Volume 380, Number 2, December III 2001
|Page(s)||599 - 608|
|Section||Interstellar and circumstellar matter|
|Published online||15 December 2001|
A search for new variable stars in NGC 6231*
University of Brussels (VUB), Pleinlaan 2, 1050 Brussels, Belgium
2 Royal Observatory of Belgium, Ringlaan 3, 1180 Brussels, Belgium
3 European Southern Observatory, Alonso de Cordova 3107, Santiago, Chile
4 Nordic Optical Telescope, Apartado 474, 38700 Santa Cruz de La Palma, Canary Islands, Spain
Corresponding author: T. Arentoft, email@example.com
Accepted: 15 October 2001
NGC 6231 is a well-studied young open cluster hosting several variable stars. In the field six β Cephei stars, several eclipsing binaries and one δ Scuti star are known (as well as a foreground δ Scuti star). In an ongoing effort to map and study the variability in NGC 6231, we present new results based on CCD time-series data optimised for the bright β Cephei stars as well as data optimised for much fainter stars. We detect 17 new variable stars in the cluster, including three δ Scuti stars, three γ Doradus candidates, three Slowly Pulsating B star candidates and one, or possibly two, new β Cephei stars.
Key words: stars: variables: general / open clusters and associations: individual: NGC 6231 / techniques: photometric / methods: data analysis
© ESO, 2001
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.