Evolution of X-Ray Properties of MAXI J1535-571: Analysis with the TCAF Solution

被引：28

作者：

Shang, J. -R. ^{[1
]}

Debnath, D. ^{[2
]}

Chatterjee, D. ^{[2
]}

Jana, A. ^{[2
]}

Chakrabarti, S. K. ^{[2
,3
]}

Chang, H. -K. ^{[1
,4
]}

Yap, Y. -X. ^{[1
]}

Chiu, C. -L. ^{[1
]}

机构：

[1] Natl Tsing Hua Univ, Inst Astron, Hsinchu 30013, Taiwan

[2] Indian Ctr Space Phys, 43 Chalantika,Garia St Rd, Kolkata 700084, India

[3] SN Bose Natl Ctr Basic Sci, Kolkata 700106, India

[4] Natl Tsing Hua Univ, Dept Phys, Hsinchu 30013, Taiwan

来源：

ASTROPHYSICAL JOURNAL | 2019年 / 875卷 / 01期

关键词：

accretion; accretion disks; shock waves; stars: black holes; stars: individual (MAXI J1535-571); X-rays: binaries; ACCRETION DISKS; SPECTRAL PROPERTIES; BLACK-HOLES; COMPTONIZATION; OSCILLATION; RADIATION; OUTBURST; INDEX; FLOWS; MASS;

D O I：

10.3847/1538-4357/ab0c1e

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present spectral and timing properties of the newly discovered X-ray transient source, MAXI J1535-571, which is believed to be a Galactic X-ray binary containing a black hole candidate (BHC) as the primary object. Since its discovery on 2017 September 2, it has been monitored regularly in multi-wavelength bands by several satellites. We use archival data of the Swift (XRT and BAT) and MAXI (GSC) satellite instruments to study accretion flow dynamics of the source during the outburst. During its outburst, the source became very bright in the sky with a maximum observed flux of 5 Crab in the 2-10 keV GSC band. Similar to other transient BHCs, it also shows signatures of low-frequency quasi-periodic oscillations (QPOs) during the outburst. Spectral data of different instruments are fitted with the transonic flow, solution-based two-component advective flow model fits file to find the direct accretion flow parameters. The evolution of spectral states and their transitions are understood from the model-fitted physical flow parameters and nature of QPOs. We also estimate the probable mass of the black hole from our spectral analysis as 7.9-9.9. M-circle dot or 8.9 +/- 1.0 M-circle dot

引用

页数：9

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