[vsnet-grb-info 27274] GECAM observations of SGR 1935+2154

GCN Circulars gcncirc at capella2.gsfc.nasa.gov
Sun Jan 31 22:57:12 JST 2021


TITLE:   GCN CIRCULAR
NUMBER:  29377
SUBJECT: GECAM observations of SGR 1935+2154
DATE:    21/01/31 13:56:15 GMT
FROM:    Shaolin Xiong at IHEP  <xiongsl at ihep.ac.cn>

P. Wang, C. Cai, X. Y. Zhao, X. B. Li, W. X. Peng, L. M. Song, S. L. Xiong,
M. Y. Ge, S. J. Zheng, Y. Huang, X. Ma, S. Xiao, P. Zhang, B. X. Zhang,
Z. H. An, C. Chen, G. Chen, W. Chen, M. Gao, K. Gong, D. Y. Guo,
J. J. He, B. Li, C. Li, C. Y. Li, J. H. Li, Q. X. Li,
X. Q. Li, Y. G. Li, X. H. Liang, J. Y. Liao, J. C. Liu,
X. J. Liu, Y. Q. Liu, F. J. Lu, Q. Luo, G. Ou, R. Qiao,
D. L. Shi, J. Y. Shi, X. Y. Song, G. X. Sun, X. L. Sun,
Y. L. Tuo, C. W. Wang, J. Z. Wang, P. Wang, X. Y. Wen, Y. B. Xu,
Y. P. Xu, W. C. Xue, S. Yang, M. Yao, Q. B. Yi, C. Y. Zhang,
D. L. Zhang, Fan Zhang, Fei Zhang, H. M. Zhang, K. Zhang, S. N. Zhang,
Y. Q. Zhang, Z. Zhang, S. Y. Zhao, Y. Zhao, C. Zheng, X. Zhou (IHEP),
report on behalf of GECAM team:

Since the first report of a bright burst from SGR 1935+2154 (Y. Huang et 
al.,
GCN 29363), GECAM has detected a series of bursts probably from this source,
either from in-flight trigger or from ground search of the data.
Here is the list of these bursts:

TrigTime(UTC)
2021-01-27T06:50:20.750
2021-01-29T14:17:25.000
2021-01-29T17:51:00.850
2021-01-30T08:39:53.850
2021-01-30T09:46:01.050
2021-01-30T17:40:54.800

Locations of all these bursts are consistent with SGR 1935+2154.

Please note that all GECAM results here are preliminary. The final analysis
will be published in journal papers or GECAM online catalog.

Gravitational wave high-energy Electromagnetic Counterpart All-sky Monitor
(GECAM) mission consists of two small satellites (GECAM-A and GECAM-B) in
Low Earth Orbit (600 km, 29 deg), launched on Dec 10, 2020 (Beijing Time),
which was funded by the Chinese Academy of Sciences (CAS).




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