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A&A Supplement Series, Vol. 126, November II 1997, 81-90

Received July 7, 1996; accepted February 27, 1997

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

D.C. Fostertex2html_wrap1213 - P.B. Byrnetex2html_wrap1213 - S.L. Hawleytex2html_wrap1217,gif - W.R.J. Rollestontex2html_wrap1219

Send offprint request: D.C. Foster
tex2html_wrap535  Armagh Observatory, College Hill, Armagh BT61 9DG, N. Ireland
e-mail: dcf@star.arm.ac.uk, pbb@star.arm.ac.uk
tex2html_wrap535  Dept. of Physics and Astronomy, Michigan State University, East Lansing, MI 48824-1116, U.S.A.
e-mail: slh@pillan.pa.msu.edu
tex2html_wrap537  Dept. of Pure and Applied Physics, The Queen's University of Belfast, Belfast BT7 1NN, N. Ireland
e-mail: R.Rolleston@Queens-Belfast.ac.uk

Abstract:

We present the results of VRI photometry of the young open cluster IC 2602. Two tex2html_wrap_inline1195 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 12<V<18.5 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, tex2html_wrap_inline1199, 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 tex2html_wrap_inline1201 photometry for a subset of the stars.

keywords: stars: evolution -- stars: late-type -- open clusters: individual; IC 2602





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