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- Publisher Website: 10.1093/mnras/stu051
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Article: Multifrequency study of a new fe-rich supernova remnant in the Large Magellanic Cloud, MCSNR J0508-6902
Title | Multifrequency study of a new fe-rich supernova remnant in the Large Magellanic Cloud, MCSNR J0508-6902 |
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Authors | |
Keywords | Radio continuum: ISM Magellanic clouds ISM: Supernova remnants X-rays: ISM |
Issue Date | 2014 |
Citation | Monthly Notices of the Royal Astronomical Society, 2014, v. 439, n. 1, p. 1110-1124 How to Cite? |
Abstract | We present a detailed radio, X-ray and optical study of a newly discovered Large Magellanic Cloud (LMC) supernova remnant (SNR) which we denote as MCSNR J0508-6902. Observations from the Australia Telescope Compact Array (ATCA) and the XMM-Newton X-ray observatory are complemented by deep Hα images and Anglo-Australian Telescope AAOmega spectroscopic data to study the SNR shell and its shock ionization. Archival data at other wavelengths are also examined. The remnant follows a filled-in shell-type morphology in the radio continuum and has a size of ~74 pc × 57 pc at the LMC distance. The X-ray emission exhibits a faint soft shell morphology with Fe-rich gas in its interior - indicative of a Type Ia origin. The remnant appears to be mostly dissipated at higher radio-continuum frequencies leaving only the south-eastern limb fully detectable while in the optical it is the western side of the SNR shell that is clearly detected. The best-fitting temperature to the shell X-ray emission κT = 0.41 +0.05 -0.06 is consistent with other large LMC SNRs. We determined an O/Fe ratio of <21 and an Fe mass of 0.5-1.8 M⊙ in the interior of the remnant, both of which are consistent with the Type Ia scenario. We find an equipartition magnetic field for the remnant of ~28 μG, a value typical of older SNRs and consistent with other analyses which also infer an older remnant. © 2014 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society. |
Persistent Identifier | http://hdl.handle.net/10722/209023 |
ISSN | 2023 Impact Factor: 4.7 2023 SCImago Journal Rankings: 1.621 |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Bozzetto, Luke M. | - |
dc.contributor.author | Kavanagh, Patrick J. | - |
dc.contributor.author | Maggi, P. | - |
dc.contributor.author | Filipovíc, Miroslav D. | - |
dc.contributor.author | Stupar, Milorad | - |
dc.contributor.author | Parker, Quentin A. | - |
dc.contributor.author | Reid, Warren A. | - |
dc.contributor.author | Sasaki, Manami | - |
dc.contributor.author | Haberl, Frank W. | - |
dc.contributor.author | Urǒsević, Dejan | - |
dc.contributor.author | Dickel, John R. | - |
dc.contributor.author | Sturm, Richard | - |
dc.contributor.author | Williams, Robert J. | - |
dc.contributor.author | Ehle, Matthias | - |
dc.contributor.author | Gruendl, Robert A. | - |
dc.contributor.author | Chu, Youhua | - |
dc.contributor.author | Points, Sean D. | - |
dc.contributor.author | Crawford, Evan J. | - |
dc.date.accessioned | 2015-03-23T02:31:11Z | - |
dc.date.available | 2015-03-23T02:31:11Z | - |
dc.date.issued | 2014 | - |
dc.identifier.citation | Monthly Notices of the Royal Astronomical Society, 2014, v. 439, n. 1, p. 1110-1124 | - |
dc.identifier.issn | 0035-8711 | - |
dc.identifier.uri | http://hdl.handle.net/10722/209023 | - |
dc.description.abstract | We present a detailed radio, X-ray and optical study of a newly discovered Large Magellanic Cloud (LMC) supernova remnant (SNR) which we denote as MCSNR J0508-6902. Observations from the Australia Telescope Compact Array (ATCA) and the XMM-Newton X-ray observatory are complemented by deep Hα images and Anglo-Australian Telescope AAOmega spectroscopic data to study the SNR shell and its shock ionization. Archival data at other wavelengths are also examined. The remnant follows a filled-in shell-type morphology in the radio continuum and has a size of ~74 pc × 57 pc at the LMC distance. The X-ray emission exhibits a faint soft shell morphology with Fe-rich gas in its interior - indicative of a Type Ia origin. The remnant appears to be mostly dissipated at higher radio-continuum frequencies leaving only the south-eastern limb fully detectable while in the optical it is the western side of the SNR shell that is clearly detected. The best-fitting temperature to the shell X-ray emission κT = 0.41 +0.05 -0.06 is consistent with other large LMC SNRs. We determined an O/Fe ratio of <21 and an Fe mass of 0.5-1.8 M⊙ in the interior of the remnant, both of which are consistent with the Type Ia scenario. We find an equipartition magnetic field for the remnant of ~28 μG, a value typical of older SNRs and consistent with other analyses which also infer an older remnant. © 2014 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society. | - |
dc.language | eng | - |
dc.relation.ispartof | Monthly Notices of the Royal Astronomical Society | - |
dc.subject | Radio continuum: ISM | - |
dc.subject | Magellanic clouds | - |
dc.subject | ISM: Supernova remnants | - |
dc.subject | X-rays: ISM | - |
dc.title | Multifrequency study of a new fe-rich supernova remnant in the Large Magellanic Cloud, MCSNR J0508-6902 | - |
dc.type | Article | - |
dc.description.nature | link_to_OA_fulltext | - |
dc.identifier.doi | 10.1093/mnras/stu051 | - |
dc.identifier.scopus | eid_2-s2.0-84894670217 | - |
dc.identifier.volume | 439 | - |
dc.identifier.issue | 1 | - |
dc.identifier.spage | 1110 | - |
dc.identifier.epage | 1124 | - |
dc.identifier.eissn | 1365-2966 | - |
dc.identifier.isi | WOS:000333297700099 | - |
dc.identifier.issnl | 0035-8711 | - |