SN 1985f - Death of a Wolf-Rayet star
| Autor: | Mitchell C. Begelman, C. L. Sarazin |
|---|---|
| Rok vydání: | 1986 |
| Předmět: |
Physics
Solar mass Astrophysics::High Energy Astrophysical Phenomena Astronomy Astronomy and Astrophysics Astrophysics::Cosmology and Extragalactic Astrophysics Astrophysics Luminosity Supernova Wolf–Rayet star Space and Planetary Science Astrophysics::Solar and Stellar Astrophysics Pair-instability supernova Ejecta Supernova remnant Stellar evolution Astrophysics::Galaxy Astrophysics |
| Zdroj: | The Astrophysical Journal. 302:L59 |
| ISSN: | 1538-4357 0004-637X |
| DOI: | 10.1086/184637 |
| Popis: | The optical spectrum of SN 1985f has been analyzed, and the supernova ejecta is shown to contain approximately 5 or more solar masses of oxygen and very little hydrogen. It is suggested that the explosion resulted from the pair instability supernova of a WO Wolf-Rayet star of about 50 solar masses, and that the optical luminosity of the supernova is powered by the radioactive decay of Co-56 synthesized in the explosion. As calculated from the rate of the optical emission decay, the explosion occurred about 350 days before its discovery in February, 1985. It is believed that some of the oxygen-rich supernova remnants may also have been produced by explosions of WO stars. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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