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Spectral and timing analysis of the frequent flares experienced by AT2019wey

文献类型：期刊论文

作者Yang, Zi-Xu4; Zhang, Liang3; Bu, Qing-Cui2; Ma, Rui-Can3; Huang, Yue3; Liu, He-Xin3; Yu, Wei3; Wang, Peng-Ju3; Tao, Lian3; Qu, Jin-Lu3
刊名JOURNAL OF HIGH ENERGY ASTROPHYSICS
出版日期2024-06
卷号42
关键词Black hole physics X-rays: binaries
ISSN号2214-4048
DOI10.1016/j.jheap.2024.04.004
产权排序第4完成单位
文献子类Article
英文摘要In this paper, we compare the timing and spectral properties for those frequent flares observed in AT2019wey from 2020 August to 2023 March. We conducted a comparative analysis of the evolution of timing properties, specifically the continuum fractional rms, broadband noise characteristic frequency, and spectral parameters, in relation to the hardness ratio and count rates for all 10 flares. Based on the timing and spectral properties, we have identified four flares entering high soft state and six flares not. For all flares, the continuum fractional rms decreases with increasing count rates whereas characteristic frequency of broadband noise behaves in the opposite way. Meanwhile, the disc temperature T-in and powerlaw index Gamma consistently increases throughout all flares. During the 10 flares, the luminosity of accretion disc does not follow the canonical L similar to T-4 relation which implicates a moving disc inner radius.
学科主题天文学 ; 太阳与太阳系
URL标识查看原文
出版地RADARWEG 29, 1043 NX AMSTERDAM, NETHERLANDS
WOS关键词QUASI-PERIODIC OSCILLATIONS ; X-RAY VARIABILITY ; BLACK-HOLE BINARIES ; GX 339-4 ; MAXI J1820+070 ; NOISE ; BEHAVIOR ; MODEL ; EVOLUTION ; JETS
资助项目NASA through the NICER mission; National Key R&D Program of China[2021YFA0718500]; National Natural Science Foundation of China (NSFC)[12203052]; National Natural Science Foundation of China (NSFC)[U1838201]; National Natural Science Foundation of China (NSFC)[U1838202]; National Natural Science Foundation of China (NSFC)[1 1733009]; National Natural Science Foundation of China (NSFC)[11673023]; National Natural Science Foundation of China (NSFC)[U1938102]; National Natural Science Foundation of China (NSFC)[U2038104]; National Natural Science Foundation of China (NSFC)[U2031205]; National Natural Science Foundation of China (NSFC)[12233002]; CAS Pioneer Hundred Talent Program[Y8291130K2]; Scientific and Technological innovation project of IHEP[Y7515570U1]; International Partnership Program of Chinese Academy of Sciences[113111KYSB20190020]
WOS研究方向Astronomy & Astrophysics
语种英语
WOS记录号WOS:001221736800001
出版者ELSEVIER
资助机构NASA through the NICER mission ; National Key R&D Program of China[2021YFA0718500] ; National Natural Science Foundation of China (NSFC)[12203052, U1838201, U1838202, 1 1733009, 11673023, U1938102, U2038104, U2031205, 12233002] ; CAS Pioneer Hundred Talent Program[Y8291130K2] ; Scientific and Technological innovation project of IHEP[Y7515570U1] ; International Partnership Program of Chinese Academy of Sciences[113111KYSB20190020]
版本出版稿
源URL[http://ir.ynao.ac.cn/handle/114a53/27195]  
专题云南天文台_高能天体物理研究组
作者单位1.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650216, China
2.Institut für Astronomie und Astrophysik, Kepler Center for Astro and Particle Physics, Eberhard Karls Universität, Sand 1, D-72076 Tübingen, Germany;
3.Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China;
4.School of Physics and Optoelectronic Engineering, Shandong University of Technology, Zibo 255000, China;
推荐引用方式
GB/T 7714		 Yang, Zi-Xu,Zhang, Liang,Bu, Qing-Cui,et al. Spectral and timing analysis of the frequent flares experienced by AT2019wey[J]. JOURNAL OF HIGH ENERGY ASTROPHYSICS,2024,42.
APA Yang, Zi-Xu.,Zhang, Liang.,Bu, Qing-Cui.,Ma, Rui-Can.,Huang, Yue.,...&Jin P.(2024).Spectral and timing analysis of the frequent flares experienced by AT2019wey.JOURNAL OF HIGH ENERGY ASTROPHYSICS,42.
MLA Yang, Zi-Xu,et al."Spectral and timing analysis of the frequent flares experienced by AT2019wey".JOURNAL OF HIGH ENERGY ASTROPHYSICS 42(2024).

入库方式： OAI收割

来源：云南天文台

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