supported by the National Key R&D Program of China(grant No.2023YFE0117200);the National Natural Science Foundation of China(NSFC,grant Nos.12373041 and 12373051);special funding for Guangxi distinguished professors(Bagui Xuezhe);the Guangxi Talent Program(Highland of Innovation Talents)。
We present an analysis of the Imaging X-ray Polarimetry Explorer observation from a newly discovered transient source:Swift J151857.0-572147.The obtained polarization degree(PD)and angle are 0.3%±0.3% and -24°±26°...
supported by the National Key Research and Development Program of China(2022YFF0711500);National Natural Science Foundation of China(NSFC,grant Nos.12373110,12273077,12103070,and 12333004);the Strategic Priority Research Program of the Chinese Academy of Sciences(grant Nos.XDA15310300,XDB0550200,XDB0550100,and XDB0550000);supported by China National Astronomical Data Center(NADC);Chinese Virtual Observatory(China-VO);supported by Astronomical Big Data Joint Research Center,cofounded by National Astronomical Observatories,Chinese Academy of Sciences and Alibaba Cloud。
X-ray observations play a crucial role in time-domain astronomy.The Einstein Probe(EP),a recently launched X-ray astronomical satellite,emerges as a forefront player in the field of time-domain astronomy and high-ener...
supported by International Partnership Program of Chinese Academy of Sciences(grant No.113111KYSB20190020);by the National Key R&D Program of China(2021YFA0718500)from the Minister of Science and Technology of China(MOST);supports from the National Natural Science Foundation of China under Grants U1938109,12333007,12173103,U2038101,U1938103,12333007,12303045,U1938201 and 11733009。
In October 2022,the magnetar SGR J1935+2154 entered the active outburst state.During the episode,the InsightHXMT satellite carried out a long observation that lasted for 20 days.More than 300 bursts were detected,and ...
supported by the National Key R&D Program of China(2021YFA0718500)from the Minister of Science and Technology of China(MOST);supports from the National Natural Science Foundation of China under grants 12173103,12003028,U2038101,U2038102 and 11733009;supported by International Partnership Program of Chinese Academy of Sciences(grant No.113111KYSB20190020);the National SKA Program of China(2022SKA0130100);the China Manned Spaced Project(CMS-CSST-2021-B11)。
Fast radio bursts(FRBs)are short pulses observed in radio frequencies usually originating from cosmological distances.The discovery of FRB 200428 and its X-ray counterpart from the Galactic magnetar SGR J1935+2154sugg...
supported by the National Key R&D Program of China(2021YFA0718500);the National Natural Science Foundation of China under grants U2038106 and 12065017;partially by the Jiangxi Provincial Natural Science Foundation under grant 20224ACB211001。
As one class of the most important objects in the universe,magnetars can produce a lot of different frequency bursts including X-ray bursts.In Cai et al.,75 X-ray bursts produced by magnetar SGR J1935+2154 during an a...
supported by the National Natural Science Foundation of China(grant Nos.12203013,12273005,and U1938201);China Manned Spaced Project(CMS-CSST-2021-B11);the Guangxi Science Foundation(grant Nos.AD22035171 and 2023GXNSFBA026030)。
The detection of quasi-periodic oscillations(QPOs)in magnetar giant flares(GFs)has brought a new perspective to studies of the mechanism of magnetar bursts.Due to the scarcity of GFs,searching for QPOs in magnetar sho...
We present the timing and spectral studies of the Be/X-ray binary XTE J1946+274 during its 2018 and 2021 giant outbursts using observations with the SXT and LAXPC instruments on the AstroSat satellite.Unlike the 1998 ...
supported by the National Natural Science Foundation of China(NSFC,Grant Nos.11822301,12192220,12192221 and 11833007);support from the NSFC(Grant No.12122306);support from the NSFC(Grant Nos.11733009 and U2031205);support by the science research grants from the China Manned Space Project through No.CMS-CSST-2021-A06。
The fast blue optical transients(FBOTs)are a new population of extragalactic transients of unclear physical origin.A variety of mechanisms has been proposed including failed supernova explosion,shock interaction with ...
supported by the National Natural Science Foundation of China(12130342,12273030 and U1938107)。
A pulsating ultraluminous X-ray source(PULX)is a new kind of pulsar(PSR)whose characteristics are different from all known neutron stars.The magnetic field of PULX is suspected to be the main reason to support its sup...
supported by 2018-XBQNXZ-A-009 and 2017-XBQNXZ-A-007;by the National Natural Science Foundation of China(Grant Nos.11673055,41531071,11873018,11773061,11790301 and 11973057);the Tianshan Youth funding(Grant 2017Q401);by Key Laboratory of Solar Activity at National Astronomical Observatories,CAS。
Solar radio spikes are one of the most intriguing spectral types of radio bursts.Their very short lifetimes,small source size and super-high brightness temperature indicate that they should be involved in some strong ...