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arXiv 1206.2895astro-ph.SRastro-ph.HE
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从档案资料中发现五颗新脉冲星

Discovery of Five New Pulsars in Archival Data

Mitchell B. Mickaliger, Duncan R. Lorimer, Jason Boyles, Maura A. McLaughlin, Adam Collins, Logan Hough, Nathan Tehrani, Craig Tenney, April Liska, Joseph Swiggum

摘要:

帕克斯多波束脉冲星巡天的再处理发现了五颗以前未知的脉冲星和几颗尚未确认的候选者。PSR J 0922 -52的周期为9.68 ms,DM为122.4 pc cm^-3。PSR J1147-66的周期为3.72 ms,DM为133.8 pc cm^-3。PSR J1227-6208的周期为34.53 ms,DM为362.6 pc cm^-3,处于一个6.7天的双星轨道上,桑顿等人在进行中的高分辨率帕克斯巡天中独立探测到了它,爱因斯坦@Home志愿者也在独立处理中探测到了它。PSR J1546-59的周期为7.80 ms,DM为168.3 pc cm^-3。PSR J1725-3853是一颗孤立的4.79 ms脉冲星,DM为158.2 pc cm^-3。这些候选人可能在早期的处理工作中被遗漏,因为他们的DM很高,周期很短,而且需要浏览的候选人数量很大。这些发现表明,在多波束勘测数据中,还有待发现更多的类星体。

英文摘要:

Reprocessing of the Parkes Multibeam Pulsar Survey has resulted in the discovery of five previously unknown pulsars and several as-yet-unconfirmed candidates. PSR J0922-52 has a period of 9.68 ms and a DM of 122.4 pc cm^-3. PSR J1147-66 has a period of 3.72 ms and a DM of 133.8 pc cm^-3. PSR J1227-6208 has a period of 34.53 ms, a DM of 362.6 pc cm^-3, is in a 6.7 day binary orbit, and was independently detected in an ongoing high-resolution Parkes survey by Thornton et al. and also in independent processing by Einstein@Home volunteers. PSR J1546-59 has a period of 7.80 ms and a DM of 168.3 pc cm^-3. PSR J1725-3853 is an isolated 4.79-ms pulsar with a DM of 158.2 pc cm^-3. These pulsars were likely missed in earlier processing efforts due to their high DMs and short periods and the large number of candidates that needed to be looked through. These discoveries suggest that further pulsars are awaiting discovery in the multibeam survey data.

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。

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