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SEARCHING FOR COMPACT OBJECTS IN SNRs G27.8+0.6 AND G28.8+1.5*

机译:搜索SNR G27.8 + 0.6和G28.8 + 1.5 *中的紧凑对象

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We analyzed XMM-Newton observations of two center-filled supernova remnants (SNRs), G27.8+0.6 and G28.8+1.5, to search for pulsars/pulsar wind nebulae (PWNe) and other types of neutron stars (NSs) associated with these remnants. We discovered a PWN candidate within the extent of the centrally peaked radio emission of G27.8+0.6. The X-ray morphology of the PWN candidate and its position with respect to the host SNR suggest that the alleged pulsar might be moving away from the SNR's center with a transverse velocity of around 100-200?km?s–1. The majority of the detected X-ray point sources in both fields are classified as main-sequence stars, based on their bright optical counterparts and relatively soft X-ray spectra. The remaining medium-hard and hard sources are most probably either active galactic nuclei or cataclysmic variables, although we cannot completely rule out the possibility that some of these sources are NSs.
机译:我们分析了两个中心充满的超新星残骸(SNR)G27.8 + 0.6和G28.8 + 1.5的XMM-牛顿观测值,以搜索脉冲星/脉冲风星云(PWNe)以及与之相关的其他类型的中子星(NSs)这些残留物。我们在G27.8 + 0.6的中心峰值无线电发射范围内发现了一个PWN候选对象。 PWN候选物的X射线形态及其相对于宿主SNR的位置表明,所谓的脉冲星可能以约100-200?km?s-1的横向速度从SNR中心移开。根据两个场中大多数检测到的X射线源,根据它们的明亮光学对应物和相对较软的X射线光谱,它们被分类为主序星。剩下的中等硬源和硬源很可能是活跃的银河核或催化变量,尽管我们不能完全排除其中一些源为NS的可能性。

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