Abstract
Some core-collapse supernovae show clear signs of interaction with dense circumstellar material that often appears to be non-spherical. Circumstellar nebulae around supernova progenitors provide clues to the origin of that asymmetry in immediate pre-supernova evolution. Here I discuss outstanding questions about the formation of the ring nebula around SN1987A and some implications of similar ring nebulae around Galactic B supergiants. Several clues hint that SN1987A's nebula may have been ejected in an LBV-like event, rather than through interacting winds in a transition from a red supergiant to a blue supergiant.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 154-156 |
| Number of pages | 3 |
| Journal | Revista Mexicana de Astronomia y Astrofisica: Serie de Conferencias |
| Volume | 33 |
| State | Published - 2008 |
| Externally published | Yes |
| Event | Massive Stars: Fundamental Parameters and Circumstellar Interactions - Carilo, Buenos Aires, Argentina Duration: Dec 11 2006 → Dec 14 2006 |
Keywords
- Circumstellar matter
- Stars: evolution
- Stars: winds, outows
- Supernovae: individual (SN1987A)
ASJC Scopus subject areas
- Space and Planetary Science
- Astronomy and Astrophysics