SAO stars with infrared excess in the IRAS Point Source Catalog.
Abstract
We have undertaken a search for SAO stars with infrared excess in the IRAS Point Source Catalog. In contrast to previous searches, the entire IRAS (12)-(25)-(60) color-color diagram was used. This selection yielded a sample of 462 stars, of which a significant number are stars with circumstellar material. The stars selected can be identified as pre-main-sequence stars, Be stars, protoplanetary systems, post-AGB stars, etc. A number of objects are (visual) binary stars. Characteristic temperatures and IR excesses are calculated and their relations to spectral type are investigated.
- Publication:
-
Astronomy and Astrophysics Supplement Series
- Pub Date:
- December 1992
- Bibcode:
- 1992A&AS...96..625O
- Keywords:
-
- Astronomical Catalogs;
- Color-Color Diagram;
- Infrared Astronomy Satellite;
- Infrared Stars;
- Point Sources;
- Stellar Envelopes;
- Asymptotic Giant Branch Stars;
- B Stars;
- Binary Stars;
- Pre-Main Sequence Stars;
- Stellar Evolution;
- Astrophysics