English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

(Abridged) We present a spatial and spectral X-ray analysis of the Galacticsupernova remnant (SNR) G352.7-0.1 using archival data from observations madewith XMM-Newton and Chandra. Prior X-ray observations of this SNR revealed athermal center-filled morphology which contrasts with a shell-like radiomorphology, thus establishing G352.7$-$0.1 as a mixed-morphology SNR (MMSNRs).Our study confirms that the X-ray emission comes from the SNR interior and mustbe ejecta-dominated. Spectra obtained with XMM-Newton may be fit satisfactorilywith a single thermal component (namely a non-equilibrium ionization componentwith enhanced abundances of silicon and sulfur). In contrast, spectra extractedby Chandra from certain regions of the SNR cannot always be fit by a singlethermal component. For those regions, a second thermal component with solarabundances or two thermal components with different temperatures and thawedsilicon and sulfur abundances (respectively) can generate astatistically-acceptable fit. We argue that the former scenario is morephysically-plausible: based on parameters of our spectral fits, we calculatephysical parameters including X-ray-emitting mass (about 45 solar masses, forsolar abundances). We find no evidence for overionization in the X-ray emittingplasma associated with the SNR: this phenomenon has been seen in other MMSNRs.We have conducted a search for a neutron star within the SNR using a hard (2-10keV) Chandra image but could not identify a firm candidate. We also present(for the first time) the detection of infrared emission from this SNR asdetected at 24 micron by MIPS aboard Spitzer. Finally, we discuss theproperties of G352.7-0.1 in the context of other ejecta-dominated MMSNRs.

XMM-Newton and Chandra Observations of the Ejecta-Dominated Mixed-Morphology Galactic Supernova Remnant G352.7-0.1