arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2001.05504astro-ph.GA
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尘埃超新星遗迹的完整星表

A Complete Catalogue of Dusty Supernova Remnants

Hannah Chawner, Haley Gomez, Mikako Matsuura, Matt Smith, Andreas Papageorgiou, Jeonghee Rho, ALberto Noriega-Crespo, Ilse De Looze, Mike Barlow, Phil Cigan, Lo… 展开作者

Hannah Chawner, Haley Gomez, Mikako Matsuura, Matt Smith, Andreas Papageorgiou, Jeonghee Rho, ALberto Noriega-Crespo, Ilse De Looze, Mike Barlow, Phil Cigan, Loretta Dunne, Ken Marsh

摘要:

我们用Herschel在银河平面(经度360度,b = +/- 1度)70 - 500微米处搜索已知超新星遗迹(SNR)的远红外(FIR)对应物。我们在190个SNRs中的39个SNRs中检测到尘埃特征,由13个核心塌陷超新星(CCSNe)组成,包括4个脉冲星风星云(PWNe)和2个Ia型超新星。另外24个FIR检测到的SNR具有未知类型。我们确认在G350.1-0.3范围内的喷射物尘埃的FIR检测,添加到已知的含有喷射物尘埃的~10个SNR的样本中。我们在G351.2+0.1中心的射电核心位置发现了尘埃特征,表明FIR发射与可能的蟹状紧凑物体一致,尘埃温度和质量为Td = 45.8 K,Md = 0.18太阳质量,类似于PWN G54.1+0.3。我们发现,在年轻的SNR的检出率较高。我们制作了11个SNR的尘埃温度图和距离估计的质量图,发现尘埃温度为15 < Td < 40 K。如果尘埃被激波相互作用加热,那么激波气体必须相对较冷和/或具有低密度,以解释所观察到的低颗粒温度。

英文摘要:

We search for far-infrared (FIR) counterparts of known supernova remnants (SNRs) in the Galactic plane (360 degrees in longitude and b = +/- 1 deg ) at 70 - 500 micron with Herschel. We detect dust signatures in 39 SNRs out of 190, made up of 13 core-collapse supernovae (CCSNe), including 4 Pulsar Wind Nebulae (PWNe), and 2 Type Ia SNe. A further 24 FIR detected SNRs have unknown types. We confirm the FIR detection of ejecta dust within G350.1-0.3, adding to the known sample of ~10 SNRs containing ejecta dust. We discover dust features at the location of a radio core at the centre of G351.2+0.1, indicating FIR emission coincident with a possible Crab-like compact object, with dust temperature and mass of Td = 45.8 K and Md = 0.18 solar mass, similar to the PWN G54.1+0.3. We show that the detection rate is higher among young SNRs. We produce dust temperature maps of 11 SNRs and mass maps of those with distance estimates, finding dust at temperatures 15 < Td < 40 K. If the dust is heated by shock interactions the shocked gas must be relatively cool and/or have a low density to explain the observed low grain temperatures.

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