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A Systematic Study of Evolved Supernova Remnants in the Large and Small Magellanic Clouds with Suzaku
Yoko Takeuchi, Hiroya Yamaguchi, Toru Tamagawa
Typing the origin (i.e., Type Ia or core-collapse) of supernova remnants (SNRs) is crucial to determine the rates of supernova (SN) explosions in a galaxy, which is a key to unders…
N49: the first robust discovery of a recombining plasma in an extra galactic supernova remnant
Hiroyuki Uchida, Katsuji Koyama, Hiroya Yamaguchi
Recent discoveries of recombining plasmas (RPs) in supernova remnants (SNRs) have dramatically changed our understanding of SNR evolution. To date, a dozen of RP SNRs have been ide…
X-ray Fading and Expansion in the "Miniature Supernova Remnant" of GK Persei
D. Takei, J. J. Drake, H. Yamaguchi +3
We report on a second epoch of Chandra X-ray imaging spectroscopy of the spatially-resolved old nova remnant GK Persei. An ACIS-S3 observation of 97.4 ks was conducted in November…
A Chandrasekhar Mass Progenitor for the Type Ia Supernova Remnant 3C 397 from The Enhanced Abundances of Nickel and Manganese
Hiroya Yamaguchi, Carles Badenes, Adam R. Foster +8
Despite decades of intense efforts, many fundamental aspects of Type Ia supernova (SNe Ia) remain elusive. One of the major open questions is whether the mass of the exploding whit…