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浏览/检索结果: 共9条，第1-9条 帮助 已选(0)清除 条数/页：5101520253035404550556065707580859095100   排序方式：请选择作者升序作者降序题名升序题名降序发表日期升序发表日期降序提交时间升序提交时间降序 Scintillation Arc from FRB 20220912A 期刊论文 SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY, 2024, 卷号: 67, 期号: 1 作者:  Wu, Zi-Wei;  Main, Robert A.;  Zhu, Wei-Wei;  Zhang, Bing;  Jiang, Peng 收藏  |  浏览/下载：6/0  |  提交时间：2024/03/29 fast radio burst  scintillation  FRB 20220912A   Detection of two bright radio bursts from magnetar SGR 1935 + 2154 期刊论文 Nature Astronomy, 2021, 卷号: 5, 页码: 414 作者:  Kirsten, F.;  Snelders, M. P.;  Jenkins, M.;  Nimmo, K.;  van den Eijnden, J. 收藏  |  浏览/下载：42/0  |  提交时间：2021/11/18 Astrophysics - High Energy Astrophysical Phenomena  Abstract: Fast radio bursts are millisecond-duration, bright radio signals (fluence 0.1-100 Jy ms) emitted from extragalactic sources of unknown physical origin. The recent CHIME/FRB and STARE2 detection of an extremely bright (fluence ~MJy ms) radio burst from the Galactic magnetar SGR 1935+2154 supports the hypothesis that (at least some) fast radio bursts are emitted by magnetars at cosmological distances. In follow-up observations totalling 522.7 h on source, we detect two bright radio bursts with fluences of 112 ± 22 Jy ms and 24 ± 5 Jy ms, respectively. Both bursts appear to be affected by interstellar scattering and we measure significant linear and circular polarization for the fainter burst. The bursts are separated in time by ~1.4 s, suggesting a non-Poissonian, clustered emission processsimilar to those seen in some repeating fast radio bursts. Together with the burst reported by CHIME/FRB and STARE2, as well as a much fainter burst seen by FAST (fluence 60 mJy ms), our observations demonstrate that SGR 1935+2154 can produce bursts with apparent energies spanning roughly seven orders of magnitude, and that the burst rate is comparable across this range. This raises the question of whether these four bursts arise from similar physical processes, and whether the fast radio burst population distribution extends to very low energies (~1030 erg, isotropic equivalent).   Insight-HXMT's continued observation plan for SGR J1935+2154 ATEL 2020 作者:  Zhang, S. -N.;  Li, X. -B.;  Li, C. -K.;  Ge, M. -Y.;  Xiong, S. -L. 收藏  |  浏览/下载：36/0  |  提交时间：2020/07/03 X-ray  Gamma Ray  Soft Gamma-ray Repeater  Fast Radio Burst   Geocentric time correction for Insight-HXMT detection of the x-ray counterpart of the FRB by CHIME and STARE2 from SGR 1935+2154 ATEL 2020 作者:  Zhang, S. -N.;  Li, C. -K.;  Zheng, S. -J.;  Li, X. -B.;  Tuo, Y. -L. 收藏  |  浏览/下载：79/0  |  提交时间：2020/07/03 X-ray  Gamma Ray  Soft Gamma-ray Repeater  Fast Radio Burst   Insight-HXMT X-ray and hard X-ray upper limits to the radio burst detected by FAST from SGR 1935+2154 ATEL 2020 作者:  Li, C. K.;  Tuo, Y. L.;  Ge, M. Y.;  Li, X. B.;  Liao, J. Y. 收藏  |  浏览/下载：47/0  |  提交时间：2020/07/03 X-ray  Gamma Ray  Soft Gamma-ray Repeater  Fast Radio Burst   Insight-HXMT X-ray and hard X-ray detection of the double peaks of the Fast Radio Burst from SGR 1935+2154 ATEL 2020 作者:  Zhang, S. -N.;  Xiong, S. -L.;  Li, C. -K.;  Li, X. -B.;  Tuo, Y. -L. 收藏  |  浏览/下载：65/0  |  提交时间：2020/07/03 X-ray  Gamma Ray  Soft Gamma-ray Repeater  Fast Radio Burst   Update on Insight-HXMT detection of a bright short x-ray counterpart of the Fast Radio Burst from SGR 1935+2154: No intrinsic delay between radio and X-ray flares ATEL 2020 作者:  Zhang, S. -N.;  Zhang, B. and Lu, W. -B. 收藏  |  浏览/下载：36/0  |  提交时间：2020/07/03 X-ray  Gamma Ray  Soft Gamma-ray Repeater  Fast Radio Burst   Insight-HXMT detection of a bright short x-ray counterpart of the Fast Radio Burst from SGR 1935+2154 ATEL 2020 作者:  Zhang, S. -N.;  Tuo, Y. -L.;  Xiong, S. -L.;  Li, C. -K.;  Xiao, S. 收藏  |  浏览/下载：65/0  |  提交时间：2020/07/03 X-ray  Gamma Ray  Soft Gamma-ray Repeater  Fast Radio Burst   The Remnant of Neutron Star-White Dwarf Merger and the Repeating Fast Radio Bursts 期刊论文 International Journal of Astronomy and Astrophysics, 2020, 卷号: 10, 期号: 1, 页码: 28-38 作者:  Liu, Xiang 收藏  |  浏览/下载：6/0  |  提交时间：2021/06/25 Pulsar  Neutron Star  White Dwarf  Merger  Magnetic Field  Magnetar  Fast Radio Burst