Published October 1983
| Version v1
Journal article
Frequency analysis of β Cephei variables in NGC 6231
Creators
- 1. Council for Scientific and Industrial Research, Cape Town (South Africa). South African Astronomical Observatory
- 2. Sydney Univ. (Australia). School of Physics
Description
Photometric observations are presented for four recently discovered β Cephei variables in the very young open cluster NGC 6231. Fourier analyses of about 500 observations of each star were performed to determine the oscillation frequency spectra. Comparison with variables in NGC 3293 shows that the β Cep stars in NGC 6231 are only slightly evolved from the ZAMS, indicating that the instability strip is at least one magnitude wide. Though the periods of the β Cep stars in NGC 6231 are much shorter than those in NGC 3293, the pulsation constants are about the same. (author)
Additional details
Publishing Information
- Journal Title
- Mon. Not. R. Astron. Soc.
- Journal Volume
- 205
- Journal Issue
- 1
- Series
- Mon. Not. R. Astron. Soc.
- Journal Page Range
- 309-320
- ISSN
- 0035-8711
INIS
- Country of Publication
- United Kingdom
- Country of Input or Organization
- United Kingdom
- INIS RN
- 15026466
- Subject category
- S79: ASTROPHYSICS, COSMOLOGY AND ASTRONOMY;
- Resource subtype / Literary indicator
- Numerical Data
- Descriptors DEI
- CEPHEIDS; EXPERIMENTAL DATA; FREQUENCY ANALYSIS; GALAXY CLUSTERS; OSCILLATIONS; PHOTOMETRY; STAR EVOLUTION; VISIBLE RADIATION
- Descriptors DEC
- DATA; ELECTROMAGNETIC RADIATION; INFORMATION; NUMERICAL DATA; PULSATING VARIABLE STARS; RADIATIONS; STARS; VARIABLE STARS