Timing analysis of Swift J1658.2-4242's outburst in 2018 with Insight-HXMT, NICER and AstroSat

doi:10.1016/j.jheap.2019.09.005

CORC > 高能物理研究所 > 中国科学院高能物理研究所 > 硬X射线调制望远镜卫星

	Timing analysis of Swift J1658.2-4242's outburst in 2018 with Insight-HXMT, NICER and AstroSat
	HXMT
刊名	Journal of High Energy Astrophysics
	2019
卷号	24 页码:30-40
关键词	Accretion accretion disks Black hole physics X-rays: binaries: Swift J1658.2-4242 Astrophysics - High Energy Astrophysical Phenomena Abstract: We present the observational results from a detailed timing analysis of the black hole candidate Swift J1658.2-4242 during its 2018 outburst with the observations of Hard X-ray Modulation Telescope (Insight-HXMT), Neutron Star Interior Composition Explorer (NICER) and AstroSat in 0.1-250 keV. The evolution of intensity, hardness and integrated fractional root mean square (rms) observed by Insight-HXMT and NICER are presented in this paper. Type-C quasi-periodic oscillations (QPOs) observed by NICER (0.8-3.5 Hz) and Insight-HXMT (1-1.6 Hz) are also reported in this work. The features of the QPOs are analyzed with an energy range of 0.5-50 keV. The relations between QPO frequency and other characteristics such as intensity, hardness and QPO rms are carefully studied. The timing and spectral properties indicate that Swift J1658.2-4242 is a black hole binary system. Besides, the rms spectra of the source calculated from the simultaneous observation of Insight-HXMT, NICER and AstroSat support the Lense-Thirring origin of the QPOs. The relation between QPO phase lag and the centroid frequency of Swift J1658.2-4242 reveals a near zero constant when < 4Hz and a soft phase lag at 6.68 Hz. This independence follows the same trend as the high inclination galactic black hole binaries such as MAXI J1659-152.
ISSN号	2214-4048
DOI	10.1016/j.jheap.2019.09.005
文献子类	Journal Article
语种	英语
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/291329]
专题	硬X射线调制望远镜卫星
推荐引用方式 GB/T 7714	HXMT. Timing analysis of Swift J1658.2-4242's outburst in 2018 with Insight-HXMT, NICER and AstroSat[J]. Journal of High Energy Astrophysics,2019,24:30-40.
APA	HXMT.(2019).Timing analysis of Swift J1658.2-4242's outburst in 2018 with Insight-HXMT, NICER and AstroSat.Journal of High Energy Astrophysics,24,30-40.
MLA	HXMT."Timing analysis of Swift J1658.2-4242's outburst in 2018 with Insight-HXMT, NICER and AstroSat".Journal of High Energy Astrophysics 24(2019):30-40.