CCD photometry of late-type stars in the young open cluster IC 2602

¹ Armagh Observatory, College Hill, Armagh BT61 9DG, N. Ireland
² Dept. of Physics and Astronomy, Michigan State University, East Lansing, MI 48824-1116, U.S.A.
³ Dept. of Pure and Applied Physics, The Queen's University of Belfast, Belfast BT7 1NN, N. Ireland

Send offprint request to: D.C. Foster

Received: 7 July 1996
Accepted: 27 February 1997

Abstract

We present the results of VRI photometry of the young open cluster IC 2602. Two fields were observed in February and May 1991 using the 1-m Swope telescope at Las Campanas. Using theoretical isochrones obtained from D'Antona & Mazzitelli (1994), and allowing for observational and other uncertainties, we identify 78 primary candidate members with from their positions on colour-magnitude diagrams. We compare the cluster field with an offset field of similar galactic latitude and estimate the contamination due to background stars to be large, , as might be expected given its low galactic latitude. We also compare our photometry with that given for the X-ray detected stars of Randich et al. (1995). We present complimentary narrow band photometry for a subset of the stars.