arXivDaily arXiv每日学术速递 周一至周五更新
北美退伍军人节(Veterans Day),12 日无更新
arXiv 1509.01427astro-ph.HE
收藏

用ATCA观测脉冲星风星云HESS J1303-631视场

Radio Observations of the Pulsar Wind Nebula HESS J1303-631 Field of View with ATCA

Iurii Sushch, Igor Oya, Ullrich Schwanke, Simon Johnston, Matthew Dalton

摘要:

基于其能量依赖的形态,最初未被识别的甚高能量(VHE; E> 100 GeV)伽马射线源HESS J1303 - 631最近与脉冲星PSR J1301 - 6305相关联。随后对X射线和GeV对应物的探测也支持了H.E.S.S.的识别。演化的脉冲星风星云(PWN)。我们在这里报告最近的无线电观测PSR J1301 - 6305视场(FOV)与ATCA致力于寻找无线电对应的这个演变PWN。在5.5 GHz和7.5 GHz的观测没有发现任何与脉冲星相关的扩展发射。对存档的1.384 GHz和2.368 GHz数据的分析也未显示任何显著发射。1.384 GHz的数据揭示了PSR J1301 - 6305 FOV中扩展的壳状发射的暗示,这可能是超新星遗迹。我们讨论了在无线电波长上的PWN的性质和演变的非检测的影响,以及SNR候选人的PSR J1301 - 6305的诞生地的可能性。

英文摘要:

Based on its energy-dependent morphology the initially unidentified very high energy (VHE; E>100 GeV) gamma-ray source HESS J1303-631 was recently associated with the pulsar PSR J1301-6305. Subsequent detection of X-ray and GeV counterparts also supports the identification of the H.E.S.S. source as evolved pulsar wind nebula (PWN). We report here on recent radio observations of the PSR J1301-6305 field of view (FOV) with ATCA dedicated to search for the radio counterpart of this evolved PWN. Observations at 5.5 GHz and 7.5 GHz do not reveal any extended emission associated with the pulsar. The analysis of the archival 1.384 GHz and 2.368 GHz data also does not show any significant emission. The 1.384 GHz data reveal a hint of an extended shell-like emission in the PSR J1301-6305 FOV which might be a supernova remnant. We discuss the implications of the non-detection at radio wavelengths on the nature and evolution of the PWN as well as the possibility of the SNR candidate being the birth place of PSR J1301-6305.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑