论文标题

通过Hubble太空望远镜进行深入搜索的磁力对应物的新候选人

New candidates for magnetar counterparts from a deep search with the Hubble Space Telescope

论文作者

Chrimes, A. A., Levan, A. J., Fruchter, A. S., Groot, P. J., Kouveliotou, C., Lyman, J. D., Tanvir, N. R., Wiersema, K.

论文摘要

我们报告发现从深近红外搭档望远镜成像中发现了六个新的磁性对应物候选者。新候选人是我们在2018 - 2020年间获得的HST数据的19个磁铁样本之一。 We confirm the variability of previously established near-infrared counterparts, and newly identify candidates for PSRJ1622-4950, SwiftJ1822.3-1606, CXOUJ171405.7-381031, SwiftJ1833-0832, SwiftJ1834.9-0846 and AXJ1818.8-1559 based on their proximity to X-ray本地化。将新的候选人与现有的候选人的颜色,幅度和近红外的X射线光谱指数进行了比较。我们发现两个AXJ1818.8-1559的候选者都与先前确定的同行一致。其他新的候选人可能是偶然的对准,或者在磁盘对应物中未见的近红外排放方面具有不同的起源。需要对这些候选人进行进一步的观察和研究,以牢固确立其性质。

We report the discovery of six new magnetar counterpart candidates from deep near-infrared Hubble Space Telescope imaging. The new candidates are among a sample of nineteen magnetars for which we present HST data obtained between 2018-2020. We confirm the variability of previously established near-infrared counterparts, and newly identify candidates for PSRJ1622-4950, SwiftJ1822.3-1606, CXOUJ171405.7-381031, SwiftJ1833-0832, SwiftJ1834.9-0846 and AXJ1818.8-1559 based on their proximity to X-ray localisations. The new candidates are compared with the existing counterpart population in terms of their colours, magnitudes, and near-infrared to X-ray spectral indices. We find two candidates for AXJ1818.8-1559 which are both consistent with previously established counterparts. The other new candidates are likely to be chance alignments, or otherwise have a different origin for their near-infrared emission not previously seen in magnetar counterparts. Further observations and studies of these candidates are needed to firmly establish their nature.

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