Variable stars in the field of open cluster NGC 6819 - II
Abstract
We report on the discovery of 141 further variable stars found in the field of the open cluster NGC 6819. The stars were identified from time-series photometric data obtained on the Isaac Newton Telescope, La Palma, during two observing runs covering the 19 nights between 1999 June 22-30 and 1999 July 22-31. The variables found include 53 eclipsing binaries, of which eight stars appear to be RS CVns, in addition to 70 stars showing spot activity, 13 showing long-period variability and five variables of other types.
- Publication:
-
Monthly Notices of the Royal Astronomical Society
- Pub Date:
- April 2005
- DOI:
- 10.1111/j.1365-2966.2005.08751.x
- Bibcode:
- 2005MNRAS.358..795S
- Keywords:
-
- binaries: eclipsing;
- stars: variables: other;
- open clusters and associations: individual: NGC 6819