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A re-evaluation of the Chaetothyriales using criteria of comparative biology

Fungal Diversity 2020年第4期103卷 47-85页

作者： Yu Quan Lucia Muggia Leandro F.Moreno Meizhu Wang Abdullah M.S.Al-Hatmi Nickolas da Silva Menezes Dongmei Shi Shuwen Deng Sarah Ahmed Kevin D.Hyde Vania A.Vicente Yingqian Kang JBenjamin Stielow Sybren de Hoog Centre of Expertise in Mycology of Radboud University Medical Centre/Canisius Wilhelmina Hospital NijmegenThe Netherlands Key Laboratory of Environmental Pollution Monitoring and Disease Control Ministry of Education of Guizhou&Key Laboratory of Medical Microbiology and ParasitologySchool of Basic Medical SciencesGuizhou Medical UniversityGuiyangChina College of Food and Pharmaceutical Engineering Guizhou Institute of TechnologyGuiyangChina Department of Life Sciences University of TriesteTriesteItaly Amsterdam Medical Center AmsterdamThe Netherlands Foundation Atlas of Clinical Fungi HilversumThe Netherlands Ministry of Health Directorate General of Health ServicesIbriOman Postgraduate Program in Microbiology Parasitology and PathologyBiological SciencesDepartment of Basic PathologyFederal University of ParanaCuritibaBrazil Department of Dermatology&Laboratory of Medical Mycology Jining No.1 People’s HospitalJiningShandongChina Department of Medical Microbiology People’s Hospital of Suzhou National New&Hi-Tech Industrial Development ZoneSuzhouChina Center of Excellence in Fungal Diversity Mae Fah Luang UniversityChiang RaiThailand Thermo Fisher Diagnostics Specialty Diagnostics GroupLandsmeerThe Netherlands Guizhou Academy of Tobacco Science GuiyangChina Engineering Bioprocess and Biotechnology Post-graduation Program Department of Bioprocess Engineering and BiotechnologyFederal University of ParanaCuritibaBrazil

Chaetothyriales is an ascomycetous order within *** order is particularly known through the black yeasts and filamentous relatives that cause opportunistic infections in *** species in the order are consistently *** and habitats of species are highly diverse,and often rather extreme in terms of exposition and *** are defined on the basis of evolutionary history,which is reconstructed by time of divergence and concepts of comparative biology using stochastical character mapping and a multi-rate Brownian motion model to reconstruct ecological ancestral character *** is hypothesized to be with a rock-inhabiting life *** disparity increased significantly in late Jurassic,probably due to expansion of cytochromes followed by colonization of vacant *** diversification took place subsequently,but at a low level of innovation resulting in strong niche conservatism for extant *** are ecologically different in degrees of *** of the clades has adapted ant domatia,which are rich in *** derived families,similar processes have enabled survival in domesticated environments rich in creosote and toxic hydrocarbons,and this ability might also explain the pronounced infectious ability of vertebrate hosts observed in these *** systems of morphological classification poorly correspond with recent phylogenetic *** are hypothesized to have low competitive ability against neighboring microbes,which interferes with their laboratory isolation on routine *** dataset is unbalanced in that a large part of the extant biodiversity has not been analyzed by molecular methods,novel taxonomic entities being introduced at a regular *** study comprises all available species sequenced to date for LSU and ITS,and a nomenclatural overview is provided.A limited number of species could not be assigned to any extant family.

关键词： Black yeasts Phylogeny Ecology Ancestral reconstruction Evolution Nomenclature

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Applicability of zirconium loaded okara in the removal and recovery of phosphorus from municipal wastewater 4

Applicability of zirconium loaded okara in the removal and r...

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4th International Forum on Sustainable Future in Asia, IFSFA 2019

作者： Nguyen, T.A.H. Ngo, H.H. Guo, W.S. Pham, T.Q. Cao, T.H. Nguyen, T.H.H. Master's Program in Environmental Engineering VNU Vietnam Japan University Luu Huu Phuoc My Dinh 1 residential area Nam Tu Liem Hanoi Viet Nam 15 Broadway UltimoNSW2007 Australia Graduate University of Science and Technology Vietnam Academy of Science and Technology 18 Hoang Quoc Viet Cau Giay Hanoi Viet Nam Faculty of Geology VNU University of Science 334 Nguyen Trai Thanh Xuan Hanoi Viet Nam

Recently, there is a new trend to consider wastewater as a precious resource. Since phosphorus is a limited non-renewable element, and MAP (Magnesium Ammonium Phosphate - MgNH4PO4.6H2O) is a valuable slow-release fertilizer, the recovery of phosphorous as MAP has received special attention from scientists all over the world. However, the application of this process with municipal wastewater is still a challenge, due to low concentration of phosphorus and high volume of municipal wastewater. This study investigates the potential of reclaiming MAP from municipal wastewater by combination of adsorption and crystallization. Soybean milk residue (okara) was loaded with Zirconium (Zr) to prepare the adsorbent (ZLO). Adsorption and desorption experiments were conducted in a semi-pilot scale ZLO packed colum system. Effects of P: N: Mg molar ratios, chemical sources and temperature on the formation of MAP were examined in an attempt to identify the optimal crystallization conditions. The attained precipitate was characterized using XRD, SEM, FTIR techniques. It was found that the ZLO packed column adsorption-desorption system could pre-concentrate phosphorus from municipal wastewater up to 28.36 times, fitting well the minimum requirement (50 mg P/L) for the economical MAP recovery. Up to 95.19% of dissolved phosphorus in desorption solution was recovered at pH = 9, Mg: N: P molar ratio = 2:2:1, using a combination of MgCl2.6H2O and NH4Cl. The harvested MAP exhibited high purity (92.59%), high P-availability (89% by mass), and extremely low levels of heavy metals. The results prove that it is viable to recover MAP from municipal wastewater by employing ZLO as adsorbent, followed by crystallization. This paves the way for mining phosphorus from municipal wastewater and reducing okara as an agricultural byproduct in a green way. © 2019 Published under licence by IOP Publishing Ltd.

关键词： Phosphorus

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Towards an integrated pelagic and benthic analysis of long-term coastal eutrophication (Guanabara Bay, Brazil)

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environmental Advances 2024年 15卷

作者： Muniz, Jaqueline Sá Earp Abuchacra, Rodrigo Coutinho Peixoto, Fernando Cunha Abuchacra, Paula Ferreira Falheiro Sanders, Christian J. Salgado, Carla Maciel Baptista Neto, José Antônio Amora-Nogueira, Leonardo Cordeiro, Renato Campello Moreira, Luciane Silva Pinho, Luana Valentin, Jean Louis Faustino, Allana Fonseca-Oliveira, Ana Pio, Douglas Motta Carvalho, Manuela Lima Pinto, Samira Cristina de Souza Machado, Wilson Gomes, Luiz Eduardo de Oliveira Marotta, Humberto Chemical Engineering Graduate Program Universidade Federal Fluminense (UFF) Rua Passo da Pátria 156 RJ Niterói 24210-240 Brazil Ecosystems and Global Change Laboratory (LEMG-UFF) / International Laboratory of Global Change (LINCGlobal) Biomass and Water Management Research Center (NAB-UFF) Graduate Program in Geosciences (Environmental Geochemistry) Universidade Federal Fluminense (UFF) Av. Edmundo March s/n° RJ Niterói 24210-310 Brazil Department of Geography Graduate Program in Geography Universidade do Estado do Rio de Janeiro (UERJ-FFP) Rua Dr Francisco Portela 1470 São Gonçalo Rio de Janeiro 24435-005 Brazil Instituto Militar de Engenharia (IME) Praça General Tibúrcio 80 Praia Vermelha Rio de Janeiro 22290-270 Brazil Physical Geography Laboratory (LAGEF-UFF) Department of Geography Graduate Program in Geography Universidade Federal Fluminense (UFF) Av. Gal. Milton Tavares de Souza s/n° RJ Niterói 24210-346 Brazil National Marine Science Centre Faculty of Science and Engineering Southern Cross University Coffs Harbour 2450 NSW Australia Department of Geology and Geophysics/LAGEMAR Universidade Federal Fluminense (UFF) Av. General Milton Tavares de Souza s/n RJ Niterói 24210-346 Brazil Department of Chemical Oceanography Rio de Janeiro State University Pavilhão João Lyra Filho sala 4008 Bloco E Rua São Francisco Xavier 524 Maracanã – RJ 20550-900 Brazil Department of Marine Biology Federal University of Rio de Janeiro Rio de Janeiro Brazil NGO Guardiões do Mar Rua Alfredo Azamor 739 Boa Vista RJ São Gonçalo 24466-000 Brazil Silvestrum Climate Associates L.L.C. 1 Lower Crescent Ave Sausalito CA United States

Coastal ecosystems are important destinations for natural and anthropogenic inputs, areas experiencing eutrophication from untreated sewage globally. However, the mechanistic link of how coastal waters and sediments can jointly respond to nutrient enrichment, especially nitrogen (N) and phosphorus (P), remains relatively unknown. Here, we assessed the interdecadal variability in N and P contents, comparing four surface water sampling sites (∼40-year monthly concentrations) and three ²¹⁰Pb dated sediment cores (∼70-years) in an urban bay that has received increasingly high untreated sewage discharges over the past century (Guanabara Bay, Brazil). Major eutrophication was found, with differences between waters and sediments along sampling sites. The water concentrations of total phosphorus (TP) and dissolved inorganic nitrogen (DIN) yielded on average ∼10–45 % and ∼40–190 % higher in 2005–2017 compared to 1980–2005 period in the sampling site most influenced by the denser urban than the conserved area, respectively. Furthermore, 6-year average water concentrations indicated both recent initial decreases in the most urban area, potentially associated with new sanitation facilities, and high increases in those relatively more conserved areas. Conversely, TP and TN sediment burial rates were less sensitive to recent changes as compared to the water concentrations, yielding ∼11 and 31 % between 1980–2005 and 2005–2017, respectively, of which also provided baselines data for earlier periods without direct pelagic measurements (i.e., 1950–1980). Thus, these findings offer new insights into substantial temporal and intra-ecosystem spatial variability of coastal eutrophication, indicating that an integrated analysis between water monitoring and sediment burial is needed to improve the diagnosis and prediction capabilities necessary for effective long-term mitigation of coastal aquatic eutrophication worldwide. © 2023

关键词： 210Pb dating Coastal eutrophication Sediment burial Urban bay Water monitoring

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Flood Problem in Pekanbaru City Analysis Using GIS Approach

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Journal of Physics: Conference Series 2021年第1期1783卷

作者： Husnul Kausarian Adi Suryadi Susilo Batara Josaphat Tetuko Sri Sumantyo Geological Engineering Program Universitas Islam Riau Jl. Kaharuddin Nasution 113 28284 Pekanbaru-Riau Indonesia Center for Environmental Remote Sensing Advance Integration Science Chiba University 1-33 Yayoi-Inage Chiba 263-8522 Japan

Pekanbaru City, Riau Province, Indonesia is located at coordinates 0°25'29.20''-0°39'15.22'' N and 101°20'43.39''- 101°34'25.60'' E. This research ai...

Pekanbaru City, Riau Province, Indonesia is located at coordinates 0°25'29.20''-0°39'15.22'' N and 101°20'43.39''- 101°34'25.60'' E. This research aims to study the common causes of flooding in Pekanbaru city which has a good geological condition. This study uses two types of data as primary and secondary data in the form of geomorphological, geological, rainfall and land use data with a geographic information system (GIS) analysis that can help spatial analysis to determine the level of flood disaster vulnerability with visual mapping models. The geomorphological analysis shows 2 types of geomorphological units found: low-land denudational and low-land structural with river flow pattern consisting of dendritic, sub-dendritic and parallel. Rainfall is quite high in 2018 with 2621.5 mm and caused flood-prone areas which are divided into 3 categories: Non vulnerable area (64.575%), Medium Vulnerable area (23,386%) and Vulnerable area (12,039%) from the entire of the research area.

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Joint Observation of the Galactic Center with MAGIC and CTA-LST-1 38

Joint Observation of the Galactic Center with MAGIC and CTA-...

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38th International Cosmic Ray Conference, ICRC 2023

作者： Abe, Shotaro Berti, Alessio Di Pierro, Federico López-Coto, Rubén Moralejo, Abelardo Ohtani, Yoshiki Sitarek, Julian Strzys, Marcel Suda, Yusuke Vovk, Ievgen Abe, H. Abe, K. Abe, S. Abhir, J. Acciari, V.A. Aguasca-Cabot, A. Agudo, I. Alvarez Crespo, N. Aniello, T. Ansoldi, S. Antonelli, L.A. Aramo, C. Arbet-Engels, A. Cornelia, A. Artero, M. Asano, K. Aubert, P. Baack, D. Babić, A. Baktash, A. Bamba, A. Baquero Larriva, A. Baroncelli, L. Barres de Almeida, U. Barrio, J.A. Batkovic, I. Baxter, J. Becerra González, J. Bednarek, W. Bernardini, E. Bernardos, M.I. Bernete Medrano, J. Berti, A. Besenrieder, J. Bhattacharjee, P. Biederbeck, N. Bigongiari, C. Biland, A. Bissaldi, E. Blanch, O. Bonnoli, G. Bordas, P. Bošnjak, Ž. Bulgarelli, A. Burelli, I. Burmistrov, L. Buscemi, M. Busetto, G. Campoy-Ordaz, A. Cardillo, M. Caroff, S. Carosi, A. Carosi, R. Carrasco, M.S. Carretero-Castrillo, M. Cassol, F. Castro-Tirado, A.J. Cauz, D. Cerasole, D. Ceribella, G. Chai, Y. Cheng, K. Chiavassa, A. Chikawa, M. Chilingarian, A. Chytka, L. Cifuentes, A. Cikota, S. Colombo, E. Contreras, J.L. Cortina, J. Costantini, H. Covino, S. D’Amico, G. Dalchenko, M. D’Elia, V. Da Vela, P. Dazzi, F. De Angelis, A. de Bony de Lavergne, M. De Lotto, B. De Lucia, M. de Menezes, R. Del Peral, L. Deleglise, G. Delfino, M. Delgado, C. Delgado Mengual, J. della Volpe, D. Dellaiera, M. Del Popolo, A. Depaoli, D. Di Piano, A. Di Pierro, F. Di Pilato, A. Di Tria, R. Di Venere, L. Díaz, C. Dominik, R.M. Dominis Prester, D. Donini, A. Dorner, D. Doro, M. Eisenberger, L. Elsässer, D. Emery, G. Escudero, J. Fallah Ramazani, V. Fariña, L. Fattorini, A. Ferrara, G. Ferrarotto, F. Fiasson, A. Foffano, L. Font, L. Freixas Coromina, L. Fröse, S. Fukami, S. Fukazawa, Y. Garcia, E. Garcia López, R. Garczarczyk, M. Gasbarra, C. Gasparrini, D. Gasparyan, S. Gaug, M. Geyer, D. Giesbrecht Paiva, J. Giglietto, N. Giordano, F. Gliwny, P. Godinovic, N. Grau, R. Green, J. Green, D. Gunji, S. Günther, P. Hackfeld, J. Hadasch, D. Hahn, A. Institute for Cosmic Ray Research Kashiwa-no-ha 5-1-5 Kashiwa-shi Chiba Japan Max-Planck-Institut für Physik Föhringer Ring 6 München80805 Germany INFN Sezione di Torino Via P. Giuria 1 Torino10125 Italy Instituto de Astrofísica de Andalucía-CSIC Glorieta de la Astronomía s/n Granada18008 Spain The Barcelona Institute of Science and Technology Campus UAB Bellaterra Barcelona08193 Spain Faculty of Physics and Applied Informatics University of Lodz ul. Pomorska 149-153 Lodz90-236 Poland Physics Program Graduate School of Advanced Science and Engineering Hiroshima University Hiroshima739-8526 Japan Institute for Cosmic Ray Research University of Tokyo Japan Department of Physics Tokai University Japan ETH Zürich Switzerland Instituto de Astrofísica de Canarias Departamento de Astrofísica Universidad de La Laguna Spain Departament de Física Quàntica i Astrofísica Institut de Ciències del Cosmos Universitat de Barcelona IEEC-UB Spain EMFTEL department IPARCOS Universidad Complutense de Madrid Spain Italy INFN Sezione di Trieste Università degli Studi di Udine Italy Italy INAF Osservatorio Astronomico di Roma Italy INFN Sezione di Napoli Italy INFN Sezione di Padova Università degli Studi di Padova Italy LAPP Univ. Grenoble Alpes Univ. Savoie Mont Blanc CNRS-IN2P3 Annecy France Department of Physics TU Dortmund University Germany Croatia Universität Hamburg Institut für Experimentalphysik Germany Graduate School of Science University of Tokyo Japan Universidad del Azuay Ecuador INAF Osservatorio di Astrofisica e Scienza dello spazio di Bologna Italy Centro Brasileiro de Pesquisas Físicas Brazil CIEMAT Spain INFN Sezione di Bari Politecnico di Bari Italy INAF Osservatorio Astronomico di Brera Italy University of Geneva Département de physique nucléaire et corpusculaire Switzerland INFN Sezione di Catania Italy Departament de Física CERES-IEEC Universitat Autónoma de Barcelona Spain Italy Università di Pisa INFN Pisa Italy Aix Mars

MAGIC is a system of two Imaging Atmospheric Cherenkov Telescopes (IACTs), designed to detect very-high-energy gamma rays, and is operating in stereoscopic mode since 2009 at the Observatorio del Roque de Los Muchachos in La Palma, Spain. In 2018, the prototype IACT of the Large-Sized Telescope (LST-1) for the Cherenkov Telescope Array, a next-generation ground-based gamma-ray observatory, was inaugurated at the same site, at a distance of approximately 100 meters from the MAGIC telescopes. Using joint observations between MAGIC and LST-1, we developed a dedicated analysis pipeline and established the threefold telescope system via software, achieving the highest sensitivity in the northern hemisphere. Based on this enhanced performance, MAGIC and LST-1 have been jointly and regularly observing the Galactic Center, a region of paramount importance and complexity for IACTs. In particular, the gamma-ray emission from the dynamical center of the Milky Way is under debate. Although previous measurements suggested that a supermassive black hole Sagittarius A* plays a primary role, its radiation mechanism remains unclear, mainly due to limited angular resolution and sensitivity. The enhanced sensitivity in our novel approach is thus expected to provide new insights into the question. We here present the current status of the data analysis for the Galactic Center joint MAGIC and LST-1 observations. © Copyright owned by the author(s) under the terms of the Creative Commons.

关键词： Cosmology

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Corrigendum to ‘Stocks and flows of sand, gravel, and crushed stone in China (1978-2018): Evidence of the peaking and structural transformation of supply and demand’

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Resources, Conservation and Recycling 2022年 182卷

作者： Zijian Ren Meng Jiang Dingjiang Chen Yadong Yu Fei Li Ming Xu Stefan Bringezu Bing Zhu Department of Chemical Engineering Tsinghua University Beijing 100084 China Institute for Circular Economy Tsinghua University Beijing 100084 China Department of Energy and Process Engineering Norwegian University of Science and Technology (NTNU) Trondheim 7495 Norway School of Business East China University of Science and Technology Shanghai 200237 China School of Civil and Transportation Engineering Beijing University of Civil Engineering and Architecture Beijing 100044 China School for Environment and Sustainability University of Michigan Ann Arbor MI 48109-1041 USA Department of Civil and Environmental Engineering University of Michigan Ann Arbor MI 48109-2125 USA Center for Environmental Systems Research (CESR) University of Kassel Kassel 34109 Germany Energy Climate and Environment Program International Institute for Applied Systems Analysis (IIASA) Schlossplatz 1 Laxenburg 2361 Austria

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Retraction notice to "Toxicity assessment of SARS-CoV-2-derived peptides in combination with a mix of pollutants on zebrafish adults: A perspective study of behavioral, biometric, mutagenic, and biochemical toxicity" [Sci. Total Environ. 858 Part 2 (2023) 159838]

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The science of the total environment 2024年 957卷 177710页

作者： Ítalo Nascimento Freitas Amanda Vieira Dourado Amanda Pereira da Costa Araújo Sindoval Silva de Souza Thiarlen Marinho da Luz Abraão Tiago Batista Guimarães Alex Rodrigues Gomes Abu Reza Md Towfiqul Islam Md Mostafizur Rahman Andrés Hugo Arias Davoodbasha Mubarak Ali Chinnasamy Ragavendran Chinnaperumal Kamaraj Guilherme Malafaia Laboratory of Toxicology Applied to the Environment Goiano Federal Institute Urutaí GO Brazil Post-Graduation Program in Ecology Conservation and Biodiversity Federal University of Uberlândia Uberlândia MG Brazil. Laboratory of Toxicology Applied to the Environment Goiano Federal Institute Urutaí GO Brazil. Post-Graduation Program in Environmental Sciences Federal University of Goiás Goiânia GO Brazil. Post-Graduation Program in Biotechnology and Biodiversity Federal University of Goiás Goiânia GO Brazil. Post-Graduation Program in Conservation of Cerrado Natural Resources Goiano Federal Institute Urutaí GO Brazil. Begum Rokeya University Department of Disaster Management Rangpur 5404 Bangladesh. Laboratory of Environmental Health and Ecotoxicology Department of Environmental Sciences Jahangirnagar University Dhaka 1342 Bangladesh. Instituto Argentino de Oceanografía (IADO) Universidad Nacional del Sur (UNS)-CONICET Florida 8000 Complejo CCT CONICET Bahía Blanca Edificio E1 B8000BFW Bahía Blanca Argentina. Petroleum and Chemical Engineering Faculty of Engineering Universiti Teknologi Brunei Bandar Seri Begawan BE1410 Brunei Darussalam. Department of Conservative Dentistry and Endodontics Saveetha Dental College and Hospitals Saveetha Institute of Medical and Technical Sciences (SIMATS) Chennai India. Interdisciplinary Institute of Indian System of Medicine (IIISM) Directorate of Research and Virtual Education SRM Institute of Science and Technology (SRMIST) Kattankulathur 603203 Tamil Nadu India. Post-Graduation Program in Ecology Conservation and Biodiversity Federal University of Uberlândia Uberlândia MG Brazil Post-Graduation Program in Biotechnology and Biodiversity Federal University of Goiás Goiânia GO Brazil

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Manufacture and assessment of high loading printing paper using GCC-MFC composites (2) - Effect of GCC-MFC composites on physical properties of high-loading printing paper-

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Palpu Chongi Gisul/Journal of Korea Technical Association of the Pulp and Paper Industry 2019年第6期51卷 120-127页

作者： Choi, Choel Kyu Yoo, Sung Jong Lee, Yong Kyu Won, Jong Myoung Tae Kyung Ind. Co. Ltd. Wonteo 1-gil Munkwang-myeon Goesan-gun Chungcheongbuk-do28055 Korea Republic of Program of Paper Science and Engineering Division of Forest Material Science and Engineering College of Forest and Environmental Sciences Kangwon National University Chuncheon24341 Korea Republic of

Papermaking filler is used as a very important subsidiary material to improve the opacity and printability of paper, and to reduce energy consumption and production cost. However, the strength of the paper decreases significantly as the ash content increases, and thus making it difficult to increase the amount of filler used. GCC-MFC composites were prepared as a part of increasing ash content without loss of paper strength, and compared with GCC and pre-flocculated GCC. When GCC is used as a filler, it is widely distributed on the surface of the fiber. However, the GCC-MFC composites were distributed in the form of large aggregates in the spaces between the fibers, thereby contribute the reduction of the interference of inter-fiber bonding. As a result, when the GCC-MFC composite was used as a filler, the bulk wass slightly reduced and air resistance was higher compared to the case of using GCC and pre-flocculated GCC, but the tensile strength, the bursting strength and the tear strength were improved. However, the Taber stiffness of paper with pre-flocculated GCC and/or GCC-MFC composites was lower than that of GCC. When applying GCC-MFC prepared with 3% MFC, it was confirmed that the printing paper having superior strength properties than GCC and/or pre-flocculated GCC in the ash content of 20-35% could be manufactured. © 2019 Korean Technical Assoc. of the Pulp and Paper Industry. All rights reserved.

关键词： Flocculation

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Chemistry and physics of a low-metallicity hot core in the Large Magellanic Cloud

arXiv

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arXiv 2020年

作者： Shimonishi, Takashi Das, Ankan Sakai, Nami Tanaka, Kei E.I. Aikawa, Yuri Onaka, Takashi Watanabe, Yoshimasa Nishimura, Yuri Center for Transdisciplinary Research Niigata University Ikarashi-ninocho 8050 Nishi-ku Niigata950-2181 Japan Environmental Science Program Department of Science Faculty of Science Niigata University Ikarashi-ninocho 8050 Nishi-ku Niigata950-2181 Japan Indian Centre for Space Physics 43 Chalantika Garia Station Road Kolkata700084 India RIKEN 2-1 Hirosawa Wako Saitama351-0198 Japan Department of Earth and Space Science Osaka University Toyonaka Osaka560-0043 Japan ALMA Project National Astronomical Observatory of Japan Mitaka Tokyo181-8588 Japan Department of Astronomy Graduate School of Science University of Tokyo 7-3-1 Hongo Bunkyo-ku Tokyo113-0033 Japan Department of Physics Faculty of Science and Engineering 2-1-1 Hodokubo Hino Tokyo191-0042 Japan College of Engineering Nihon University 1 Nakagawara Tokusada Tamuramachi Koriyama Fukushima963-8642 Japan Institute of Astronomy University of Tokyo 2-21-1 Osawa Mitaka Tokyo181-0015 Japan

We here present the results of 0.1 pc-scale observations in 250 and 350 GHz towards a newly-discovered hot molecular core in a nearby low-metallicity galaxy, the Large Magellanic Cloud (LMC), with the Atacama Large Millimeter/submillimeter Array. A variety of C/N/O/Si/S-bearing molecules are detected towards the high-mass young stellar object, ST16. A rotating protostellar envelope is for the first time detected outside our Galaxy by SO2 and 34SO lines. An outflow cavity is traced by CCH and CN. The isotope abundance of sulfur in the source is estimated to be 32S/34S = 17 and 32S/33S = 53 based on SO, SO2, and CS isotopologues, suggesting that both 34S and 33S are overabundant in the LMC. Rotation diagram analyses show that the source is associated with hot gas (>100 K) traced by high-excitation lines of CH3OH and SO2, as well as warm gas (∼50 K) traced by CH3OH, SO2, 34SO, OCS, CH3CN lines. A comparison of molecular abundances between LMC and Galactic hot cores suggests that organic molecules (e.g., CH3OH, a classical hot core tracer) show a large abundance variation in low metallicity, where the present source is classified into an organic-poor hot core. Our astrochemical simulations suggest that different grain temperature during the initial ice-forming stage would contribute to the chemical differentiation. In contrast, SO2 shows similar abundances within all the known LMC hot cores and the typical abundance roughly scales with the LMC's metallicity. Nitrogen-bearing molecules are generally less abundant in the LMC hot cores, except for NO. The present results suggest that chemical compositions of hot cores do not always simply scale with the metallicity. Copyright © 2020, The Authors. All rights reserved.

关键词： Astrophysics

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Development of an advanced SiPM camera for the Large Size Telescope of the Cherenkov Telescope Array Observatory 37

Development of an advanced SiPM camera for the Large Size Te...

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37th International Cosmic Ray Conference, ICRC 2021

作者： Bellato, M. Bergnoli, A. Bernasconi, E. Biland, A. Charbon, E. Corti, D. Gascón, D. Gómez, S. Ziȩtara, K. Abe, H. Aguasca, A. Agudo, I. Antonelli, L.A. Aramo, C. Armstrong, T. Artero, M. Asano, K. Ashkar, H. Aubert, P. Baktash, A. Bamba, A. Baquero Larriva, A. Baroncelli, L. Barres de Almeida, U. Barrio, J.A. Batkovic, I. Becerra González, J. Bernardos, M.I. Berti, A. Biederbeck, N. Bigongiari, C. Blanch, O. Bonnoli, G. Bordas, P. Bose, D. Bulgarelli, A. Burelli, I. Buscemi, M. Cardillo, M. Caroff, S. Carosi, A. Cassol, F. Cerruti, M. Chai, Y. Cheng, K. Chikawa, M. Chytka, L. Contreras, J.L. Cortina, J. Costantini, H. Dalchenko, M. De Angelis, A. de Bony de Lavergne, M. Deleglise, G. Delgado, C. Delgado Mengual, J. della Volpe, D. Depaoli, D. Di Pierro, F. Di Venere, L. Díaz, C. Dominik, R.M. Dominis Prester, D. Donini, A. Dorner, D. Doro, M. Elsässer, D. Emery, G. Escudero, J. Fiasson, A. Foffano, L. Fonseca, M.V. Freixas Coromina, L. Fukami, S. Fukazawa, Y. Garcia, E. Garcia López, R. Giglietto, N. Giordano, F. Gliwny, P. Godinovic, N. Green, D. Grespan, P. Gunji, S. Hackfeld, J. Hadasch, D. Hahn, A. Hassan, T. Hayashi, K. Heckmann, L. Heller, M. Herrera Llorente, J. Hirotani, K. Hoffmann, D. Horns, D. Houles, J. Hrabovsky, M. Hrupec, D. Hui, D. Hütten, M. Inada, T. Inome, Y. Iori, M. Ishio, K. Iwamura, Y. Jacquemont, M. Jimenez Martinez, I. Jouvin, L. Jurysek, J. Kagaya, M. Karas, V. Katagiri, H. Kataoka, J. Kerszberg, D. Kobayashi, Y. Kong, A. Kubo, H. Kushida, J. Lamanna, G. Lamastra, A. Le Flour, T. Longo, F. López-Coto, R. López-Moya, M. López-Oramas, A. Luque-Escamilla, P.L. Majumdar, P. Makariev, M. Mandat, D. Manganaro, M. Mannheim, K. Mariotti, M. Marquez, P. Marsella, G. Martí, J. Martinez, O. Martínez, G. Martínez, M. Marusevec, P. Mas, A. Maurin, G. Mazin, D. Mestre Guillen, E. Micanovic, S. Miceli, D. Miener, T. Miranda, J.M. Miranda, L.D.M. Mirzoyan, R. Mizuno, T. Molina, E. Montaruli, T. Monteiro, I. AQUA EPFL Neuchâtel Switzerland ETH Zurich Institute for Particle Physics Otto-Stern-Weg 5 Zurich8093 Switzerland Astronomical Observatory Jagiellonian University ul. Orla 171 Kraków30-244 Poland Institute for Cosmic Ray Research University of Tokyo Japan Departament de Física Quàntica i Astrofísica Institut de Ciències del Cosmos Universitat de Barcelona IEEC-UB Martí i Franquès 1 Barcelona08028 Spain Instituto de Astrofísica de Andalucía CSIC Spain INAF Osservatorio Astronomico di Roma Italy INFN Sezione di Napoli Italy Aix Marseille Univ CNRS IN2P3 CPPM Marseille France Barcelona Institute of Science and Technology Spain IRFU CEA Université Paris-Saclay France LAPP Univ. Grenoble Alpes Univ. Savoie Mont Blanc CNRS IN2P3 Annecy France Universität Hamburg Institut für Experimentalphysik Germany Graduate School of Science University of Tokyo Japan EMFTEL department IPARCOS Universidad Complutense de Madrid Spain INAF Osservatorio di Astrofisica e Scienza dello spazio di Bologna Centro Brasileiro de Pesquisas Físicas Brazil INFN Sezione di Padova Università degli Studi di Padova Via Marzolo 8 Padova35131 Italy Instituto de Astrofísica de Canarias Departamento de Astrofísica Universidad de La Laguna Spain Max-Planck-Institut für Physik Germany Department of Physics TU Dortmund University Germany Saha Institute of Nuclear Physics India INFN Sezione di Trieste Università degli Studi di Udine Italy INFN Sezione di Catania Italy University of Geneva Département de Physique Nucléaire et Corpusculaire 24 Quai Ernest Ansermet GenèveCH-1211 Switzerland Palacky University Olomouc Faculty of Science Czech Republic CIEMAT Port d’Informació Científica INFN Sezione di Torino via P. Giuria 1 Torino10125 Italy Dipartimento di Fisica Universitá degli Studi di Torino via P. Giuria 1 Torino10125 Italy INFN Sezione di Bari Università di Bari University of Rijeka Department of Physics Institute for Theoretical Physics and Astrophysics Universitä

Silicon photomultipliers (SiPMs) have become the baseline choice for cameras of the small-sized telescopes (SSTs) of the Cherenkov Telescope Array (CTA). On the other hand, SiPMs are relatively new to the field and covering large surfaces and operating at high data rates still are challenges to outperform photomultipliers (PMTs). The higher sensitivity in the near infra-red and longer signals compared to PMTs result in higher night sky background rate for SiPMs. However, the robustness of the SiPMs represents a unique opportunity to ensure long-term operation with low maintenance and better duty cycle than PMTs. The proposed camera for large size telescopes will feature 0.05◦ pixels, low power and fast front-end electronics and a fully digital readout. In this work, we present the status of dedicated simulations and data analysis for the performance estimation. The design features and the different strategies identified, so far, to tackle the demanding requirements and the improved performance are described. © Copyright owned by the author(s) under the terms of the Creative Commons.

关键词： Photomultipliers

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