Detection of High-Velocity Na$\;$I Absorption Toward the Stellar Remnant of SN 1181 AD
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arXiv
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| Autores principales: | , |
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| Formato: | Preprint |
| Publicado: |
2026
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| Acceso en línea: | |
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| _version_ | 1866910105446907904 |
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| author | Garnavich, Peter Fesen, Robert A. |
| author_facet | Garnavich, Peter Fesen, Robert A. |
| contents | We report the detection of weak high-velocity Na$\;$I absorption at V$_{\odot}$ = $-61.0\pm0.2$ km s$^{-1}$ in the spectrum of the stellar remnant at the center of the Galactic supernova remnant of 1181 AD. This velocity is not unlike that seen in old, more evolved SN remnants, but is much less than the remnant's $\simeq10^{3}$ km s$^{-1}$ expanding optical nebula. We briefly discuss its possible nature and origin. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2604_04275 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Detection of High-Velocity Na$\;$I Absorption Toward the Stellar Remnant of SN 1181 AD Garnavich, Peter Fesen, Robert A. Astrophysics of Galaxies Solar and Stellar Astrophysics We report the detection of weak high-velocity Na$\;$I absorption at V$_{\odot}$ = $-61.0\pm0.2$ km s$^{-1}$ in the spectrum of the stellar remnant at the center of the Galactic supernova remnant of 1181 AD. This velocity is not unlike that seen in old, more evolved SN remnants, but is much less than the remnant's $\simeq10^{3}$ km s$^{-1}$ expanding optical nebula. We briefly discuss its possible nature and origin. |
| title | Detection of High-Velocity Na$\;$I Absorption Toward the Stellar Remnant of SN 1181 AD |
| topic | Astrophysics of Galaxies Solar and Stellar Astrophysics |
| url | https://arxiv.org/abs/2604.04275 |