2024
DOI: 10.1093/pasj/psae080
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The XRISM first-light observation: Velocity structure and thermal properties of the supernova remnant N 132D

Marc Audard,
Hisamitsu Awaki,
Ralf Ballhausen
et al.

Abstract: We present an initial analysis of the X-Ray Imaging and Spectroscopy Mission (XRISM) first-light observation of the supernova remnant (SNR) N 132D in the Large Magellanic Cloud. The Resolve microcalorimeter has obtained the first high-resolution spectrum in the 1.6–10 keV band, which contains K-shell emission lines of Si, S, Ar, Ca, and Fe. We find that the Si and S lines are relatively narrow, with a broadening represented by a Gaussian-like velocity dispersion of $\sigma _v \sim 450$ km s$^{-1}$. However, th… Show more

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