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Molecular Environments of Supernova Remnants

  • Yang Chen (a1) (a2), Bing Jiang (a1), Ping Zhou (a1), Yang Su (a3), Xin Zhou (a2) (a3), Hui Li (a1) (a4) and Xiao Zhang (a1)...

Abstract

There are about 70 Galactic supernova remnants (SNRs) that are now confirmed or suggested to be in physical contact with molecular clouds (MCs) with six kinds of evidence of multiwavelength observations. Recent detailed CO-line spectroscopic mappings of a series of SNRs reveal them to be in cavities of molecular gas, implying the roles the progenitors may have played. We predict a linear correlation between the wind bubble sizes of main-sequence OB stars in a molecular environment and the stellar masses and discuss its implication for supernova progenitors. The molecular environments of SNRs can serve as a good probe for the γ-rays arising from the hadronic interaction of the accelerated protons, and this paper also discusses the γ-ray emission from MCs illuminated by diffusive protons that escape from SNR shocks.

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Supported by the 973 Program grant 2009CB824800, the NSFC grants 11233001, 11103082, and 11203013, grants 20120091110048 and 20110091120001 from the Educational Ministry of China, and grant 2011M500963 from the China Postdoctoral Science Foundation.

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Molecular Environments of Supernova Remnants

  • Yang Chen (a1) (a2), Bing Jiang (a1), Ping Zhou (a1), Yang Su (a3), Xin Zhou (a2) (a3), Hui Li (a1) (a4) and Xiao Zhang (a1)...

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