A. Subramaniam

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The stellar population and star clusters around six regions in the Large Magellanic Cloud (LMC) is studied to understand the correlation between star formation and cluster formation rates. We used the stellar data base of the OGLE II LMC survey and the star cluster catalogues. The observed distribution of stellar density on the colour-magnitude diagrams(More)
Using imaging that shows four magnitudes of main sequence stars, we have discovered that the Galactic globular cluster NGC 1851 is surrounded by a halo that is visible from the tidal radius of 700 arcsec (41 pc) to more than 4500 arcsec (>250 pc). This halo is symmetric and falls in density as a power law of r −1.24. It contains approximately 0.1% of the(More)
We present U BV RI CCD photometry in the region of the open clusters NGC 637 and NGC 957. The radii are found to be 4. ′ 2 and 4. ′ 3. Their reddenings E(B − V) are 0.64 ± 0.05 mag and 0.71 ± 0.05 mag and their distances, from main sequence fitting are 2.5 ± 0.2 kpc and 2.2 ± 0.2 kpc. Comparison with Z = 0.02 isochrones leads to an age of 10 ± 5 Myr for(More)
On the determination of age, and mass functions of stars in young open star clusters from the analysis of their luminosity functions ABSTRACT Based on the CCD observations of remote young open clusters NGC 2383, NGC 2384, NGC 4103, NGC 4755, NGC 7510 and Hogg 15, we construct their observed lumi-nosity functions (LFs). The observed LFs are corrected for(More)
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