English

Typing supernova remnant G352.7$-$0.1 using XMM-Newton X-ray observations

High Energy Astrophysical Phenomena 2024-04-02 v1

Abstract

G352.7-0.1 is a mixed-morphology (MM) supernova remnant (SNR) with multiple radio arcs and has a disputed supernova origin. We conducted a spatially resolved spectroscopic study of the remnant with XMM-Newton X-ray data to investigate its explosion mechanism and explain its morphology. The global X-ray spectra of the SNR can be adequately reproduced using a metal-rich thermal plasma model with a temperature of 2\sim 2 keV and ionization timescale of 3×1010 cm3 s\sim 3\times 10^{10}~{\rm cm^{-3}~s}. Through a comparison with various supernova nucleosynthesis models, we found that observed metal properties from Mg to Fe can be better described using core-collapse supernova models, while thermonuclear models fail to explain the observed high Mg/Si ratio. The best-fit supernova model suggests a 13\sim 13 MM_\odot progenitor star, consistent with previous estimates using the wind bubble size. We also discussed the possible mechanisms that may lead to SNR G352.7-0.1 being an MMSNR. By dividing the SNR into several regions, we found that the temperature and abundance do not significantly vary with regions, except for a decreased temperature and abundance in a region interacting with molecular clouds. The brightest X-ray emission of the SNR spatially matches with the inner radio structure, suggesting that the centrally filled X-ray morphology results from a projection effect.

Keywords

Cite

@article{arxiv.2403.11972,
  title  = {Typing supernova remnant G352.7$-$0.1 using XMM-Newton X-ray observations},
  author = {Ling-Xiao Dang and Ping Zhou and Lei Sun and Junjie Mao and Jacco Vink and Qian-Qian Zhang and Vladimír Domček},
  journal= {arXiv preprint arXiv:2403.11972},
  year   = {2024}
}

Comments

12 pages, 19 figures; Accepted for publication in MNRAS