Abstract
We investigate the possibility that the expanding ring of gas surrounding the O star λ Ori could be due to the explosion of a type II supernova some 300,000-370,000 years ago. Based upon the observed properties of the ring and a set of simple equations describing the radius and expansion velocity of a supernova remnant as a function of time, we find that the expanding ring could be the result of a supernova occurring in a flattened molecular cloud. This model could explain the peculiar motion of λ Ori relative to the ring of gas if λ Ori were the binary companion to the progenitor star of the supernova.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 892-894 |
| Number of pages | 3 |
| Journal | Astronomy and astrophysics |
| Volume | 309 |
| Issue number | 3 |
| State | Published - 1996 |
| Externally published | Yes |
Keywords
- ISM: clouds
- Pulsars: individual: Geminga
- Stars: λ Ori
- Supernova: remnants
ASJC Scopus subject areas
- Astronomy and Astrophysics
- Space and Planetary Science