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Ordered magnetic fields around the 3C 84 central black hole 期刊论文
ASTRONOMY & ASTROPHYSICS, 2024, 卷号: 682
作者:  Paraschos, G. F.;  Kim, J.-Y.;  Wielgus, M.;  Röder, J.;  Krichbaum, T. P.
收藏  |  浏览/下载:10/0  |  提交时间:2024/04/15
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:45/0  |  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).  
An agile very low frequency radio spectrum explorer 期刊论文
Research in Astronomy and Astrophysics, 2021, 卷号: 21, 期号: 4, 页码: 139-148
作者:  Chen,Linjie;  Yan,Yihua;  Fan,Qiuxiang;  Geng,Lihong;  Bisoi, Susanta Kumar
收藏  |  浏览/下载:0/0  |  提交时间:2024/06/13
An ALMA survey of the brightest sub-millimetre sources in the SCUBA-2-COSMOS field 期刊论文
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2020, 卷号: 495, 期号: 3, 页码: 3409-3430
作者:  Simpson, J. M.;  Smail, Ian;  Dudzeviciute, U.;  Matsuda, Y.;  Hsieh, B-C
收藏  |  浏览/下载:40/0  |  提交时间:2020/08/03
Variability in extragalactic class I methanol masers: new maser components towards NGC 4945 and NGC 253 期刊论文
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2020, 卷号: 491, 期号: 4, 页码: 4642-4655
作者:  McCarthy, T. P.;  Ellingsen, S. P.;  Breen, S. L.;  Voronkov, M. A.;  Chen, X.
收藏  |  浏览/下载:15/0  |  提交时间:2020/11/09
Variability in extragalactic class I methanol masers: new maser components towards NGC 4945 and NGC 253 期刊论文
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2020, 卷号: 491, 期号: 4, 页码: 4642-4655
作者:  McCarthy, T. P.;  Ellingsen, S. P.;  Breen, S. L.;  Voronkov, M. A.;  Chen, X.
收藏  |  浏览/下载:14/0  |  提交时间:2021/09/26
The Giant Radio Array for Neutrino Detection (GRAND): Science and design 期刊论文
SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY, 2020, 卷号: 63, 期号: 1, 页码: 43
作者:  Alvarez-Muniz, Jaime;  Batista, Rafael Alves;  Balagopal, Aswathi, V;  Bolmont, Julien;  Bustamante, Mauricio
收藏  |  浏览/下载:16/0  |  提交时间:2021/09/26
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
Multifrequency Study of GHz-peaked Spectrum Sources 期刊论文
ASTROPHYSICAL BULLETIN, 2019, 卷号: 74, 期号: 4, 页码: 348-364
作者:  Sotnikova, Yu, V;  Mufakharov, T., V;  Majorova, E. K.;  Mingaliev, M. G.;  Udovitskii, R. Yu
收藏  |  浏览/下载:1/0  |  提交时间:2021/09/26
A high-resolution self-consistent whole sky foreground model 期刊论文
SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY, 2019, 卷号: 62, 期号: 8, 页码: 13
作者:  Huang, QiZhi;  Wu, FengQuan;  Chen, XueLei
收藏  |  浏览/下载:32/0  |  提交时间:2020/03/10


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