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Discovery of a new supergiant fast X-ray transient MAXI J0709-159 associated with the Be star LY Canis Majoris

文献类型：期刊论文

作者Sugizaki, Mutsumi1; Mihara, Tatehiro2; Kobayashi, Kohei3; Negoro, Hitoshi3; Shidatsu, Megumi4; Pike, Sean N.5; Iwakiri, Wataru6; Urabe, Sota6; Serino, Motoko7; Kawai, Nobuyuki8
刊名PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN
出版日期2022-07-28
页码12
ISSN号0004-6264
关键词stars: Be stars: invdividual (LY Canis Majoris, HD 54786) stars: neutron supergiant X-rays: binaries
DOI10.1093/pasj/psac059
英文摘要We report on the discovery of a new supergiant fast X-ray transient (SFXT), MAXI J0709-159, and its identification with LY CMa (also known as HD 54786). On 2022 January 25, a new flaring X-ray object, named MAXI J0709-159, was detected by the Monitor of All-sky X-ray Image (MAXI). Two flaring activities were observed in two scans similar to 3 hr apart, where the 2-10 keV flux reached 5 x 10(-9) erg cm(-2) s(-1). During the period, the source exhibited a large spectral change, suggesting that the absorption column density N-H increased from 10(22) to 10(23) cm(-2). A NuSTAR follow-up observation on January 29 identified a new X-ray source with a flux of 6 x 10(-13) erg cm(-2) s(-1) at a position consistent with LY CMa, which has been identified as a B supergiant as well as a Be star, located at a 3 kpc distance. The observed X-ray activity, characterized by short (less than or similar to several hours) duration, rapid (less than or similar to a few seconds) variabilities accompanied by spectral changes, and a large luminosity swing (10(32)-10(37) erg s(-1)), agree with those of SFXTs. On the other hand, optical spectroscopic observations of LY CMa reveal a broad H alpha emission line, which may indicate the existence of a Be circumstellar disk. These results suggest that the optical companion, LY CMa, certainly has a complex circumstellar medium including dense clumps.
WOS关键词SLIT CAMERA GSC ; BINARIES ; TELESCOPE ; CATALOG ; PERSEI ; ORBIT
资助项目Chinese Academy of Sciences (CAS) President's International Fellowship Initiative (PIFI)[2020FSM004] ; Ministry of Education, Culture, Sports, Science and Technology (MEXT) of Japan[17H06362] ; Ministry of Education, Culture, Sports, Science and Technology (MEXT) of Japan[19K14762] ; Ministry of Education, Culture, Sports, Science and Technology (MEXT) of Japan[21K03620] ; Russian Space Agency (Roskosmos) ; Deutsches Zentrum f ur Luft-und Raumfahrt (DLR) ; Max Planck Institute for Extraterrestrial Physics (MPE) ; Max Planck Society ; Space Telescope Science Institute under US Government grant[NAG W-2166] ; National Science Foundation ; National Geographic Society ; Sloan Foundation ; Samuel Oschin Foundation ; Eastman Kodak Corporation ; UK Science and Engineering Research Council
WOS研究方向Astronomy & Astrophysics
语种英语
出版者OXFORD UNIV PRESS
WOS记录号WOS:000834300200001
资助机构Chinese Academy of Sciences (CAS) President's International Fellowship Initiative (PIFI) ; Chinese Academy of Sciences (CAS) President's International Fellowship Initiative (PIFI) ; Ministry of Education, Culture, Sports, Science and Technology (MEXT) of Japan ; Ministry of Education, Culture, Sports, Science and Technology (MEXT) of Japan ; Russian Space Agency (Roskosmos) ; Russian Space Agency (Roskosmos) ; Deutsches Zentrum f ur Luft-und Raumfahrt (DLR) ; Deutsches Zentrum f ur Luft-und Raumfahrt (DLR) ; Max Planck Institute for Extraterrestrial Physics (MPE) ; Max Planck Institute for Extraterrestrial Physics (MPE) ; Max Planck Society ; Max Planck Society ; Space Telescope Science Institute under US Government grant ; Space Telescope Science Institute under US Government grant ; National Science Foundation ; National Science Foundation ; National Geographic Society ; National Geographic Society ; Sloan Foundation ; Sloan Foundation ; Samuel Oschin Foundation ; Samuel Oschin Foundation ; Eastman Kodak Corporation ; Eastman Kodak Corporation ; UK Science and Engineering Research Council ; UK Science and Engineering Research Council ; Chinese Academy of Sciences (CAS) President's International Fellowship Initiative (PIFI) ; Chinese Academy of Sciences (CAS) President's International Fellowship Initiative (PIFI) ; Ministry of Education, Culture, Sports, Science and Technology (MEXT) of Japan ; Ministry of Education, Culture, Sports, Science and Technology (MEXT) of Japan ; Russian Space Agency (Roskosmos) ; Russian Space Agency (Roskosmos) ; Deutsches Zentrum f ur Luft-und Raumfahrt (DLR) ; Deutsches Zentrum f ur Luft-und Raumfahrt (DLR) ; Max Planck Institute for Extraterrestrial Physics (MPE) ; Max Planck Institute for Extraterrestrial Physics (MPE) ; Max Planck Society ; Max Planck Society ; Space Telescope Science Institute under US Government grant ; Space Telescope Science Institute under US Government grant ; National Science Foundation ; National Science Foundation ; National Geographic Society ; National Geographic Society ; Sloan Foundation ; Sloan Foundation ; Samuel Oschin Foundation ; Samuel Oschin Foundation ; Eastman Kodak Corporation ; Eastman Kodak Corporation ; UK Science and Engineering Research Council ; UK Science and Engineering Research Council ; Chinese Academy of Sciences (CAS) President's International Fellowship Initiative (PIFI) ; Chinese Academy of Sciences (CAS) President's International Fellowship Initiative (PIFI) ; Ministry of Education, Culture, Sports, Science and Technology (MEXT) of Japan ; Ministry of Education, Culture, Sports, Science and Technology (MEXT) of Japan ; Russian Space Agency (Roskosmos) ; Russian Space Agency (Roskosmos) ; Deutsches Zentrum f ur Luft-und Raumfahrt (DLR) ; Deutsches Zentrum f ur Luft-und Raumfahrt (DLR) ; Max Planck Institute for Extraterrestrial Physics (MPE) ; Max Planck Institute for Extraterrestrial Physics (MPE) ; Max Planck Society ; Max Planck Society ; Space Telescope Science Institute under US Government grant ; Space Telescope Science Institute under US Government grant ; National Science Foundation ; National Science Foundation ; National Geographic Society ; National Geographic Society ; Sloan Foundation ; Sloan Foundation ; Samuel Oschin Foundation ; Samuel Oschin Foundation ; Eastman Kodak Corporation ; Eastman Kodak Corporation ; UK Science and Engineering Research Council ; UK Science and Engineering Research Council ; Chinese Academy of Sciences (CAS) President's International Fellowship Initiative (PIFI) ; Chinese Academy of Sciences (CAS) President's International Fellowship Initiative (PIFI) ; Ministry of Education, Culture, Sports, Science and Technology (MEXT) of Japan ; Ministry of Education, Culture, Sports, Science and Technology (MEXT) of Japan ; Russian Space Agency (Roskosmos) ; Russian Space Agency (Roskosmos) ; Deutsches Zentrum f ur Luft-und Raumfahrt (DLR) ; Deutsches Zentrum f ur Luft-und Raumfahrt (DLR) ; Max Planck Institute for Extraterrestrial Physics (MPE) ; Max Planck Institute for Extraterrestrial Physics (MPE) ; Max Planck Society ; Max Planck Society ; Space Telescope Science Institute under US Government grant ; Space Telescope Science Institute under US Government grant ; National Science Foundation ; National Science Foundation ; National Geographic Society ; National Geographic Society ; Sloan Foundation ; Sloan Foundation ; Samuel Oschin Foundation ; Samuel Oschin Foundation ; Eastman Kodak Corporation ; Eastman Kodak Corporation ; UK Science and Engineering Research Council ; UK Science and Engineering Research Council
源URL[http://ir.bao.ac.cn/handle/114a11/87772]  
专题中国科学院国家天文台
通讯作者Sugizaki, Mutsumi
作者单位1.Chinese Acad Sci, Natl Astron Observ, 20A Datun Rd, Beijing 100012, Peoples R China
2.RIKEN, 2-1 Hirosawa, Wako, Saitama 3510198, Japan
3.Nihon Univ, Dept Phys, Chiyoda Ku, 1-8 Kanda Surugadai, Tokyo 1018308, Japan
4.Ehime Univ, Dept Phys, 2-5 Bunkyocho, Matsuyama, Ehime 7908577, Japan
5.CALTECH, Cahill Ctr Astron & Astrophys, Pasadena, CA 91125 USA
6.Chuo Univ, Dept Phys, Bunkyo Ku, 1-13-27 Kasuga, Tokyo, Fukuoka 1128551, Japan
7.Aoyama Gakuin Univ, Dept Phys Sci, Chuo Ku, 5-10-1 Fuchinobe, Sagamihara, Kanagawa 2525258, Japan
8.Tokyo Inst Technol, Dept Phys, Meguro Ku, 2-12-1 Ookayama, Tokyo 1528551, Japan
9.Nihon Univ, Sch Dent Matsudo, 2-870-1 Sakaecho Nishi, Matsudo, Chiba 1018308, Japan
10.Penn State Univ, Dept Astron & Astrophys, 525 Davey Lab, University Pk, PA 16802 USA
推荐引用方式
GB/T 7714		 Sugizaki, Mutsumi,Mihara, Tatehiro,Kobayashi, Kohei,et al. Discovery of a new supergiant fast X-ray transient MAXI J0709-159 associated with the Be star LY Canis Majoris[J]. PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN,2022:12.
APA Sugizaki, Mutsumi.,Mihara, Tatehiro.,Kobayashi, Kohei.,Negoro, Hitoshi.,Shidatsu, Megumi.,...&Liu, Zhu.(2022).Discovery of a new supergiant fast X-ray transient MAXI J0709-159 associated with the Be star LY Canis Majoris.PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN,12.
MLA Sugizaki, Mutsumi,et al."Discovery of a new supergiant fast X-ray transient MAXI J0709-159 associated with the Be star LY Canis Majoris".PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN (2022):12.

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来源：国家天文台

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