GECAM Detection of a Bright Type I X-Ray Burst from 4U 0614+09: Hint for Its Spin Frequency at 413 Hz

被引：30

作者：

Chen, Yu-Peng ^{[1
]}

Li, Jian ^{[2
,3
]}

Xiong, Shao-Lin ^{[1
]}

Ji, Long ^{[4
]}

Zhang, Shu ^{[1
]}

Peng, Wen-Xi ^{[1
]}

Qiao, Rui ^{[1
]}

Li, Xin-Qiao ^{[1
]}

Wen, Xiang-Yang ^{[1
]}

Song, Li-Ming ^{[1
]}

Zheng, Shi-Jie ^{[1
]}

Song, Xin-Ying ^{[1
]}

Zhao, Xiao-Yun ^{[1
]}

Huang, Yue ^{[1
]}

Lu, Fang-Jun ^{[1
]}

Zhang, Shuang-Nan ^{[1
]}

Xiao, Shuo ^{[1
,5
]}

Cai, Ce ^{[1
,5
]}

An, Zheng-Hua ^{[1
]}

Chang, Zhi ^{[1
]}

Chen, Can ^{[1
,5
]}

Chen, Gang ^{[1
]}

Chen, Wei ^{[1
]}

Dai, Guang-Qi ^{[1
]}

Du, Yan-Qi ^{[1
,9
]}

Gao, Min ^{[1
]}

Gong, Ke ^{[1
]}

Guo, Dong-Ya ^{[1
]}

Guo, Zhi-Wei ^{[1
,13
]}

He, Jian-Jian ^{[1
]}

Li, Bin ^{[1
]}

Li, Chao ^{[1
,7
,8
]}

Li, Chao-Yang ^{[1
,6
]}

Li, Gang ^{[1
]}

Li, Jian-Hui ^{[1
,5
]}

Li, Lu ^{[1
]}

Li, Qing-Xin ^{[1
,7
,8
]}

Li, Xiao-Bo ^{[1
]}

Li, Yan-Guo ^{[1
]}

Liang, Jing ^{[1
,9
]}

Liang, Xiao-Hua ^{[1
]}

Liao, Jin-Yuan ^{[1
]}

Liu, Jia-Cong ^{[1
]}

Liu, Xiao-Jing ^{[1
]}

Liu, Ya-Qing ^{[1
]}

Luo, Qi ^{[1
,5
]}

Ma, Xiang ^{[1
]}

Meng, Bin ^{[1
]}

Ou, Ge ^{[1
]}

Shi, Dong-Li ^{[1
,9
]}

机构：

[1] Chinese Acad Sci, Inst High Energy Phys, Key Lab Particle Astrophys, 19B Yuquan Rd, Beijing 100049, Peoples R China

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

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

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

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

[6] China West Normal Univ, Phys & Space Sci Coll, Nanchong 637002, Peoples R China

[7] Xiangtan Univ, Key Lab Stellar & Interstellar Phys, Xiangtan 411105, Hunan, Peoples R China

[8] Xiangtan Univ, Dept Phys, Xiangtan 411105, Hunan, Peoples R China

[9] Southwest Jiaotong Univ, Sch Comp & Artificial Intelligence, Chengdu 611756, Peoples R China

[10] Changchun Univ Sci & Technol, Changchun 130022, Jilin, Peoples R China

[11] Qufu Normal Univ, Coll Phys & Engn, Qufu 273165, Shandong, Peoples R China

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

[13] Hebei Univ, Coll Phys Sci & Technol, Baoding City 071002, Hebei, Peoples R China

[14] Cent China Normal Univ, Inst Astrophys, Wuhan 430079, Peoples R China

来源：

ASTROPHYSICAL JOURNAL | 2022年 / 935卷 / 01期

基金：

中国国家自然科学基金; 国家重点研发计划;

关键词：

NEUTRON-STAR; DISCOVERY; 4U-0614+09;

D O I：

10.3847/1538-4357/ac7ff8

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

One month after launching the Gravitational Wave High-energy Electromagnetic Counterpart All-sky Monitor, a bright thermonuclear X-ray burst from 4U 0614+09 was observed on 2021 January 24. We report the time-resolved spectroscopy of the burst and a hint of burst oscillation at 413 Hz with a fractional amplitude similar to 2.0% (rms). This coincides with the burst oscillation previously discovered with Swift/Burst Alert Telescope (Strohmayer et al. 2008), and therefore supports the spin frequency of this source. This burst is a bright one in the normal bursts detected from 4U 0614+09, which leads to an upper limit of distance estimation of 3.1 kpc. The folded light curve during the burst oscillation shows a sinusoidal structure, which is consistent with previous observations.

引用

页数：6

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