The Search for Bright Variable Stars in Open Cluster NGC 6819.

Details The Search for Bright Variable Stars in Open Cluster NGC 6819. The Search for Bright Variable Stars in Open Cluster NGC 6819.

Jan 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aas...21344209t&link_type=abstract

American Astronomical Society, AAS Meeting #213, #442.09; Bulletin of the American Astronomical Society, Vol. 41, p.320

Astronomy and Astrophysics

Astronomy

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Scientific paper

During this research period data was taken for seven nights at the 1m telescope at Mt. Laguna Observatory for the open cluster NGC 6819. For four of the nights data was taken using a V-band filter. For the three nights remaining nights the data was taken using an R-band filter. Photometry was done using the ISIS image subtraction package. Six new variable stars were located using these techniques. These variable types include a pulsating variable, five detached eclipsing binaries. Of the detached eclipsing binaries, three are near the cluster turnoff and two in the blue straggler region(and one of these has total eclipses). Nine previously known variables(six contact binaries, two detached eclipsing binaries and one near-contact binary) were also studied.

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