostonMA United States Center for Nanophase Materials Sciences Oak R

Through digital imaging, microscopy has evolved from primarily being a means for visual observation of life at the micro- and nano-scale, to a quantitative tool with ever-increasing resolution and throughput. Artificial intelligence, deep neural networks, and machine learning are all niche terms describing computational methods that have gained a pivotal role in microscopy-based research over the past decade. This roadmap is written collectively by prominent researchers and encompasses selected aspects of how machine learning is applied to microscopy image data, with the aim of gaining scientific knowledge by improved image quality, automated detection, segmentation, classification and tracking of objects, and efficient merging of information from multiple imaging modalities. We aim to give the reader an overview of the key developments and an understanding of possibilities and limitations of machine learning for microscopy. It will be of interest to a wide cross-disciplinary audience in the physical sciences and life sciences. Copyright © 2023, The Authors. All rights reserved.

关键词： Image enhancement

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Phylogenomics,divergence times and notes of orders in Basidiomycota

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Fungal diversity 2024年第3期126卷 127-406页

作者： Mao-Qiang He Bin Cao Fei Liu Teun Boekhout Teodor T.denchev Nathan Schoutteten Cvetomir M.denchev Martin Kemler Sergio P.Gorjón dominik Begerow ricardo Valenzuela Naveed davoodian Tuula Niskanen Alfredo Vizzini Scott A.redhead Virginia ramírez-Cruz Viktor Papp Vasiliy A.dudka Arun Kumar dutta ricardo García-Sandoval Xin-Zhan Liu Teeratas Kijpornyongpan Anton Savchenko Leho Tedersoo Bart Theelen Larissa Trierveiler-Pereira Fang Wu Juan Carlos Zamora Xiang-Yu Zeng Li-Wei Zhou Shi-Liang Liu Masoomeh Ghobad-Nejhad Admir J.Giachini Guo-Jie Li Makoto Kakishima Ibai Olariaga danny Haelewaters Bobby Sulistyo Junta Sugiyama Sten Svantesson Andrey Yurkov Pablo Alvarado Vladimír Antonín AndréFelipe da Silva Irina druzhinina Tatiana B.Gibertoni Laura Guzmán-dávalos Alfredo Justo Samantha C.Karunarathna Mahesh C.A.Galappaththi Merje Toome-Heller Tsuyoshi Hosoya Kare Liimatainen rodrigo Márquez Armin Mešić Jean-Marc Moncalvo LászlóG.Nagy Torda Varga Takamichi Orihara Tania raymundo Isabel Salcedo Alexandre G.S.Silva-Filho Zdenko Tkalčec Felipe Wartchow Chang-Lin Zhao Tolgor Bau Milay Cabarroi-Hernández Alonso Cortés-Pérez Cony decock ruben de Lange Michael Weiss Nelson Menolli Jr. r.Henrik Nilsson Yu-Guang Fan Annemieke Verbeken Yusufjon Gafforov Angelina Meiras-Ottoni renato L.Mendes-Alvarenga Nian-Kai Zeng Qi Wu Kevin d.Hyde Paul M.Kirk rui-Lin Zhao State Key Laboratory of Mycology Institute of MicrobiologyChinese Academy of SciencesBeijing 100101People’s Republic of China The Yeasts Foundation Amsterdamthe Netherlands Institute of Biodiversity and Ecosystem Research Bulgarian Academy of Sciences2 Gagarin St.1113 SofiaBulgaria IUCN SSC Rusts and Smuts Specialist Group SofiaBulgaria Research Group Mycology Department of BiologyGhent UniversityK.L.Ledeganckstraat 359000 GhentBelgium Institute of Plant Science and Microbiology Organismic Botany and MycologyUniversität HamburgOhnhorststr.1822609 HamburgGermany Department of Botany and Plant Physiology Plant DNA-BiobankUniversity of SalamancaC/Licenciado Méndez Nieto s/n37007 SalamancaSpain Departamento de Botánica Instituto Politécnico NacionalEscuela Nacional de Ciencias BiológicasPlan de Ayala y Carpio s/nSanto TomásDel.Miguel HidalgoCP 11340 MexicoMexico Royal Botanic Gardens Victoria MelbourneVIC 3004Australia Fungal Diversity and Systematics Team Royal Botanic GardensKewSurrey TW93ABUK Botany Unit Finnish Museum of Natural HistoryUniversity of HelsinkiP.O.Box 700014 HelsinkiFinland Department of Life Sciences and Systems Biology University of TorinoViale P.A.Mattioli 2510125 TurinItaly Institute for Sustainable Plant Protection(IPSP-SS Turin) C.N.R.Viale P.A.Mattioli2510125 TurinItaly National Mycological Herbarium/DAOM Ottawa Research and Development CentreScience and Technology BranchAgriculture and Agri-Food Canada960 Carling Ave.William Saunders Building(Bldg.49)OttawaON K1A0C6Canada University of Guadalajara Apdo.postal 1-13945147 ZapopanJaliscoMexico Department of Botany Hungarian University of Agriculture and Life Sciences1518 BudapestHungary Komarov Botanical Institute of the Russian Academy of Sciences Prof.Popov Str.2St PetersburgRussia 197376 Yugra State University Chekhova str.16Khanty-MansiyskKhanty-Mansi Autonomous Okrug-YugraRussia 628012 Molecular&Applied Mycology Laboratory Department of BotanyGauhati UniversityGopinath Bordoloi

Basidiomycota is one of the major phyla in the fungal tree of *** outline of Basidiomycota provides essential taxonomic information for researchers and workers in *** this study,we present a time-framed phylogenomic tree with 487 species of Basidiomycota from 127 families,47 orders,14 classes and four subphyla;we update the outline of Basidiomycota based on the phylogenomic relationships and the taxonomic studies since 2019;and we provide notes for each order and discuss the history,defining characteristics,evolution,justification of orders,problems,significance,and *** phylogenomic analysis suggests that the subphyla diverged in a time range of 443-490 Myr(million years),classes in a time range of 312-412 Myr,and orders in a time range of 102-361 *** diverged in a time range of 50-289 Myr,76-224 Myr,and 62-156 Myr in Agaricomycotina,Pucciniomycotina,and Ustilaginomycotina,*** on the phylogenomic relationships and divergence times,we propose a new suborder Mycenineae in Agaricales to accommodate *** the current outline of Basidiomycota,there are four subphyla,20 classes,77 orders,297 families,and 2134 genera *** building a robust taxonomy of Basidiomycota in the genomic era,the generation of molecular phylogenetic data has become relatively *** phenotypical characters,especially those that can be applied for identification and classification,however,has become increasingly challenging.

关键词： Classification Fungi Molecular clock Systematics Taxonomy

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A search for transit timing variations in the HATS-18 planetary system

arXiv

引用

arXiv 2022年

作者： Southworth, John Barker, A.J. Hinse, T.C. Jongen, Y. dominik, M. Jørgensen, U.G. Longa-Peña, P. Sajadian, S. Snodgrass, C. Tregloan-reed, J. Bach-Møller, N. Bonavita, M. Bozza, V. Burgdorf, M.J. Jaimes, r. Figuera Helling, Ch. Hitchcock, J.A. Hundertmark, M. Khalouei, E. Korhonen, H. Mancini, L. Peixinho, N. rahvar, S. rabus, M. Skottfelt, J. Spyratos, P. Astrophysics Group Keele University StaffordshireST5 5BG United Kingdom Department of Applied Mathematics School of Mathematics University of Leeds LeedsLS2 9JT United Kingdom Institute of Astronomy Faculty of Physics Astronomy and Informatics Nicolaus Copernicus University ul. Grudziadzka 5 Toruń87-100 Poland Chungnam National University Department of Astronomy Space Science and Geology Daejeon Korea Republic of Observatoire de Vaison-La-Romaine Départementale 51 près du Centre Equestre au Palis Vaison-La-Romaine84110 France Centre for Exoplanet Science Supa School of Physics & Astronomy University of St Andrews North Haugh St AndrewsKY16 9SS United Kingdom Centre for ExoLife Sciences Niels Bohr Institute University of Copenhagen Øster Voldgade 5 Copenhagen1350 Denmark Centro de Astronomía Citeva Universidad de Antofagasta Av. Angamos 601 Antofagasta Chile Department of Physics Isfahan University of Technology Isfahan84156-83111 Iran Institute for Astronomy University of Edinburgh Royal Observatory EdinburghEH9 3HJ United Kingdom Instituto de Astronomia y Ciencias Planetarias de Atacama Universidad de Atacama Copayapu 485 Copiapo Chile Space Research Institute Austrian Academy of Sciences Schmiedlstrasse 6 Graz8042 Austria Dipartimento di Fisica 'E.R. Caianiello' Università di Salerno Via Giovanni Paolo II 132 Fisciano84084 Italy Istituto Nazionale di Fisica Nucleare Sezione di Napoli Napoli Italy Universität Hamburg Faculty of Mathematics Informatics and Natural Sciences Bundesstraße 55 Hamburg20146 Germany Facultad de Ingeniería y Tecnología Universidad San Sebastian General Lagos 1163 Valdivia5110693 Chile Tu Graz Fakultät für Mathematik Physik und Geodäsie Petersgasse 16 Graz8010 Austria Heidelberg69120 Germany Astronomy Research Center Research Institute of Basic Sciences Seoul National University 1 Gwanak-ro Gwanak-gu Seoul08826 Korea Republic of Alonso de Córdova 3107 Vitacura Santiago Chile Department

HATS-18 b is a transiting planet with a large mass and a short orbital period, and is one of the best candidates for the detection of orbital decay induced by tidal effects. We present extensive photometry of HATS-18 from which we measure 27 times of mid-transit. Two further transit times were measured from data from the Transiting Exoplanet Survey Satellite (TESS) and three more taken from the literature. The transit timings were fitted with linear and quadratic ephemerides and an upper limit on orbital decay was determined. This corresponds to a lower limit on the modified stellar tidal quality factor of Q′∗> 105.11±0.04. This is at the cusp of constraining the presence of enhanced tidal dissipation due to internal gravity waves. We also refine the measured physical properties of the HATS-18 system, place upper limits on the masses of third bodies, and compare the relative performance of TESS and the 1.54m danish Telescope in measuring transit times for this system. © 2022, CC BY.

关键词： Stars

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