77 citations · 380 across the 19 of their papers we have counts for
7 papers · 1 filter
Optical and near-IR photometric study of the open cluster NGC 637 and NGC 957
R. K. S. Yadav, Brijesh Kumar, A. Subramaniam +2
We present UBVRI CCD photometry in the region of the open clusters NGC 637 and NGC 957. The radii are found to be 4.2 arcmin and 4.3 arcmin. Their reddenings E(B-V) are 0.64+/-0.05…
Multi-wavelength study of a young open cluster NGC 7419
Himali Joshi, Brijesh Kumar, K. P. Singh +3
Using UBVRI Halpha CCD photometric observations and the archival NIR and X-ray data, we have carried out a multi-wavelength study of a young star cluster NGC 7419. An age of 22.5+/…
Optical Observations of GRB 050401 Afterglow : A case for Double Jet Model
Atish Kamble, Kuntal Misra, D. Bhattacharya +1
The afterglow of GRB 050401 presents several novel and interesting features : [1] An initially faster decay in optical band than in X-rays. [2] A break in the X-ray light curve aft…
Optical polarimetric study of open clusters: Distribution of Interstellar matter towards NGC 654
Biman J. Medhi, Maheswar. G, J. C. Pandey +2
We present new B, V and R linear polarimetric observations for 61 stars towards the region of the young open cluster NGC 654. In this study we found evidence for the presence of at…
Multiwavelength study of the transient X-ray binary IGR J01583+6713
Ramanpreet Kaur, Biswajit Paul, Brijesh Kumar +1
We have investigated multiband optical photometric variability and stability of the H line profile of the transient X-ray binary IGR J01583+6713. We set an upper limit of 0.05 m…
A study of the long term evolution of quasi periodic oscillations in the accretion powered X-ray pulsar 4U 1626-67
Ramanpreet Kaur, Biswajit Paul, Brijesh Kumar +1
We report here a study of the long term properties of Quasi Periodic Oscillations (QPO) in an unusual accreting X-ray pulsar, 4U 1626--67. This is a unique accretion powered X-ray…