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Variable Stars In NGC 4590*

Published online by Cambridge University Press:  12 April 2016

A. Terzan ,
B. Rutily  and
CH. Ounnas
CH. Ounnas
Affiliation:
Lyons Observatory, European Southern Observatory, France

Abstract

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The globular cluster NGC 4590 has been observed at Haute Provence Observatory (photographic photometry, 80-cm reflector, F/6) and at the European Southern Observatory (image-tube, 152-cm reflector, F/15).

  • – A sequence of red magnitudes, mr (λett ≅ 6400 Å) has been established around the cluster. It comprises 28 stars with magnitudes between 11.66 and 16.50.

  • – Five new variable stars were discovered in a one square degree field, centered on the cluster.

  • – Four other variable stars (No. 39, 40, 41, and 42) were discovered in the cluster.

Type
Part II / RR Lyrae Variables in Population II Systems
Information
International Astronomical Union Colloquium , Volume 21: Variable Stars in Globular Clusters and in Related Systems , August 1973 , pp. 76 - 81
Copyright
Copyright © Reidel 1973

Footnotes

*

Observations made in part at Haute Provence Observatory (C.N.R.S.).

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