3 citations · 5 across the 5 of their papers we have counts for
13 papers
UBVRI CCD photometry of the OB associations Bochum 1 and Bochum 6
R. K. S. Yadav, Ram Sagar
We report the first deep 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 Bo…
SN 2002ap, the hypernova of class Ic
S. B. Pandey, D. K. Sahu, G. C. Anupama +2
The supernova SN 2002ap was discovered in the outer regions of the nearby spiral M74 on January 29.4 UT. Early photometric and spectroscopic observations indicate the supernova bel…
On mass and velocity distributions in members of star clusters : An analytical approach
S. Chatterjee, Brijesh Kumar, Ram Sagar
Dynamical evolution of stellar mass distribution in star clusters is analysed by considering simultaneously the effects of dynamical friction, stochastic heating and the gravitatio…
Aerosol contents at an altitude of ~2 km in central Himalayas
Ram Sagar, B. Kumar, P. Pant +3
Aerosols, both natural and anthropogenic, play an important role in the atmospheric science, by imparting radiative forcing and perturbing the radiative balance of the Earth atmosp…
Optical observations of the bright long duration peculiar GRB 021004 afterglow
S. B. Pandey, D. K. Sahu, L. Resmi +9
The CCD magnitudes in Johnson and Cousins and photometric passbands are determined for the bright long duration GRB 021004 afterglow from 2002 October 4 to 16 startin…
Optical and Radio observations of the bright GRB010222 afterglow: evidence for rapid synchrotron cooling?
R. Sagar, C. S. Stalin, D. Bhattacharya +8
We report photometric observations of the optical afterglow of GRB010222 in V,R and I passbands carried out at UPSO, Naini Tal between 22-27 Feb 2001. We determine CCD Johnson BV a…