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

Free access article

Issue		Astron. Astrophys. Suppl. Ser. Volume 126, Number 1, November_II 1997


Page(s)		81 - 90
DOI		http://dx.doi.org/10.1051/aas:1997251

DOI: 10.1051/aas:1997251

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. Foster - P.B. Byrne - S.L. Hawley^, - W.R.J. Rolleston

Send offprint request: D.C. Foster
Armagh Observatory, College Hill, Armagh BT61 9DG, N. Ireland
e-mail: dcf@star.arm.ac.uk, pbb@star.arm.ac.uk
Dept. of Physics and Astronomy, Michigan State University, East Lansing, MI 48824-1116, U.S.A.
e-mail: slh@pillan.pa.msu.edu
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 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, , 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.

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

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