Numerous Old Starburst Galaxies in the Local Universe
Abstract
Old starburst galaxies are deficient in O stars and hence do not exhibit strong line emission in the optical regime. However, there remain many B stars, which are expected to heat dust grains and generate strong continuum emission in the far-infrared. The IRAS data for a statistically complete sample of nearby galaxies reveal for the first time that such objects are as numerous as 30%-40% of the local galaxy population.
- Publication:
-
The Astrophysical Journal
- Pub Date:
- December 2000
- DOI:
- 10.1086/317883
- arXiv:
- arXiv:astro-ph/0009454
- Bibcode:
- 2000ApJ...545L.103M
- Keywords:
-
- Galaxies: Starburst;
- Galaxies: Stellar Content;
- Infrared: Galaxies;
- Astrophysics
- E-Print:
- 9 pages, 2 figures, to appear in The Astrophysical Journal (Letters)