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相关论文: The central point source in G76.9+1.0

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We present evidence supporting a SNR origin for the radio source G337.2+0.1, which was discovered along the line of sight to the Norma spiral arm in the MOST 843-MHz radio survey. The radio source is spatially superposed to the unidentified…

天体物理学 · 物理学 2009-11-10 J. A. Combi , P. Benaglia , G. E. Romero , M. Sugizaki

PSR J1119-6127 is a recently discovered 1700-year-old radio pulsar that has a very high inferred surface dipolar magnetic field. We present a detailed analysis of a pointed ASCA observation and archival ROSAT data of J1119-6127 and its…

天体物理学 · 物理学 2009-11-06 M. J. Pivovaroff , V. M. Kaspi , F. Camilo , B. M. Gaensler , F. Crawford

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

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

We present a multi-wavelength study of the radio source G296.7-0.9. This source has a bilateral radio morphology, a radio spectral index of -0.5 +/- 0.1, sparse patches of linear polarisation, and thermal X-rays with a bright arc near the…

星系天体物理 · 物理学 2015-05-30 W. J. Robbins , B. M. Gaensler , T. Murphy , S. Reeves , A. J. Green

We present the results obtained from imaging observations, and search for radio pulsations towards the magnetar SGR J1935+2154 made using the Giant Metrewave Radio Telescope, and the Ooty Radio Telescope. We present the high resolution…

太阳与恒星天体物理 · 物理学 2016-08-02 Mayuresh Surnis , Bhal Chandra Joshi , Yogesh Maan , M. A. Krishnakumar , P. K. Manoharan , Arun Naidu

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 present a follow-up X-ray and radio study of the field containing the 7-s X-ray pulsar AX J1845-0258, the serendipitous ASCA source whose characteristics are found to be similar to those of the anomalous X-ray pulsars (AXPs). Newly…

天体物理学 · 物理学 2009-10-31 E. V. Gotthelf , G. Vasisht , K. Torii , B. M. Gaensler

We report on our discovery of the radio pulsar, PSR J2016$+$3711, in supernova remnant (SNR) CTB 87, with a $\sim10.8\sigma$ significance of pulses, which confirms the compact nature of the X-ray point source in CTB 87. It is the first…

高能天体物理现象 · 物理学 2024-02-02 Qian-Cheng Liu , Wen-Juan Zhong , Yang Chen , Pei Wang , Ping Zhou , You-Ling Yue , Di Li

We discovered a middle-aged supernova remnant (SNR) in the vicinity of G69.7+1.0 using the ASCA satellite. G69.7+1.0 was identified in the 2.7 GHz survey and classified as a shell-type SNR with a diameter of 16 arcmin. During the ROSAT…

天体物理学 · 物理学 2015-06-24 Kumi Yoshita , Emi Miyata , Hiroshi Tsunemi

We report the discovery of PSR J2022+3842, a 24 ms radio and X-ray pulsar in the supernova remnant G76.9+1.0, in observations with the Chandra X-ray telescope, the Robert C. Byrd Green Bank Radio Telescope, and the Rossi X-ray Timing…

高能天体物理现象 · 物理学 2015-05-28 Z. Arzoumanian , E. V. Gotthelf , S. M. Ransom , S. Safi-Harb , R. Kothes , T. L. Landecker

We report the detection using ASCA data of a hard X-ray source in the vicinity of the radio pulsar PSR B1853+01 which is located within the supernova remnant (SNR) W44. PSR B1853+01, a 267ms pulsar, has to date only been detected in the…

天体物理学 · 物理学 2009-10-28 Ilana M. Harrus , John P. Hughes , David J. Helfand

We present an XMM-Newton observation of the highly polarized low-surface brightness supernova remnant G107.5-1.5, discovered with the Canadian Galactic Plane Survey (CGPS). We do not detect diffuse X-ray emission from the SNR and set an…

高能天体物理现象 · 物理学 2014-07-30 M. S. Jackson , S. Safi-Harb , R. Kothes

In a search for low surface brightness radio nebulae using the ASKAP-EMU survey, we discovered a faint radio shell, G289.6+5.8, and its central point radio source at the position of the soft gamma-ray source IGR J11187-5438. The central…

(Abridged) We present a detailed radio study of the young supernova remnant (SNR) G292.0+1.8 and its associated pulsar PSR J1124-5916, using the Australia Telescope Compact Array at observing wavelengths of 20, 13 and 6 cm. We find that the…

天体物理学 · 物理学 2009-11-07 B. M. Gaensler , B. J. Wallace

G156.2+5.7 is a large supernova remnant (SNR) first discovered in the ROSAT X-ray survey but radio observations are rare because of its low surface brightness and large size. Radio continuum and polarization images of the SNR G156.2+5.7 at…

天体物理学 · 物理学 2009-11-13 J. W. Xu , J. L. Han , X. H. Sun , W. Reich , L. Xiao , P. Reich , R. Wielebinski

Using the Chandra X-ray Observatory we have discovered a diffuse, center-filled region of hard X-ray emission within the young, oxygen-rich supernova remnant (SNR) G292.0+1.8. Near the peak of this diffuse emission lies a point-like source…

天体物理学 · 物理学 2009-11-06 John P. Hughes , Patrick O. Slane , David N. Burrows , Gordon Garmire , John A. Nousek

G73.9+0.9 has been classified as a probable shell-type supernova remnant (SNR), although it has also been suggested that this object could be a pulsar wind nebula (PWN). Here, a broadband model of the non-thermal emission of G73.9+0.9 from…

高能天体物理现象 · 物理学 2015-10-28 Miguel Araya

Most neutron stars are expected to be born in supernovae, but only about half of supernova remnants (SNRs) are associated with a compact object. In many cases, a supernova progenitor may have resulted in a black hole. However, there are…

高能天体物理现象 · 物理学 2021-04-02 S. Sett , R. P. Breton , C. J. Clark , M. H. Kerkwijk , D. L. Kaplan

Aims. We report results of an X-ray study of the supernova remnant (SNR) G344.7-0.1 and the point-like X-ray source located at the geometrical center of the SNR radio structure. Methods. The morphology and spectral properties of the remnant…

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