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A Search for Variable B Stars in the Northern Open Clusters

Published online by Cambridge University Press:  12 April 2016

Andrzej Pigulski ,
Mikolaj Jerzykiewicz  and
Grzegorz Kopacki
Andrzej Pigulski
Affiliation:
Wroclaw University Observatory, ul. Kopernika 11, 51-622 Wroclaw, PolandElectronic mail:[email protected]
Mikolaj Jerzykiewicz
Affiliation:
Wroclaw University Observatory, ul. Kopernika 11, 51-622 Wroclaw, PolandElectronic mail:[email protected]
Grzegorz Kopacki
Affiliation:
Wroclaw University Observatory, ul. Kopernika 11, 51-622 Wroclaw, PolandElectronic mail:[email protected]

Abstract

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In April 1994 we started a program of searching for variable B-type stars in young open clusters. The equipment consisted of a 60-cm reflecting telescope and a CCD camera with a Johnson’s B filter. Up to date we obtained nearly 1500 CCD frames of the central regions of four clusters: IC4996, NGC7235, NGC7510, and NGC654. In the range from B 0 to B 5, the photometric accuracy we achieve allows detection of short-period variability with amplitudes of about 5 mmag or greater. In this note we present the short-period variable stars we found in NGC 7235 and NGC 7510.

Type
Part 2. Poster Papers
Information
International Astronomical Union Colloquium , Volume 155: Astrophysical Applications of Stellar Pulsation , 1995 , pp. 293 - 294
Copyright
Copyright © Astronomical Society of the Pacific 1995

References

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