JKBV photometry of NGC 2141 (Carraro+, 2001)

Details JKBV photometry of NGC 2141 (Carraro+, 2001) JKBV photometry of NGC 2141 (Carraro+, 2001)

Jun 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001ycat..33720879c&link_type=abstract

VizieR On-line Data Catalog: J/A+A/372/879. Originally published in: 2001A&A...372..879C

Other

Clusters: Open, Photometry: Ubv, Photometry: Infrared

Scientific paper

We report CCD optical (B and V passbands) and near IR (J and K bands) observations in the region of the old open cluster NGC 2141. By combining the two sets of photometry (500 stars in common) we derive new estimates of the cluster's fundamental parameters. We confirm that the cluster is 2.5Gyrs old, but, with respect to previous investigations, we obtain a slightly larger reddening (E(B-V)=0.40), and a slightly shorter distance (3.8kpc) from the Sun. Finally, we present the Luminosity Function (LF) in the V band, which is another age indicator. We provide a good fit for the age range inferred from isochrones by assuming the Kroupa et al. (1993MNRAS.262..545K) IMF up to MV=5.0. We interpret the disagreement at fainter magnitudes as evidence of mass segregation. (1 data file).

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