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arXiv 0806.0431astro-ph
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PSR J1410-6132:与EGRET源3EG J1410-6147有关的年轻高能脉冲星

PSR J1410-6132: A young, energetic pulsar associated with EGRET source 3EG J1410-6147

J. T. O'Brien, S. Johnston, M. Kramer, A. G. Lyne, M. Bailes, A. Possenti, M. Burgay, D. R. Lorimer, M. A. McLaughlin, G. Hobbs, D. Parent, L. Guillemot

摘要:

我们提出的PSR J1410-6132,一个50毫秒的脉冲星发现在银河系平面的高频调查,使用7束6.3 GHz的接收器上的64米帕克斯射电望远镜。这颗脉冲星位于未确认的EGRET源3EG J1410-6147的误差范围内,特征年龄为26 kyr,自旋下降能量为10^37 erg s^-1。它的色散测量值非常高,为960+/-10 cm^-3 pc,自转测量值为所有脉冲星中最大的,RM=+2400 +/-30 rad m^-2。这颗脉冲星在1.4 GHz及以下的频率下非常散射展宽,使得脉冲发射几乎不可能被探测到。假设距离为15 kpc,脉冲星的自旋能量和伽马射线效率因子约为10%,足以为伽马射线源提供动力。因此,我们相信我们已经确定了3EG J1410-6147的性质。这一新发现表明,对银河系内EGRET源的深度定向高频调查可能会发现更多年轻,充满活力的恒星。

英文摘要:

We present the discovery of PSR J1410-6132, a 50-ms pulsar found during a high-frequency survey of the Galactic plane, using a 7-beam 6.3-GHz receiver on the 64-m Parkes radio telescope. The pulsar lies within the error box of the unidentified EGRET source 3EG J1410-6147, has a characteristic age of 26 kyr and a spin-down energy of 10^37 erg s^-1. It has a very high dispersion measure of 960+/-10 cm^-3 pc and the largest rotation measure of any pulsar, RM=+2400 +/- 30 rad m^-2. The pulsar is very scatter-broadened at frequencies of 1.4 GHz and below, making pulsed emission almost impossible to detect. Assuming a distance of 15 kpc, the pulsar's spin-down energy and a gamma-ray efficiency factor of ~10 per cent is sufficient to power the gamma-ray source. We therefore believe we have identified the nature of 3EG J1410-6147. This new discovery suggests that deep targeted high-frequency surveys of inner-galaxy EGRET sources could uncover further young, energetic pulsars.

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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