Variable stars in the field of open cluster NGC 6819

Details Variable stars in the field of open cluster NGC 6819 Variable stars in the field of open cluster NGC 6819

Mar 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002mnras.330..737s&link_type=abstract

Monthly Notices of the Royal Astronomical Society, Volume 330, Issue 3, pp. 737-754.

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Binaries: Eclipsing, Stars: Variables: Other, Open Clusters And Associations: Individual: Ngc 6819, Binaries: Eclipsing, Stars: Variables: Other, Open Clusters And Associations: Individual: Ngc 6819

Scientific paper

We report on the discovery of 25 variable stars plus 13 suspected variables 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 12 eclipsing binaries with an additional three suspected, nine BY Draconis systems, plus four variables of other types, including one star believed to be a Cepheid. Three of the 15 eclipsing binaries are believed to be cluster members. Details of a further 10 suspected variable stars are also included.

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