A Diamond Ring in X-Ray: Investigating the Diffuse Emission of Supernova Remnant G28.8+1.5

Supernova remnants are products of supernova explosions, which are usually observed in the X-ray band. However, the diffuse emission from the galactic supernova remnant G28.8+1.5 has been overlooked following initial searches for pulsars and pulsar wind nebulae. This paper presents background-subtra...

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Bibliographic Details
Published in:Publications of the Astronomical Society of the Pacific 2024-07, Vol.136 (7), p.74301
Main Author: Zhang, Kaiyue
Format: Article
Language:English
Subjects:
Emissions
Explosions
Nebulae
Pulsar winds
Pulsars
Spatial analysis
Supernova
Supernova remnants
X-ray astronomy
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Summary:Supernova remnants are products of supernova explosions, which are usually observed in the X-ray band. However, the diffuse emission from the galactic supernova remnant G28.8+1.5 has been overlooked following initial searches for pulsars and pulsar wind nebulae. This paper presents background-subtracted imaging and spatial-resolved spectral analyses using archival XMM-Newton data to reveal unprecedented details of the diffuse emission, providing updated estimates of distance and age. For the first time, an iron overabundance is revealed and the progenitor is suggested to be 9–15 M ⊙ . These findings refine our understanding of G28.8+1.5 and contribute to a broader comprehension of the Galactic supernova remnant family.
ISSN:0004-6280
1538-3873
DOI:10.1088/1538-3873/ad6105