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Authenticating the presence of a relativistic massive black hole binary in OJ 287 using its general relativity centenary flare: improved orbital parameters

arXiv

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arXiv 2018年

作者： Dey, Lankeswar Valtonen, M.J. Gopakumar, A. Zola, S. Hudec, R. Pihajoki, P. Ciprini, S. Matsumoto, K. Sadakane, K. Kidger, M. Nilsson, K. Mikkola, S. Sillanpää, A. Takalo, L.O. Lehto, H.J. Berdyugin, A. Piirola, V. Jermak, H. Baliyan, K.S. Pursimo, T. Caton, D.B. Alicavus, F. Baransky, A. Blay, P. Boumis, P. Boyd, D. Torrent, M. Campas Campos, F. Gómez, J. Carrillo Chandra, S. Chavushyan, V. Dalessio, J. Debski, B. Drozdz, M. Er, H. Erdem, A. Pérez, A. Escartin Ramazani, V. Fallah Filippenko, A.V. Gafton, E. Ganesh, S. Garcia, F. Gazeas, K. Godunova, V. Pinilla, F. Gómez Gopinathan, M. Haislip, J.B. Harmanen, J. Hurst, G. Janík, J. Jelinek, M. Joshi, A. Kagitani, M. Karjalainen, R. Kaur, N. Keel, W.C. Kouprianov, V.V. Kundera, T. Kurowski, S. Kvammen, A. LaCluyze, A.P. Lee, B.C. Liakos, A. Lindfors, E. de Haro, J. Lozano Mugrauer, M. Nogues, R. Naves Neely, A.W. Nelson, R.H. Ogloza, W. Okano, S. Pajdosz-Smierciak, U. Pandey, J.C. Perri, M. Poyner, G. Provencal, J. Raj, A. Reichart, D.E. Reinthal, R. Reynolds, T. Saario, J. Sadegi, S. Sakanoi, T. González, J.-L. Salto Sameer Schweyer, T. Simon, A. Siwak, M. Alfaro, F.C. Soldán Sonbas, E. Steele, I. Stocke, J.T. Strobl, J. Tomov, T. Espasa, L. Tremosa Valdes, J.R. Pérez, J. Valero Verrecchia, F. Vasylenko, V. Webb, J.R. Department of Astronomy and Astrophysics Tata Institute of Fundamental Research Mumbai400005 India Finnish Centre for Astronomy with ESO University of Turku Finland Tuorla Observatory Department of Physics and Astronomy University of Turku Finland Astronomical Observatory Jagiellonian University ul. Orla 171 CracowPL-30-244 Poland Mt. Suhora Astronomical Observatory Pedagogical University ul. Podchorazych 2 CracowPL30-084 Poland Czech Technical University in Prague Faculty of Electrical Engineering Technicka 2 Prague166 27 Czech Republic Engelhardt Astronomical observatory Kazan Federal University Kremlyovskaya street 18 Kazan420008 Russia Department of Physics University of Helsinki Gustaf Hällströmin katu 2a HelsinkiFI-00560 Finland Space Science Data Center - Agenzia Spaziale Italiana via del Politecnico snc RomaI-00133 Italy Instituto Nazionale di Fisica Nucleare Sezione di Perugia PerugiaI-06123 Italy Astronomical Institute Osaka Kyoiku University 4-698 Asahigaoka Kashiwara Osaka582-8582 Japan Herschel Science Centre ESAC European Space Agency Villanueva de la CañadaMadrid28691 Spain Tuorla Observatory Department of Physics and Astronomy University of Turku Finland Astrophysics Research Institute Liverpool John Moores University IC2 Liverpool Science Park Brownlow HillL3 5RF United Kingdom Physical Research Laboratory Ahmedabad380009 India Nordic Optical Telescope Apartado 474 Santa Cruz de La PalmaE-38700 Spain Dark Sky Observatory Department of Physics and Astronomy Appalachian State University BooneNC28608 United States Department of Physics Faculty of Arts and Sciences Canakkale Onsekiz Mart University CanakkaleTR-17100 Turkey Astrophysics Research Center Ulupinar Observatory Canakkale Onsekiz Mart University TR-17100 Canakkale Turkey Astronomical Observatory of Taras Shevshenko National University of Kyiv Observatorna str. 3 Kyiv04053 Ukraine Valencian International University Valencia46002 Spain Institute for

Results from regular monitoring of relativistic compact binaries like PSR 1913+16 are consistent with the dominant (quadrupole) order emission of gravitational waves (GWs). We show that observations associated with the binary black hole central engine of blazar OJ 287 demand the inclusion of gravitational radiation reaction effects beyond the quadrupolar order. It turns out that even the effects of certain hereditary contributions to GW emission are required to predict impact flare timings of OJ 287. We develop an approach that incorporates this effect into the binary black hole model for OJ 287. This allows us to demonstrate an excellent agreement between the observed impact flare timings and those predicted from ten orbital cycles of the binary black hole central engine model. The deduced rate of orbital period decay is nine orders of magnitude higher than the observed rate in PSR 1913+16, demonstrating again the relativistic nature of OJ 287’s central engine. Finally, we argue that precise timing of the predicted 2019 impact flare should allow a test of the celebrated black hole "no-hair theorem" at the 10% level. Copyright © 2018, The Authors. All rights reserved.

关键词： Relativity

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Generation of high resolution global DSM from ALOS PRISM

Generation of high resolution global DSM from ALOS PRISM

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ISPRS Technical Commission IV Symposium 2014

作者： Takaku, Junichi Tadono, Takeo Tsutsui, Ken Remote Sensing Technology Center of Japan Tokyu REIT Toranomon BLDG 3F 3-17-1 Minato-ku Tokyo Japan Earth Observation Research Center Japan Aerospace Exploration Agency 2-1-1 Sengen Tsukuba Ibaraki Japan NTT DATA Corporation 3-3-9 Toyosu Koto-ku Tokyo Japan

ISBN: (纸本)9781629935201

Panchromatic remote-sensing Instrument for Stereo Mapping (PRISM), one of onboard sensors carried on the Advanced Land Observing Satellite (ALOS), was designed to generate worldwide topographic data with its optical stereoscopic observation. The sensor consists of three independent panchromatic radiometers for viewing forward, nadir, and backward in 2.5m ground resolution producing a triplet stereoscopic image along its track. The sensor had observed huge amount of stereo images all over the world during the mission life of the satellite from 2006 through 2011. We have semi-automatically processed Digital Surface Model (DSM) data with the image archives in some limited areas. The height accuracy of the dataset was estimated at less than 5m (rms) from the evaluation with ground control points (GCPs) or reference DSMs derived from the Light Detection and Ranging (LiDAR). Then, we decided to process the global DSM datasets from all available archives of PRISM stereo images by the end of March 2016. This paper briefly reports on the latest processing algorithms for the global DSM datasets as well as their preliminary results on some test sites. The accuracies and error characteristics of datasets are analyzed and discussed on various fields by the comparison with existing global datasets such as Ice, Cloud, and land Elevation Satellite (ICESat) data and Shuttle Radar Topography Mission (SRTM) data, as well as the GCPs and the reference airborne LiDAR/DSM.

关键词： Satellites

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GENERATION OF HIGH RESOLUTION GLOBAL DSM FROM ALOS PRISM

GENERATION OF HIGH RESOLUTION GLOBAL DSM FROM ALOS PRISM

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国际摄影测量与遥感学会第四委员会“地理空间数据库与位置服务”国际学术会议

作者： Junichi Takaku Takeo Tadono Ken Tsutsui Remote Sensing Technology Center of Japan Tokyu REIT Toranomon BLDG 3F3-17-1 Minato-ku TokyoJapan Earth Observation Research Center Japan Aerospace Exploration Agency2-1-1 SengenTsukubaIbarakiJapan NTT DATA Corporation 3-3-9 ToyosuKoto-kuTokyoJapan

Panchromatic remote-sensing Instrument for Stereo Mapping(PRISM), one of onboard sensors carried on the Advanced Land Observing Satellite(ALOS), was designed to generate worldwide topographic data with its optical stereoscopic observation. The sensor consists of three independent panchromatic radiometers for viewing forward, nadir, and backward in 2.5m ground resolution producing a triplet stereoscopic image along its track. The sensor had observed huge amount of stereo images all over the world during the mission life of the satellite from 2006 through 2011. We have semi-automatically processed Digital Surface Model(DSM) data with the image archives in some limited areas. The height accuracy of the dataset was estimated at less than 5m(rms) from the evaluation with ground control points(GCPs) or reference DSMs derived from the Light Detection and Ranging(Li DAR). Then, we decided to process the global DSM datasets from all available archives of PRISM stereo images by the end of March 2016. This paper briefly reports on the latest processing algorithms for the global DSM datasets as well as their preliminary results on some test sites. The accuracies and error characteristics of datasets are analyzed and discussed on various fields by the comparison with existing global datasets such as Ice, Cloud, and land Elevation Satellite(ICESat) data and Shuttle Radar Topography Mission(SRTM) data, as well as the GCPs and the reference airborne Li DAR/DSM.

关键词： Three-Line,Stereoscopic,Satellite,Optical,High resolution,DEM/DTM

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GENERATION OF HIGH RESOLUTION GLOBAL DSM FROM ALOS PRISM

GENERATION OF HIGH RESOLUTION GLOBAL DSM FROM ALOS PRISM

引用

“地理空间数据库与位置服务”国际学术会议

作者： Junichi Takaku Takeo Tadono Ken Tsutsui Remote Sensing Technology Center of Japan Tokyu REIT Toranomon BLDG 3F3-17-1 Minato-ku TokyoJapan Earth Observation Research Center Japan Aerospace Exploration Agency2-1-1 SengenTsukubaIbarakiJa NTT DATA Corporation 3-3-9 ToyosuKoto-kuTokyoJapan

Panchromatic remote-sensing Instrument for Stereo Mapping (PRISM),one of onboard sensors carried on the Advanced Land Observing Satellite (ALOS),was designed to generate worldwide topographic data with its optical stereoscopic *** sensor consists of three independent panchromatic radiometers for viewing forward,nadir,and backward in 2.5m ground resolution producing a triplet stereoscopic image along its *** sensor had observed huge amount of stereo images all over the world during the mission life of the satellite from 2006 through *** have semi-automatically processed Digital Surface Model (DSM) data with the image archives in some limited *** height accuracy of the dataset was estimated at less than 5m (rms) from the evaluation with ground control points (GCPs) or reference DSMs derived from the Light Detection and Ranging (LiDAR).Then,we decided to process the global DSM datasets from all available archives of PRISM stereo images by the end of March *** paper briefly reports on the latest processing algorithms for the global DSM datasets as well as their preliminary results on some test *** accuracies and error characteristics of datasets are analyzed and discussed on various fields by the comparison with existing global datasets such as Ice,Cloud,and land Elevation Satellite (ICESat) data and Shuttle Radar Topography Mission (SRTM) data,as well as the GCPs and the reference airborne LiDAR/DSM.

关键词： Three-Line Stereoscopic Satellite Optical High resolution DEM/DTM

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The enerMENA meteorological network – Solar radiation measurements in the MENA region

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AIP Conference Proceedings 2016年第1期1734卷

作者： D. Schüler S. Wilbert N. Geuder R. Affolter F. Wolfertstetter C. Prahl M. Röger M. Schroedter-Homscheidt G. Abdellatif A. Allah Guizani M. Balghouthi A. Khalil A. Mezrhab A. Al-Salaymeh N. Yassaa F. Chellali D. Draou P. Blanc J. Dubranna O. M. K. Sabry DLR German Aerospace Center Institute of Solar Research Plataforma Solar de Almeria 04200 Tabernas Spain CSP Services 04001 Almería Spain and 51143 Cologne Germany University of Applied Sciences Stuttgart Schellingstr. 24 70147 Stuttgart Germany Institut de Recherche en Energie Solaire et Energies Nouvelles IRESEN Rabat Morocco Centre de Recherches et des Technologies de l’Energie Technopole CRTEn Borj Cédria B.P N°95 - 2050 Hammam-Lif Tunisia Cairo University Faculty of Engineering Orman Giza Egypt Université Mohammed 1 Hay El Qods 60000 Oujda Morocco Mechanical Engineering Department Faculty of Engineering & Technology The University of Jordan Amman 11924 Jordan Centre de Developpement des Energies Renouvelables BP. 62 Route de l’Observatoire Bouzareah 16340 Algiers Algeria O.I.E. Centre Observation Impacts Energy MINES ParisTech PSL – Research University Rue Claude Daunesse CS 10207 06904 Sophia Antipolis cedex France New & Renewable Energy Authority NREA El Naga Street Nasr City Cairo Egypt DLR German Aerospace Center German Remote Sensing Data Center 82234 Wessling Germany

For solar resource assessment of solar power plants and adjustment of satellite data, high accuracy measurement data of irradiance and ancillary meteorological data is needed. For the MENA region (Middle East and Northern Africa), which is of high importance for concentrating solar power applications, so far merely 2 publicly available ground measurement stations existed (BSRN network). This gap has been filled by ten stations in Morocco, Algeria, Tunisia, Egypt and Jordan. In this publication the data quality is analyzed by evaluating data completeness and the cleanliness of irradiance sensors in comparison for all of the stations. The pyrheliometers have an average cleanliness of 99.2 % for week-daily cleaning. This is a 5 times higher effort than for Rotating Shadowband Irradiometer (RSI) stations which even have a slightly higher average cleanliness of 99.3 % for weekly cleaning. Furthermore, RSI stations show a data completeness of 99.4 % compared to 93.6 % at the stations equipped with thermal sensors. The results of this analysis are used to derive conclusions concerning instrument choice and are hence also applicable to other solar radiation measurements outside the enerMENA network. It turns out that RSIs are the more reliable and robust choice in cases of high soiling, rare station visits for cleaning and maintenance, as usual in desert sites. Furthermore, annual direct normal and global horizontal irradiation as well as average meteorological parameters are calculated for all of the stations.

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The long-term vicarious and cross calibration plan for Hyper-spectral Imager Suite (HISUI)

The long-term vicarious and cross calibration plan for Hyper...

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IEEE International Symposium on Geoscience and remote sensing (IGARSS)

作者： Akihide Kamei Kazuki Nakamura Tetsushi Tachikawa Hirokazu Yamamoto Ryosuke Nakamura Satoshi Tsuchida AIST Tsukuba Central 2 National Institute of Advanced Industrial Science and Technology (AIST) Tsukuba Ibaraki Japan Forefront Tower 14F 3-12-1 Kachidoki Earth Remote Sensing Data Analysis Center Chuo Tokyo Japan

The hyperspectral and multispectral remote sensing mission named HISUI is the Japanese next-generation Earth observation project that will be onboard ALOS-3. HISUI will be composed of hyperspectral imager (185 spectral bands in VNIR-SWIR region with 30 m spatial resolution) and multispectral imager (4 spectral bands in VNIR region with 5 m spatial resolution). To expand use of Earth observation data from HISUI, quality assurance and control of data products is indispensable, therefore, the long-term radiometric calibration has a crucial role. The objective of this research is to establish the techniques and develop the plans for conducting the in-flight radiometric calibration of HISUI with high frequency, reliability, and stability, based on the traditional in-flight radiometric calibration for multispectral sensors.

关键词： Calibration Radiometry Sensors Hyperspectral imaging Satellites Satellite broadcasting

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Classification of coniferous tree species using aerial hyper spectral observation 2

Classification of coniferous tree species using aerial hyper...

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31st Asian Conference on remote sensing 2010, ACRS 2010

作者： Yabe, Katsuya Kunii, Daisuke Yonezawa, Chinatsu Odagawa, Sinya Kosugi, Yukio Saito, Genya Graduate School of Agricultural Science Tohoku University 1-1 Tsutsumidori-amamiyamachi Aoba-ku Sendai Miyagi 981-8555 Japan Earth Remote Sensing Data Analysis Center Japan Tokyo Institute of Technology Japan

ISBN: (纸本)9781617823978

Hyper spectral image have 67 bands from visible to near infrared red. The purpose of this study is to make a high accurate classification map of tree species using those data. We study about an effectiveness of hyper spectral observation that has high resolution of wavelength. We evaluate the effectiveness by comparing multi spectral data of an existing satellite. The study area is Field Science center (FSC) of Tohoku University in Japan. We produce supervised classification. In the process of this study, we extract the coniferous area to classify easily coniferous tree species. We compare hyper spectral data with multi spectral data. There are visually wrong extractions using multi spectral data. Hyper spectral observation is effective to extract the coniferous area. Using extracted area of coniferous tree, we make a classification map of coniferous tree. In the map, we classify successfully among coniferous tree species. It is important to select suitable bands based on a purpose of classification.

关键词： Antennas

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Classification of coniferous tree species using aerial hyper spectral observation

Classification of coniferous tree species using aerial hyper...

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30th Asian Conference on remote sensing 2009, ACRS 2009

作者： Yabe, Katsuya Namiwa, Fumiko Yonezawa, Chinatsu Saito, Genya Odagawa, Sinya Kosugi, Yukio Graduate School of Agricultural Science Tohoku University 1-1 Tsutsumidori-amamiyamachi Aoba-ku Sendai 981-8555 Japan Earth Remote Sensing Data Analysis Center Japan Tokyo Institute of Technology Japan

ISBN: (纸本)9781615679843

Aerial data of hyper spectral image are acquired using AISA system on 11th August, 2007 and the data have 190 bands from visible to short wave infrared. Using the data, we would like to make high accurate classification map of tree species. We study about an effectiveness of hyper spectral image data that have high resolution of wavelengths. The survey area is located at the foot of mountain. The place is consisted of cedar, larch, pine, natural broadleaf tree, bare soil and grass field. We perform the processing by using the free software of "Multi Spec" that is suitable for conducting hyper spectral data. For processing of classification, we must decrease 190 bands to suitable amount of bands. The declining method of bands is processed by two methods. One is Feature Extraction Method that is the extraction using separation level and another is a method that selects the resemble bands of an existed sensor of satellite. Using spectrum reflect characteristic on wavelengths of the bands, we evaluate the two declining methods. The processing of classification of tree species is a supervised method using suitable bands and field survey data for the training data. We compare about the classification maps. We classify mainly coniferous tree species and the accuracy of the classification map is very high. Suitable bands by Feature Extraction are picked a band from wavelengths of red and two bands from each wavelengths of near infrared red, short wave infrared red and longer near infrared red. In wavelength that selects suitable bands by Feature Extraction, there is difference about reflection strength of each object. Using aerial hyper spectral data, we make a classification map of tree species with high accuracy. Copyright © (2009) by the Asian Association on remote sensing.

关键词： Classification (of information)

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Classification of tree species in Field Science center, Tohoku University, using aerial hyper spectral data

Classification of tree species in Field Science Center, Toho...

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29th Asian Conference on remote sensing 2008, ACRS 2008

作者： Yabe, Katsuya Namiwa, Fumiko Sugihara, Takahiko Yatsu, Itsumi Saito, Genya Odagawa, Shinya Kosugi, Yukio Faculty of Agriculture Tohoku University 1-1 Tsutsumidori-amamiyamachi Aoba-ku Sendai 981-8555 Japan Earth Remote Sensing Data Analysis Center Japan Tokyo Institute of Technology Japan

ISBN: (纸本)9781615676156

Seasonal data of aerial hyper spectral image are acquired using AISA system in 2007 and data have 190 bands from visible to short wave infrared. In field survey, we determine each tree species and positions. We classify tree species in Field Science center, Tohoku University using the hyper spectral data. The hyper spectral data have 190 bands and it is necessary to decline the bands for performing the classification. We want to classify with high accuracy by using suitable bands. For the reason, we conduct feature selection and the feature selection is the method for getting suitable bands from many bands. For the feature selection, training data are necessary and we use field survey data for the training data. Using suitable bands, feature extraction transform method is performed for data reduction. We classify the hyper spectral data by tree species with supervised method using transformed data. We compare with the results and field survey data.

关键词： Antennas

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ASTER science outcome and operation status

ASTER science outcome and operation status

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2005 IEEE International Geoscience and remote sensing Symposium, IGARSS 2005

作者： Yamaguchi, Yasushi Abrams, Michael J. Kato, Masatane Watanabe, Hiroshi Tsu, Hiroji Department of Earth and Planetary Sciences Nagoya University Nagoya 464-8601 Japan Jet Propulsion Laboratory California Institute of Technology Pasadena CA 91109 United States Earth Remote Sensing Data Analysis Center 3-12-1 Kachidoki Chuo-ku Tokyo 104-0054 Japan

ISBN: (纸本)0780390504

Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) is a high spatial resolution multi-spectral imaging radiometer on NASA's Terra satellite launched in December 1999. ASTER spectrally covers the visible and near-infrared (VNIR), short-wave-infrared (SWIR), and thermal infrared (TIR) regions with 14 spectral bands, 15 to 90 m spatial resolution, and 60 km imaging swath. Currently ASTER is acquiring approximately 600 scenes per day as an average, based upon data acquisition requests from users. As of March 10, 2005, ASTER had obtained 937,260 scenes. The ASTER data are being used for a variety of applications in earth sciences, e.g., surface mineralogical mapping, long-term global monitoring of glaciers, volcanoes, and coral reefs, and regional surface heat balance analysis. © 2005 IEEE.

关键词： Imaging techniques

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