Spectral and timing analysis of the frequent flares experienced by AT2019wey

doi:10.1016/j.jheap.2024.04.004

	Spectral and timing analysis of the frequent flares experienced by AT2019wey
	Yang, Zi-Xu 4; Zhang, Liang 3; Bu, Qing-Cui 2; Ma, Rui-Can 3; Huang, Yue 3; Liu, He-Xin 3; Yu, Wei 3; Wang, Peng-Ju 3; Tao, Lian 3; Qu, Jin-Lu 3
刊名	JOURNAL OF HIGH ENERGY ASTROPHYSICS
	2024-06
卷号	42
关键词	Black hole physics X-rays: binaries
ISSN号	2214-4048
DOI	10.1016/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
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关键词	QUASI-PERIODIC OSCILLATIONS ; X-RAY VARIABILITY ; BLACK-HOLE BINARIES ; GX 339-4 ; MAXI J1820+070 ; NOISE ; BEHAVIOR ; MODEL ; EVOLUTION ; JETS
WOS研究方向	Astronomy & Astrophysics
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:001221736800001
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]
内容类型	期刊论文
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.,...&Zhao, Qing-Chang.(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).