Binary Stars among Cataclysmic Variables. IV. Photoelectric Observations of U Geminorium Near the Start of an Outburst.
Abstract
Three-color, photoelectric observations of the eclipsing binary U Gem, obtained December 3, 19 (U.T.), are presented. There is evidence that a major outburst of this dwarf nova may have begun durir the course of the night, thereby accounting for the marked differences between the light and color curv at the two observed primary minima. It is not clear whether the seat of the outburst is the blue coe ponent, the red one, or Asewbere in the system.
- Publication:
-
The Astrophysical Journal
- Pub Date:
- February 1964
- DOI:
- 10.1086/147777
- Bibcode:
- 1964ApJ...139..476M