中文
相关论文

相关论文: Radio Pulsation Search and Imaging Study of SGR J1…

200 篇论文

We present a radio continuum and linear polarization study of the Galactic supernova remnant G57.2+0.8, which may host the recently discovered magnetar SGR1935+2154. The radio SNR shows the typical radio continuum spectrum of a mature…

高能天体物理现象 · 物理学 2018-01-10 R. Kothes , X. Sun , B. Gaensler , W. Reich

We have performed a multi-wavelength study of supernova remnant (SNR) G57.2+0.8 and its environment. The SNR hosts the magnetar SGR 1935+2154, which emitted an extremely bright ms-duration radio burst on 2020 Apr 28 (The Chime/Frb…

高能天体物理现象 · 物理学 2020-12-23 Ping Zhou , Xin Zhou , Yang Chen , Jie-Shuang Wang , Jacco Vink , Yuan Wang

J1935+2154 is known as a source of soft gamma radiation. Hyperflares from magnetar were detected at a frequency of 1.25 GHz on the FAST telescope in May 2020. The magnetar enters the survey conducted on LPA radio telescope at 111 MHz. A…

高能天体物理现象 · 物理学 2023-11-15 E. A. Brylyakova , S. A. Tyul'bashev

We report on radio observations of four magnetars SGR 0501+4516, Swift 1834.9-0846, 1E 1841-045, SGR 1900+14 and a magnetar-like pulsar PSR J1846-0258 with the Five-hundred-meter Aperture Spherical radio Telescope (FAST) at 1250 MHz.…

高能天体物理现象 · 物理学 2024-12-31 Juntao Bai , Na Wang , Shi Dai , Shuangqiang Wang , Jianping Yuan , Wenming Yan , Lunhua Shang , Xin Xu , Shijun Dang , Zhen Zhang

The rotation-powered pulsar PSR J1846-0258 in the supernova remnant Kes 75 was recently shown to have exhibited magnetar-like X-ray bursts in mid-2006. Radio emission has not yet been observed from this source, but other magnetar-like…

天体物理学 · 物理学 2009-11-13 Anne M. Archibald , Victoria M. Kaspi , Margaret A. Livingstone , Maura A. McLaughlin

Recently, the Galactic magnetar SGR J1935+2154 has garnered attention due to its emission of an extremely luminous radio burst, reminiscent of Fast Radio Bursts (FRBs). SGR J1935+2154 is one of the most active magnetars, displaying flaring…

Magnetars are slowly rotating, highly magnetized young neutron stars that can show transient radio phenomena for radio pulses and fast radio bursts. We conducted radio observations of from two magnetars SGR$~$J1935+2154 and…

高能天体物理现象 · 物理学 2025-02-03 Lang Xie , J. L. Han , Z. L. Yang , W. C. Jing , D. J. Zhou , W. Q. Su , Yi Yan , Tao Wang , N. N. Cai , P. F. Wang , Chen Wang

The supernova remnant G15.4+0.1 is considered to be the possible counterpart of the gamma-ray source HESSJ1818-154. With the goal of getting a complete view of this remnant and understanding the nature of the gamma-ray flux, we conducted a…

高能天体物理现象 · 物理学 2015-04-15 L. Supan , G. Castelletti , B. C. Joshi , M. P. Surnis , D. Supanitsky

We describe the serendipitous discovery of a radio point source in a 618 MHz image of the supernova remnant(SNR) G76.9+1.0. The SNR has a bipolar structure and the point source is located near a faint bridge of emission joining the two…

高能天体物理现象 · 物理学 2015-05-28 V. R. Marthi , J. N. Chengalur , Y. Gupta , G. C. Dewangan , D. Bhattacharya

We report on Australia Telescope Compact Array observations in the direction of the young high-magnetic-field radio pulsar PSR J1119-6127. In the resulting images we identify a non-thermal radio shell of diameter 15 arcminutes, which we…

天体物理学 · 物理学 2007-05-23 F. Crawford , B. M. Gaensler , V. M. Kaspi , R. N. Manchester , F. Camilo , A. G. Lyne , M. J. Pivovaroff

We present a study of new Australian Telescope Compact Array (ATCA) observations of supernova remnant, SNR J0536-6735. This remnant appears to follow a shell morphology with a diameter of D=36x29 pc (with 1 pc uncertainty in each…

高能天体物理现象 · 物理学 2015-06-05 L. M. Bozzetto , M. D. Filipović , E. J. Crawford , A. Y. De Horta , M. Stupar

The origin of the high-frequency radio emission detected from several magnetars is poorly understood. In this paper, we report the ~40 GHz properties of SGR J1745-29 as measured using Jansky Very Large Array (JVLA) and Robert C. Byrd Green…

We analyzed broad-band X-ray and radio data of the magnetar SGR J1935+2154 taken in the aftermath of its 2014, 2015, and 2016 outbursts. The source soft X-ray spectrum <10 keV is well described with a BB+PL or 2BB model during all three…

Pinpointing a pulsar in its parent supernova remnant (SNR) or resulting pulsar wind nebula (PWN) is key for understanding its formation history, and the pulsar wind mechanism. Yet, only about half the SNRs and PWNe appear associated with a…

高能天体物理现象 · 物理学 2019-03-13 Samayra Straal , Joeri van Leeuwen

New images of the supernova remnant (SNR) G351.7+0.8 are presented based on 21cm HI-line emission and continuum emission data from the Southern Galactic Plane Survey (SGPS). SNR G351.7+0.8 has a flux density of 8.4+-0.7 Jy at 1420 MHz. Its…

天体物理学 · 物理学 2008-11-26 W. W. Tian , M. Haverkorn , H. Y. Zhang

We report on a multifrequency radio study of the supernova remnant (SNR) G338.3-0.0, in positional coincidence with the TeV source HESS J1640-465. To carry out this research we observed the SNR G338.3-0.0 using the Giant Metrewave Radio…

星系天体物理 · 物理学 2015-05-30 G. Castelletti , E. Giacani , G. Dubner , B. C. Joshi , A. Pramesh Rao , R. Terrier

New images of the radio Supernova Remnant (SNR) G65.1+0.6 are presented, based on the 408 MHz and 1420 MHz continuum emission and the HI-line emission data of the Canadian Galactic Plane Survey (CGPS). A large shell-like structure seen in…

天体物理学 · 物理学 2009-11-11 W. W. Tian , D. A. Leahy

We have extensively searched for periodic signals in the area of the soft gamma-ray repeater SGR 1900+14, at 430 and 1410 MHz with the Arecibo telescope. Our observations did not reveal the 5.16-s periodicity reported for the magnetar down…

天体物理学 · 物理学 2007-05-23 K. Xilouris , D. R. Lorimer

We report on sensitive new 1.4-GHz VLA radio observations of the pulsar wind nebula G21.5-0.9, powered by PSR J1833-1034, and its environs. Our observations were targeted at searching for the radio counterpart of the shell-like structure…

星系天体物理 · 物理学 2015-05-19 Michael F. Bietenholz , Heather Matheson , Samar Safi-Harb , Crystal Brogan , Norbert Bartel
‹ 上一页 1 2 3 10 下一页 ›