Typing supernova remnant G352.7−0.1 using XMM–Newton X-ray observations
Mar 18, 202412 pages
Published in:
- Mon.Not.Roy.Astron.Soc. 529 (2024) 4, 4117-4127
- Published: Mar 23, 2024
e-Print:
- 2403.11972 [astro-ph.HE]
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Abstract: (Oxford University Press)
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 keV and ionization time-scale of ∼3 × 10^10 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 M_⊙ 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.Note:
- 12 pages, 19 figures; Accepted for publication in MNRAS
- nuclear reactions, nucleosynthesis, abundances
- ISM: individual objects (G352.7−0.1)
- ISM: supernova remnants
- X-rays: ISM
References(132)
Figures(19)