CORC

浏览/检索结果: 共121条,第1-10条 帮助

已选(0)清除 条数/页:   排序方式:
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:46/0  |  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).  
Detection of Flare Multiperiodic Pulsations in Mid-ultraviolet Balmer Continuum, Lyl Hard X-Ray, and Radio Emissions Simultaneously 期刊论文
The Astrophysical Journal, 2021, 卷号: 921, 页码: 179
作者:  HXMT
收藏  |  浏览/下载:14/0  |  提交时间:2022/02/08
The Hyperluminous, Dust-obscured Quasar W2246-0526 at z=4.6: Detection of Parsec-scale Radio Activity 期刊论文
The Astrophysical Journal Letters, 2020, 卷号: 905, 期号: 2, 页码: 7
作者:  Fan, Lulu;  Chen W(陈文);  An, Tao;  Xie, Fu-Guo;  Han YK(韩云坤)
收藏  |  浏览/下载:86/0  |  提交时间:2021/01/25
Optical Emission Spectroscopy Diagnostics of Atmospheric Pressure Radio Frequency Ar-H-2 Inductively Coupled Thermal Plasma 期刊论文
IEEE TRANSACTIONS ON PLASMA SCIENCE, 2020, 卷号: 48, 期号: 10, 页码: 3621-3628
作者:  Zhang, Haibao;  Yuan, Fangli;  Chen, Qiang
收藏  |  浏览/下载:10/0  |  提交时间:2021/03/29
Wide Bandwidth Observations of Pulsars C, D, and J in 47 Tucanae 期刊论文
ASTROPHYSICAL JOURNAL LETTERS, 2019, 卷号: 885, 期号: 2, 页码: L37
作者:  Zhang, Lei;  Hobbs, George;  Manchester, Richard N.;  Li, Di;  Wang, Pei
收藏  |  浏览/下载:18/0  |  提交时间:2020/03/12
Wide Bandwidth Observations of Pulsars C, D, and J in 47 Tucanae 期刊论文
The Astrophysical Journal Letters, 2019, 卷号: 885, 期号: 2
作者:  Zhang,Lei;  Hobbs,George;  Manchester,Richard N.;  Li,Di;  Wang,Pei
收藏  |  浏览/下载:15/0  |  提交时间:2020/03/10
Extended Catalog of Winged or X-shaped Radio Sources from the FIRST Survey 期刊论文
ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, 2019, 卷号: 245, 期号: 1, 页码: 17
作者:  Yang, Xiaolong;  Joshi, Ravi;  Gopal-Krishna;  An, Tao;  Ho, Luis C.
收藏  |  浏览/下载:27/0  |  提交时间:2020/03/12
Localized Microwave and EUV Bright Structures in an Eruptive Prominence 期刊论文
The Astrophysical Journal, 2019, 卷号: 874, 期号: 2
作者:  Huang,Jing;  Tan,Baolin;  Masuda,Satoshi;  Cheng,Xin;  Kumar Bisoi,Susanta
收藏  |  浏览/下载:9/0  |  提交时间:2020/03/10
Jet-powered Outflows in Supermassive Black Hole Binary Candidate SDSS J1048+0055 期刊论文
ASTROPHYSICAL JOURNAL, 2019, 卷号: 873, 期号: 1, 页码: 7
作者:  Jaiswal, Sumit;  Mohan, Prashanth;  An, Tao;  Frey, Sandor
收藏  |  浏览/下载:60/0  |  提交时间:2019/04/19
Jet-powered Outflows in Supermassive Black Hole Binary Candidate SDSS J1048+0055 期刊论文
ASTROPHYSICAL JOURNAL, 2019, 卷号: 873, 期号: 1, 页码: 7
作者:  Jaiswal, Sumit;  Mohan, Prashanth;  An, Tao;  Frey, Sandor
收藏  |  浏览/下载:47/0  |  提交时间:2019/05/23


©版权所有 ©2017 CSpace - Powered by CSpace