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Browsing by Subject "Stars: Luminosity Function"

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A deep UBVRI CCD photometric study of the open clusters Tr1 and Be 11

Yadav, R. K. S; Sagar, R (Royal Astronomical Society, 2002-11)

We present deep UBVRI charge-coupled device (CCD) photometry for the young open star clusters Tr1 and Be11. The CCD data for Be11 are obtained for the first time. The sample consists of ~1500 stars reaching down to V~ 21 ...
A multicolour CCD photometric and mass function study of the distant southern open star clusters NGC 3105, NGC 3603, Melotte 105, Hogg 15, NGC 4815, Pismis 20 and NGC 6253

Sagar, R; Munari, U; de Boer, K. S (Royal Astronomical Society, 2001-10)

We derive cluster parameters and mass functions from new UBVRI CCD photometric observations of ~3500 stars reaching down to V~20mag for the distant southern open star clusters NGC 3105, NGC 3603, Melotte 105, Hogg 15, NGC ...
Star formation in young cluster NGC 1893

Sharma, S; Pandey, A. K; Ojha, D. K; Chen, W. P; Ghosh, S. K; Bhatt, B. C; Maheswar, G; Sagar, R (International Astronomical Union, 2008-05)

We have carried out a multi-wavelength study of the star forming region NGC 1893 to make a comprehensive exploration of the effects of massive stars on low mass star formation. Using deep optical U BV RI broad band, Hα ...
Stellar contents of two young open clusters: NGC 663 and 654

Pandey, A. K; Upadhyay, K; Ogura, K; Sagar, R; Mohan, V; Mito, H; Bhatt, H. C; Bhatt, B. C (Royal Astronomical Society, 2005-04)

UBVRI CCD photometry in a wide field around two young open clusters, NGC 663 and 654, has been carried out. Hα and polarimetric observations for the cluster NGC 654 have also been obtained. We use the photometric data to ...
Young LMC star clusters as a test for stellar evolutionary models.

Subramaniam, A; Sagar, R (The European Southern Observatory, 1995-05)

We compare the observed colour-magnitude diagrams (CMD) and the main sequence luminosity functions (LFs) of four Large Magellanic Cloud (LMC) star clusters namely, NGC 1711, NGC 2004, NGC 2164 and NGC 2214 with the synthetic ...
Young star clusters of our galaxy and the large magellanic cloud as test for stellar evolutionary models

Sagar, R; Subramaniam, A (Universidad Nacional Autonoma de Mexico, 1999)

A comparison of the colour-magnitude diagrams (CMDs) and the main sequence luminosity function (LF) of five young Galactic star clusters and four young Large Magellanic Cloud star clusters derived from precise CCD observations ...

Browsing by Subject "Stars: Luminosity Function"

Browsing by Subject "Stars: Luminosity Function"

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