An asteroseismic study of the β Cephei star θ Ophiuchi: Photometric results
- Author(s)
- Gerald Handler, R R Shobbrook, T Mokgwetsi
- Abstract
We have carried out a three-site photometric campaign for the β Cephei star θ Oph from 2003 April to August. 245 h of differential photoelectric uvy photometry were obtained during 77 clear nights. The frequency analysis of our measurements has resulted in the detection of seven pulsation modes within a narrow frequency interval between 7.116 and 7.973 c d-1. No combination or harmonic frequencies have been found. We have performed a mode identification of the individual pulsations from our colour photometry that shows the presence of one radial mode, one rotationally split ℓ = 1 triplet and possibly three components of a rotationally split ℓ = 2 quintuplet. We discuss the implications of our findings and point out the similarity of the pulsation spectrum of θ Oph to that of another β Cephei star, V836 Cen
- Organisation(s)
- Department of Astrophysics
- External organisation(s)
- Australian National University, North-West University
- Journal
- Monthly Notices of the Royal Astronomical Society
- Volume
- 362
- Pages
- 612-618
- No. of pages
- 7
- ISSN
- 0035-8711
- DOI
- https://doi.org/10.1111/j.1365-2966.2005.09341.x
- Publication date
- 2005
- Peer reviewed
- Yes
- Austrian Fields of Science 2012
- 103003 Astronomy
- Portal url
- https://ucrisportal.univie.ac.at/en/publications/7ac904ac-abe7-405f-86ad-27029fa99b4e