A Chandra X-ray study of supernova remnant N63A in the Large Magellanic Cloud

Karagöz E., Alan N., Bilir S., Ak S.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, vol.523, no.1, pp.41-54, 2023 (SCI-Expanded)

  • Publication Type: Article / Article
  • Volume: 523 Issue: 1
  • Publication Date: 2023
  • Doi Number: 10.1093/mnras/stad1389
  • Journal Name: MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Applied Science & Technology Source, Communication Abstracts, Compendex, INSPEC, Metadex, zbMATH, DIALNET, Civil Engineering Abstracts
  • Page Numbers: pp.41-54
  • Istanbul University Affiliated: Yes

Abstract

We perform extensive spectroscopy of the supernova remnant N63A in the Large Magellanic Cloud, using ~43 ks Chandra archival data. By analysing the spectra of the entire remnant, we determine the abundance distributions for O, Ne, Mg, Si, and Fe. We detect evidence of enhanced O and possibly Ne and Mg in some of the central regions which might indicate an asymmetric distribution of the ejecta. The average O/Ne, O/Mg, and Ne/Mg abundance ratios of the ejecta are in plausible agreement with the nucleosynthesis products from the explosion of a ~40 M⊙ progenitor. We estimate an upper limit on the Sedov age of ~5400 ± 200 yr and explosion energy of ~8.9 ± 1.6 × 1051 erg for N63A. We discuss the implications of our results for the morphological structure of the remnant, its circumstellar medium, and the nature of the progenitor star.