GRB 210121A: A Typical Fireball Burst Detected by Two Small Missions

被引：23

作者：

Wang, Xiangyu Ivy ^{[1
]}

Zheng, Xutao ^{[2
]}

Xiao, Shuo ^{[3
,4
]}

Yang, Jun ^{[1
]}

Liu, Zi-Ke ^{[1
]}

Yang, Yu-Han ^{[1
]}

Zou, Jin-Hang ^{[5
]}

Zhang, Bin-Bin ^{[1
,6
,7
]}

Zeng, Ming ^{[2
,8
]}

Xiong, Shao-Lin ^{[3
]}

Feng, Hua ^{[9
]}

Song, Xin-Ying ^{[3
]}

Wen, Jiaxing ^{[2
]}

Xu, Dacheng ^{[2
]}

Chen, Guo-Yin ^{[1
,6
]}

Ni, Yang ^{[1
,6
]}

Zhang, Zi-Jian ^{[1
,6
]}

Wu, Yu-Xuan ^{[1
,6
]}

Cai, Ce ^{[3
,4
]}

Cang, Jirong ^{[9
]}

Deng, Yun-Wei ^{[1
,6
]}

Gao, Huaizhong ^{[2
]}

Kong, De-Feng ^{[10
]}

Huang, Yue ^{[3
]}

Li, Cheng-Kui ^{[3
]}

Li, Hong ^{[9
]}

Li, Xiao-Bo ^{[3
]}

Liang, En-Wei ^{[10
]}

Lin, Lin ^{[11
]}

Liu, Yihui ^{[2
]}

Long, Xiangyun ^{[2
]}

Lu, Dian ^{[2
,8
]}

Luo, Qi ^{[3
,4
]}

Ma, Yong-Chang ^{[1
,6
]}

Meng, Yan-Zhi ^{[1
,6
]}

Peng, Wen-Xi ^{[3
]}

Qiao, Rui ^{[3
]}

Song, Li-Ming ^{[3
]}

Tian, Yang ^{[2
,8
]}

Wang, Pei-Yuan ^{[12
]}

Wang, Ping ^{[3
]}

Wang, Xiang-Gao ^{[10
]}

Xu, Sheng ^{[1
,6
]}

Yang, Dongxin ^{[2
]}

Yin, Yi-Han ^{[13
]}

Zeng, Weihe ^{[2
]}

Zeng, Zhi ^{[2
,8
]}

Zhang, Ting-Jun ^{[6
,12
]}

Zhang, Yuchong ^{[14
]}

Zhang, Zhao ^{[1
,6
]}

机构：

[1] Nanjing Univ, Sch Astron & Space Sci, Nanjing 210093, Peoples R China

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

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

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

[5] Hebei Normal Univ, Coll Phys, Shijiazhuang 050024, Hebei, Peoples R China

[6] Nanjing Univ, Key Lab Modern Astron & Astrophys, Minist Educ, Nanjing, Peoples R China

[7] Univ Nevada, Dept Phys & Astron, Las Vegas, NV 89154 USA

[8] Tsinghua Univ, Key Lab Particle & Radiat Imaging, Minist Educ, Beijing 100084, Peoples R China

[9] Tsinghua Univ, Dept Astron, Beijing 100084, Peoples R China

[10] Guangxi Univ, Sch Phys Sci & Technol, Guangxi Key Lab Relativist Astrophys, Nanning 530004, Peoples R China

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

[12] Nanjing Univ, Kuang Yaming Honor Sch, Nanjing 210093, Peoples R China

[13] Nanjing Univ, Sch Phys, Nanjing 210093, Peoples R China

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

来源：

ASTROPHYSICAL JOURNAL | 2021年 / 922卷 / 02期

基金：

中国国家自然科学基金;

关键词：

GAMMA-RAY BURST; SPECTRAL LAGS; DOMINATED OUTFLOW; PEAK LUMINOSITY; GIANT FLARE; MAGNETAR; EVOLUTION; EMISSION; PHOTOSPHERES; 200415A;

D O I：

10.3847/1538-4357/ac29bd

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The Chinese CubeSat Mission, Gamma Ray Integrated Detectors (GRID), recently detected its first gamma-ray burst, GRB 210121A, which was jointly observed by the Gravitational wave high-energy Electromagnetic Counterpart All-sky Monitor (GECAM). This burst is confirmed by several other missions, including Fermi and Insight-HXMT. We combined multimission observational data and performed a comprehensive analysis of the burst's temporal and spectral properties. Our results show that the burst is relatively special in its high peak energy, thermal-like low-energy indices, and large fluence. By putting it to the E (p) -E ( gamma,iso) relation diagram with assumed distance, we found that this burst can be constrained at the redshift range of [0.3, 3.0]. The thermal spectral component is also confirmed by the direct fit of the physical models to the observed spectra. Interestingly, the physical photosphere model also constrained a redshift of z similar to 0.3 for this burst, which helps us to identify a host galaxy candidate at such a distance within the location error box. Assuming that the host galaxy is real, we found that the burst can be best explained by the photosphere emission of a typical fireball with an initial radius of r (0) similar to 3.2 x 10(7) cm.

引用

页数：10

共 1 条

[1] Deletion of small nuclear ribonucleoprotein polypeptide N (SNRPN) in Prader-Willi syndrome detected by fluorescence in situ hybridization: Two sibs with the typical phenotype without a cytogenetic deletion in chromosome 15q
Ishikawa, T
Kibe, T
Wada, Y
AMERICAN JOURNAL OF MEDICAL GENETICS, 1996, 62 (04): : 350 - 352

← 1 →