Optical Studies of UHURU Sources. X. The Photometric History of he 2-177(=3U 1639-62?)
Abstract
A study of Harvard photographs has revealed that since 1889 the peculiar emission-line star He 2-177 has varied in a quasi-periodic manner between B magnitudes 10.1 and 13.6. He 2-177 is compared with the slow nova RR Tel and with the peculiar nova Carinae, both of which showed brightness oscillations near times of their outbursts. Subject headings: novae - variable stars - x-ray sources
- Publication:
-
The Astrophysical Journal
- Pub Date:
- September 1974
- DOI:
- 10.1086/181598
- Bibcode:
- 1974ApJ...192L..89L