Computer Science – Numerical Analysis
Scientific paper
Nov 1994
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994apj...435l..43g&link_type=abstract
Astrophysical Journal, Part 2 - Letters (ISSN 0004-637X), vol. 435, no. 1, p. L43-L46
Computer Science
Numerical Analysis
35
Astronomical Photography, Globular Clusters, Magellanic Clouds, Pre-Main Sequence Stars, Stellar Evolution, Stellar Luminosity, Ultraviolet Photometry, Astronomical Models, Hubble Space Telescope, Numerical Analysis
Scientific paper
Hubble Space Telescope-Wide Field/Planetary Camera-2 (HST-WFPC2) optical and ultraviolet imaging observations of the young double cluster NGC 1850 in the Large Magellanic Cloud (LMC) are presented. The main cluster, NGC 1850A, is a globular-like cluster and has an age of 50 +/- 10 Myr, while the subcluster, NGC 1850B, which is more loosely distributed, is very young at 4.3 +/- 0.9 Myr. Its young age is confirmed by the detection of a pre-main-sequence population of stars associated to it. The two clusters have considerably different IMF slopes, with the main cluster having a flat slope (f(m) proportional to m-1.4 +/- 0.2) and the young cluster a much steeper one (f(m) proportional to m-2.6 +/- -0.1). The LMC field star population displays a broad range of ages, from approximately 0.5 Gyr up to more than 4 Gyr.
Ewald Shawn P.
Gilmozzi Robert
Kinney E. K.
Panagia Nino
Romaniello Martino
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