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arXiv 2012.06335astro-ph.HE
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盖亚卫星和在哪里可以找到他们在EDR3

Gaia pulsars and where to find them in EDR3

John Antoniadis

备注：
To appear in RNAAS
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摘要：

早期盖亚数据发布3（EDR 3）为整个天空的近15亿个源提供了精确的天体测量。其中有几十颗与银河系和麦哲伦星云中的中子星有关。在这里，我们报告了使用Antoniadis（2021）中概述的方法搜索已知旋转动力卫星的EDR 3对应物。EDR 3和ATNF脉冲星目录之间的互相关确定了41个接近的天体测量对（脉冲星位置的参考历元处的$< 0.5$角秒）。其中26个与以前已知的光学对应物有关，而其余的是需要进一步跟踪的候选对。重点包括蟹状星云脉冲星（PSR B 0531 +21），EDR 3得出的距离为$2.08^{+0.78}_{-0.45}$ kpc（或考虑色散测量先验的$2.00_{-0.38}^{+0.56}$ kpc;误差表示95%置信限），PSR J 1638 -4608，一颗迄今被认为是孤立的脉冲星，位于盖亚源的0.056弧秒内。

英文摘要：

The Early Gaia Data Release 3 (EDR3) provides precise astrometry for nearly 1.5 billion sources across the entire sky. A few tens of these are associated with neutron stars in the Milky Way and Magellanic Clouds. Here, we report on a search for EDR3 counterparts to known rotation-powered pulsars using the method outlined in Antoniadis (2021). A cross-correlation between EDR3 and the ATNF pulsar catalogue identifies 41 close astrometric pairs ($< 0.5$ arcsec at the reference epoch of the pulsar position). Twenty six of these are related to previously-known optical counterparts, while the rest are candidate pairs that require further follow-up. Highlights include the Crab Pulsar (PSR B0531+21), for which EDR3 yields a distance of $2.08^{+0.78}_{-0.45}$ kpc (or $2.00_{-0.38}^{+0.56}$ kpc taking into account the dispersion-measure prior; errors indicate 95% confidence limits) and PSR J1638-4608, a pulsar thus-far considered to be isolated that lies within 0.056 arcsec of a Gaia source.

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