{ "id": "1510.01215", "version": "v1", "published": "2015-10-05T16:29:58.000Z", "updated": "2015-10-05T16:29:58.000Z", "title": "An X-ray characterization of the central region of the SNR G332.5-5.6", "authors": [ "Alejandra E. Suárez", "Jorge A. Combi", "Juan F. Albacete-Colombo", "Sergio Paron", "Federico García", "Marco Miceli" ], "comment": "7 pages, 5 figures and 2 tables. Accepted for publication in A&A", "categories": [ "astro-ph.HE" ], "abstract": "We present an X-ray analysis of the central region of supernova remnant (SNR) G332.5-5.6 through an exhaustive analysis of XMM-Netwon observations with complementary infrared observations. We characterize and discuss the origin of the observed X-ray morphology, which presents a peculiar plane edge over the west side of the central region. The morphology and spectral properties of the X-ray supernova remnant were studied using a single full frame XMM-Newton observation in the 0.3 to 10.0 keV energy band. Archival infrared WISE observations at 8, 12 and 24 \\mu m were also used to investigate the properties of the source and its surroundings at different wavelengths. The results show that the extended X-ray emission is predominantly soft (0.3-1.2 keV) and peaks around 0.5 keV, which shows that it is an extremely soft SNR. X-ray emission correlates very well with central regions of bright radio emission. On the west side the radio/X-ray emission displays a plane-like feature with a terminal wall where strong infrared emission is detected. Our spatially resolved X-ray spectral analysis confirms that the emission is dominated by weak atomic emission lines of N, O, Ne, and Fe, all of them undetected in previous X-ray studies. These characteristics suggest that the X-ray emission is originated in an optically thin thermal plasma, whose radiation is well fitted by a non-equilibrium ionization collisional plasma (VNEI) X-ray emission model. Our study favors a scenario where G332.5-5.6 is expanding in a medium with an abrupt density change (the wall), likely a dense infrared emitting region of dust on the western side of the source.", "revisions": [ { "version": "v1", "updated": "2015-10-05T16:29:58.000Z" } ], "analyses": { "keywords": [ "central region", "x-ray emission", "x-ray spectral analysis confirms", "x-ray characterization", "snr g332" ], "publication": { "doi": "10.1051/0004-6361/201526699" }, "note": { "typesetting": "TeX", "pages": 7, "language": "en", "license": "arXiv", "status": "editable", "inspire": 1396103 } } }