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Spectrum Analysis of the Type Ib Supernova 1999dn: Probable Identifications of C II and H-alpha | J. S. Deng
; Y. L. Qiu
; J. Y. Hu
; K. Hatano
; D. Branch
; | Date: |
15 May 2000 | Subject: | astro-ph | Abstract: | Low resolution spectra of SN 1999dn at early times are presented and compared with synthetic spectra generated with the parameterized supernova synthetic-spectrum code SYNOW. We find that the spectra of SN 1999dn strongly resemble those of SN 1997X and SN 1984L, and hence we classify it as a Type Ib event. Line-identifications are established through spectrum synthesis. Strong evidence of both H-alpha and C II 6580 is found. We infer that H-alpha appears first, before the time of maximum brightness, and then is blended with and finally overwhelmed by the C II line after maximum; this favors a thin high-velocity hydrogen skin in this Type Ib supernova. | Source: | arXiv, astro-ph/0005298 | Services: | Forum | Review | PDF | Favorites |
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