Abstract
The supernova remnant 30 Dor B is embedded in an H II region around the OB association LH 99, and has been suggested to be a Crab-type remnant. To determine the spatial extent and kinematic properties of this supernova remnant, we have obtained long-slit echelle observations in the Ha and [N II ] lines and imaging Fabry-Perot observations in the Ha line. We find that 30 Dor B is partially obscured by a dark cloud with which the supernova remnant also interacts. The size of 30 Dor B is much larger than previously thought, making it much older than the Crab Nebula. If the progenitor of the supernova was formed coevally with LH 99, then it would have been more massive than the O3 members of the OB association.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 1545-1551 |
| Number of pages | 7 |
| Journal | Astronomical Journal |
| Volume | 103 |
| Issue number | 5 |
| DOIs | |
| State | Published - May 1992 |
ASJC Scopus subject areas
- Astronomy and Astrophysics
- Space and Planetary Science