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Wide-field variability survey of the globular cluster NGC 4833

Published online by Cambridge University Press:  18 February 2014

Grzegorz Kopacki
Grzegorz Kopacki*
Affiliation:
Instytut Astronomiczny, Uniwersytet Wrocławski, Kopernika 11, 51-622 Wrocław, Poland email: [email protected]
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Abstract

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We present preliminary results of the variability survey in the field of the globular cluster NGC 4833. We observed all 34 variable stars known in the cluster. In addition, we have found two new SX Phoenicis stars, one new RR Lyrae star, twelve new eclipsing systems mostly of the W Ursae Majoris type, nine new variable red giants, and ten new field-stars showing irregular variations. Properties of RR Lyrae stars indicate that NGC 4833 is an Oosterhoff's type II globular cluster.

Keywords

Galaxy: globular clusters: individual: NGC 4833stars: Population IIstars: variables: RR Lyraestars: variables: SX Phoenicis
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 9 , Symposium S301: Precision Asteroseismology , August 2013 , pp. 441 - 442
Copyright
Copyright © International Astronomical Union 2014 

References

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