NICER, NuSTAR, and Insight-HXMT Views to Black Hole X-Ray Binary SLX 1746-331

被引：4

作者：

Peng, Jing-Qiang ^{[1
,2
]}

Zhang, Shu ^{[1
]}

Shui, Qing-Cang ^{[1
,2
]}

Zhang, Shuang-Nan ^{[1
,2
]}

Chen, Yu-Peng ^{[1
]}

Kong, Ling-Da ^{[3
]}

Yu, Zhuo-Li ^{[1
]}

Ji, Long ^{[4
]}

Wang, Peng-Ju ^{[3
]}

Ge, Ming-Yu ^{[1
]}

Qu, Jin-Lu ^{[1
]}

Tao, Lian ^{[1
]}

Chang, Zhi ^{[1
]}

Li, Jian ^{[5
,6
]}

Li, Zhao-sheng ^{[7
]}

Yan, Zhe ^{[2
,8
,9
,10
]}

机构：

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

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

[3] Eberhard Karls Univ Tubingen, Inst Astron & Astrophys, Kepler Ctr Astro & Particle Phys, Sand 1, D-72076 Tubingen, Germany

[4] Sun Yat Sen Univ, Sch Phys & Astron, Zhuhai 519082, Peoples R China

[5] Univ Sci & Technol China, Dept Astron, CAS Key Lab Res Galaxies & Cosmol, Hefei 230026, Peoples R China

[6] Univ Sci & Technol China, Sch Astron & Space Sci, Hefei 230026, Peoples R China

[7] Xiangtan Univ, Key Lab Stars & Interstellar Medium, Xiangtan 411105, Hunan, Peoples R China

[8] Chinese Acad Sci, Yunnan Observ, Kunming 650216, Peoples R China

[9] Chinese Acad Sci, Key Lab Struct & Evolut Celestial Objects, Kunming 650216, Peoples R China

[10] Chinese Acad Sci, Ctr Astron Megasci, Beijing 100012, Peoples R China

来源：

ASTROPHYSICAL JOURNAL LETTERS | 2024年 / 965卷 / 02期

基金：

中国国家自然科学基金; 国家重点研发计划;

关键词：

HARD STATE; GX; 339-4; ACCRETION; EVOLUTION; OUTBURST; MODEL; DISC; INSTABILITY; EMISSION; BEHAVIOR;

D O I：

10.3847/2041-8213/ad3640

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We study the spectral and temporal properties of the black hole (BH) X-ray transient binary SLX 1746-331 during the 2023 outburst with NICER, NuSTAR, and Insight-HXMT observations. Through the joint fitting of the spectra from NICER, NuSTAR, and Insight-HXMT, the spin and inclination angles are measured for the first time as 0.85 +/- 0.03 and 53 degrees +/- 0.degrees 5, respectively. Accordingly, the mass of the compact star is updated from the previous lower limit of 3.3 +/- 2.1M circle dot to 5.5 +/- 3.6M circle dot, which is consistent with 5.2 +/- 4.5M circle dot measured with an empirical mass-luminosity correlation of BH samples. With more NICER observations covering the later decay of the outburst, we confirm that the entire outburst was dominated by the disk emissions, and the thermal spectrum follows F proportional to T in 3.974 +/- 0.003 , until a luminosity of over 2 magnitudes lower than the maximum of the outburst.

引用

页数：7

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