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Browsing by Subject "Mass function"

Browsing by Subject "Mass function"

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  • Infrared spectroscopic diagnostics for initial mass function 
    Ghosh, S. K; Mookerjea, B (Astronomical Society of India, 1999)
    The diagnostic values of various atomic/ nebular infrared spectral lines of relatively abundant elements (in different ionization states) in Galactic star forming regions, have been studied quantitatively. The code CLOUDY ...
  • NGC 1245 - an intermediate age open cluster 
    Subramaniam, A (Astronomical Society of India, 2003)
    The B, V CCD photometry of 916 stars in the field of the high galactic latitude intermediate age open cluster NGC 1245 is presented. The cluster parameters were estimated with the help of V vs(B-V) colour magnitude diagram ...
  • On the determination of age and mass functions of stars in young open star clusters from the analysis of their luminosity functions 
    Piskunov, A. E; Belikov, A. N; Sagar, R; Subramaniam, A (Royal Astronomical Society, 2004-04-21)
    We construct the observed luminosity functions of the remote young open clusters NGC 2383, 2384, 4103, 4755, 7510 and Hogg 15 from CCD observations of them. The observed LFs are corrected for field star contamination ...
  • Photometric studies of intermediate and old age galactic star clusters 
    Durgapal, A. K (Astronomical Society of India, 2001)
    We present a detailed analysis of five intermediate / old age open star clusters, based on the CCD UBVRI data. We have used a new colour index parameter (CIP), which is the difference in colour index between the blue turn ...
  • Studies of Young Stellar Objects 
    Yadav, R. K. S (Astronomical Society of India, 2003)
    We present a detailed study of four young open star clusters and two OB associations using deep CCD U B V R I and 2MASS J H Ks measurements. Physical parameters of the clusters have been estimated using optical as well as ...
  • UBVRI CCD photometry of the OB associations Bochum 1 and Bochum 6 
    Yadav, R. K. S; Sagar, R (Astronomical Society of India, 2003)
    We report the first deep $UBVRI$ CCD photometry of 2460 stars in the field of two poorly studied OB associations Bochum 1 and Bochum 6. We selected 15 and 14 probable members in Bochum 1 and Bochum 6 respectively using ...

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