Astronomy and Astrophysics – Astrophysics
Scientific paper
1995-03-17
Astronomy and Astrophysics
Astrophysics
LaTeX 2.09. 17 pages. 14 figures. Requires mn.sty and psfig.sty, which are included with the figures. Warning! UUencoded figur
Scientific paper
Johnson {\it BV} CCD observations have been made of the young Large Magellanic Cloud cluster NGC~2214 and a nearby field using the Anglo-Australian Telescope. It has been suggested in the literature that this elliptical cluster is actually two clusters in the process of merging. No evidence is found from profile fitting or the colour--magnitude diagrams to support this contention. Completeness factors are estimated for the CCD frames. These values are used in conjunction with luminosity functions to estimate the initial mass function (IMF) for NGC~2214. A power law is assumed for the IMF, with a good fit being found for the exponent (1 + $x$) = 2.01~$\pm$ 0.09. There is some indication that the low-mass end (less than or equal to 3 Solar Masses) has a lower gradient than the high-mass end of the derived IMF. This value is in reasonable agreement with literature values for other Magellanic IMFs, and not substantially different from those of the poorly determined Galactic IMFs, suggesting the possibility of a `universal' IMF over the Magellanic Clouds and our Galaxy in the mass range $\sim 1$ to $\sim 10$ Solar Masses.
Banks Timothy
Dodd Robert J.
Sullivan David J.
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