UBV CCD Photometry of the LMC Double Cluster NGC 1850

Details UBV CCD Photometry of the LMC Double Cluster NGC 1850 UBV CCD Photometry of the LMC Double Cluster NGC 1850

Oct 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995jkas...28..177l&link_type=abstract

Journal of the Korean Astronomical Society, vol. 28, no. 2, p. 177-196

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3

Galaxies: Photometry, Galaxies: Star Clusters, Galaxies: Stellar Content Magellanic Cloud

Scientific paper

We present UBV CCD photometry of the double cluster NGC 1850 located at the NW edge of the bar of the Large Magellanic Cloud. The Color-Magnitude diagram shows that NGC 1850 has a prominent population of massive core-He burning stars which is incomparably richer than any other known star clusters. The reddening is estimated from the (U-B) - (B-V) diagram to be E(B-V) = 0.15+-0.05. We have estimated the ages of NGC 1850 and a very compact blue star cluster (NGC 1850A) located at about 30" west of NGC 1850 using isochrones based on the convective overshooting models: 80+-10 Myrs and 5+-2 Myrs, respectively. Several evidence suggest that it is probably the compact cluster NGC 1850A that is responsible for the arc-shaped nebulosity (Henize N 103B) surrounding the east side of NGC 1850.

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