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B,V Photometry of the Variable Star V9 in the Globular Cluster 47 Tuc

Published online by Cambridge University Press:  15 February 2018

Michael Corwin  and
Bruce Carney
Michael Corwin
Affiliation:
Dept. Astronomy, University of North Carolina, Charlotte NC 28223, U.S.A.
Bruce Carney
Affiliation:
Dept. Physics & Astronomy, Univ. North Carolina, Chapel Hill, NC 27599, U.S.A.

Abstract

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We present BV CCD photometry of the variable star V9 in the globular cluster 47 Tuc. V, B, and (B – V) light curves are given. A colour-magnitude diagram based on four V and four B frames is given. V9's location on the diagram is considerably brighter and bluer than the edge of the red horizontal branch. Its radial velocity indicates that V9 is a member of the cluster.

Type
Windows on the Instability Strip
Information
International Astronomical Union Colloquium , Volume 139: New Perspectives on Stellar Pulsation and Pulsating Variable Stars , 1993 , pp. 421
Copyright
Copyright © Cambridge University Press 1993