XMM–Newton: X-ray emission analysis of SNR N63A and surrounding regions in the LMC

We present an analysis of diffuse X-ray emission in the region of the supernova remnant (SNR) N63A located in the Large Magallanic Cloud with archival data from the XMM–Newton Observatory. Using XMM–Newton sas package we obtained images that show emission from the SNR and also from the surrounding regions, which has not been previously reported. We performed a separate spectrum fitting of the central emission and the surrounding of N63A. Spectroscopic analysis reveals that the observed spectra are best fitted by thermal models. For both regions, these models yield similar abundances ~ 0.5 times solar and temperature ~ 0.75 \ keV. For the surrounding region (DEM-L 247) the estimated intrinsic X-ray luminosity is 6.0× 10³⁶ \, erg. The SNR N63A is characterized with the following parameter values: an initial energy E₀= 1.4× 10⁵¹ \ erg, an intrinsic X-ray luminosity of Lₓ=2.5× 10³⁷ \ erg\,s⁻¹ and an estimated age of 4.0\ kyr. We suggest that the DEM-L 247 region is an interstellar superbubble formed by the combined effect of the supernova explosion and strong stellar winds, whereas its X-ray emission seems to come from the heated gas by the interior SNR, as indicated by their similar spectra.