Published June 1990
| Version v1
Journal article
Binaries in globular clusters - Outburst and quiescence spectra of three cataclysmics
- 1. Montreal Universite, Montreal (Canada)
- 2. Space Telescope Science Institute, Baltimore, MD (USA)
Description
As part of an ongoing effort to understand the properties of binaries in globulars, the first spectrum of an old nova in a globular cluster has been obtained. H-alpha emission confirms the presence of the quiescent nova within 1 arcsec of the optical candidate proposed by Shara et al (1986). The Shara et al. candidate is clearly seen to be multiple. The first outburst spectrum of the candidate dwarf nova V4 in M30 has also been obtained. The extremely blue continuum and strong Balmer absorption are typical of an outbursting dwarf nova (DN), and support Margon and Downes' (1983) DN classification (based on a spectrum of V4 in quiescence). 15 refs
Additional details
Publishing Information
- Journal Title
- Astronomical Journal
- Journal Volume
- 99
- Series
- Astron. J.
- Journal Page Range
- 1858-1862
- ISSN
- 0004-6256
- CODEN
- ANJOA
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 21084973
- Subject category
- S79: ASTROPHYSICS, COSMOLOGY AND ASTRONOMY;
- Descriptors DEI
- ABSORPTION SPECTRA; BALMER LINES; BINARY STARS; CHARGE-COUPLED DEVICES; ERUPTIVE VARIABLE STARS; NOVAE; SPECTRA; SPECTROPHOTOMETRY; STAR CLUSTERS
- Descriptors DEC
- SEMICONDUCTOR DEVICES; STARS; VARIABLE STARS