The Transition from Young to Middle-aged Supernova Remnants: Thermal and Nonthermal Aspects of SNR N132D

  title={The Transition from Young to Middle-aged Supernova Remnants: Thermal and Nonthermal Aspects of SNR N132D},
  author={Aya Bamba and Yutaka Ohira and Ryo Yamazaki and Makoto Sawada and Yukikatsu Terada and Katsuji Koyama and Eric D. Miller and Hiroya Yamaguchi and Satoru Katsuda and Masayoshi Nobukawa and Kumiko K. Nobukawa},
  journal={The Astrophysical Journal},
Supernova remnants (SNRs) are the primary candidate of Galactic cosmic-ray accelerators. It is still an open issue when and how young SNRs, which typically exhibit strong synchrotron X-rays and GeV and TeV gamma rays, undergo the state transition to middle-aged SNRs dominated by thermal X-rays and GeV gamma rays. SNR N132D in the Large Magellanic Cloud is an ideal target to study such a transition, exhibiting bright X-rays and gamma rays, and with an expected age of ∼2500 years. In this paper… 

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