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

被引：15

作者：

Xiao, G. C. ^{[1
,2
]}

Lu, Yu ^{[1
]}

Ma, X. ^{[1
]}

Ge, M. Y. ^{[1
]}

Yan, L. L. ^{[3
]}

Li, Z. J. ^{[4
]}

Tuo, Y. L. ^{[1
,2
]}

Zhang, Y. ^{[1
,2
]}

Zhang, W. ^{[1
,2
]}

Liu, H. X. ^{[1
,2
]}

Zhou, D. K. ^{[1
,2
]}

Zhang, L. ^{[1
]}

Bu, Q. C. ^{[1
]}

Cao, X. L. ^{[1
]}

Jiang, W. C. ^{[1
]}

Chen, Y. P. ^{[1
]}

Zhang, S. ^{[1
,2
]}

Lu, F. J. ^{[1
,2
]}

Chen, L. ^{[5
]}

Qu, J. L. ^{[1
,2
]}

Song, L. M. ^{[1
,2
]}

Zhang, S. N. ^{[1
,2
]}

Zhuang, R. L. ^{[6
]}

Shang, R. C. ^{[7
]}

Jin, Y. J. ^{[6
]}

机构：

[1] Chinese Acad Sci, Inst High Energy Phys, Key Lab Particle Astrophys, Beijing 100049, Peoples R China

[2] Univ Chinese Acad Sci, Beijing 100049, Peoples R China

[3] Anhui Jianzhu Univ, Sch Math & Phys, Hefei 230601, Anhui, Peoples R China

[4] Hebei Univ Engn, Sch Architecture & Art, Handan 056038, Peoples R China

[5] Beijing Normal Univ, Dept Astron, Beijing 100875, Peoples R China

[6] Tsinghua Univ, Dept Engn Phys, Beijing 100084, Peoples R China

[7] Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China

来源：

JOURNAL OF HIGH ENERGY ASTROPHYSICS | 2019年 / 24卷

基金：

中国国家自然科学基金;

关键词：

Accretion; accretion disks; Black hole physics; X-rays: binaries: Swift J1658.2-4242; QUASI-PERIODIC OSCILLATIONS; X-RAY-PROPERTIES; PHASE LAGS; CENTROID FREQUENCY; ENERGY-DEPENDENCE; GX; 339-4; VARIABILITY; EVOLUTION; EMISSION; EJECTION;

D O I：

10.1016/j.jheap.2019.09.005

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

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 (0.8-3.5Hz) and Insight-HXMT (1-1.6Hz) 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 LenseThirring 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 6.68Hz. This independence follows the same trend as the high inclination galactic black hole binaries such as MAXI J1659-152. (C) 2019 Elsevier B.V. All rights reserved.

引用

页码：30 / 40

页数：11

共 22 条

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