A newly recognized very young supernova remnant in M83
As part of a spectroscopic survey of supernova remnant candidates in M83 using the Gemini-South telescope and Gemini Multi-Object Spectrograph, we have discovered one object whose spectrum shows very broad lines at Hα, [O I] λλ6300, 6363, and [O III] λλ4959, 5007, similar to those from other objects...
| Main Authors: | , , , , , , , , , |
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| Format: | Journal Article |
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Institute of Physics Publishing
2015
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| Online Access: | http://hdl.handle.net/20.500.11937/17774 |
| _version_ | 1848749554409668608 |
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| author | Blair, W. Winkler, P. Long, K. Whitmore, B. Kim, H. Soria, Roberto Kuntz, K. Plucinsky, P. Dopita, M. Stockdale, C. |
| author_facet | Blair, W. Winkler, P. Long, K. Whitmore, B. Kim, H. Soria, Roberto Kuntz, K. Plucinsky, P. Dopita, M. Stockdale, C. |
| author_sort | Blair, W. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | As part of a spectroscopic survey of supernova remnant candidates in M83 using the Gemini-South telescope and Gemini Multi-Object Spectrograph, we have discovered one object whose spectrum shows very broad lines at Hα, [O I] λλ6300, 6363, and [O III] λλ4959, 5007, similar to those from other objects classified as "late time supernovae". Although six historical supernovae have been observed in M83 since 1923, none were seen at the location of this object. Hubble Space Telescope (HST) Wide Field Camera 3 images show a nearly unresolved emission source, while Chandra and ATCA data reveal a bright X-ray source and nonthermal radio source at the position. Objects in other galaxies showing similar spectra are only decades post-supernova, which raises the possibility that the supernova that created this object occurred during the last century but was missed. Using photometry of nearby stars from the HST data, we suggest the precursor was at least 17 M ☉, and the presence of broad Hα in the spectrum makes a type II supernova likely. The supernova must predate the 1983 Very Large Array radio detection of the object. We suggest examination of archival images of M83 to search for evidence of the supernova event that gave rise to this object, and thus provide a precise age. |
| first_indexed | 2025-11-14T07:22:47Z |
| format | Journal Article |
| id | curtin-20.500.11937-17774 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T07:22:47Z |
| publishDate | 2015 |
| publisher | Institute of Physics Publishing |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-177742019-02-19T05:35:12Z A newly recognized very young supernova remnant in M83 Blair, W. Winkler, P. Long, K. Whitmore, B. Kim, H. Soria, Roberto Kuntz, K. Plucinsky, P. Dopita, M. Stockdale, C. As part of a spectroscopic survey of supernova remnant candidates in M83 using the Gemini-South telescope and Gemini Multi-Object Spectrograph, we have discovered one object whose spectrum shows very broad lines at Hα, [O I] λλ6300, 6363, and [O III] λλ4959, 5007, similar to those from other objects classified as "late time supernovae". Although six historical supernovae have been observed in M83 since 1923, none were seen at the location of this object. Hubble Space Telescope (HST) Wide Field Camera 3 images show a nearly unresolved emission source, while Chandra and ATCA data reveal a bright X-ray source and nonthermal radio source at the position. Objects in other galaxies showing similar spectra are only decades post-supernova, which raises the possibility that the supernova that created this object occurred during the last century but was missed. Using photometry of nearby stars from the HST data, we suggest the precursor was at least 17 M ☉, and the presence of broad Hα in the spectrum makes a type II supernova likely. The supernova must predate the 1983 Very Large Array radio detection of the object. We suggest examination of archival images of M83 to search for evidence of the supernova event that gave rise to this object, and thus provide a precise age. 2015 Journal Article http://hdl.handle.net/20.500.11937/17774 10.1088/0004-637X/800/2/118 Institute of Physics Publishing fulltext |
| spellingShingle | Blair, W. Winkler, P. Long, K. Whitmore, B. Kim, H. Soria, Roberto Kuntz, K. Plucinsky, P. Dopita, M. Stockdale, C. A newly recognized very young supernova remnant in M83 |
| title | A newly recognized very young supernova remnant in M83 |
| title_full | A newly recognized very young supernova remnant in M83 |
| title_fullStr | A newly recognized very young supernova remnant in M83 |
| title_full_unstemmed | A newly recognized very young supernova remnant in M83 |
| title_short | A newly recognized very young supernova remnant in M83 |
| title_sort | newly recognized very young supernova remnant in m83 |
| url | http://hdl.handle.net/20.500.11937/17774 |