Optical Observations of GRB 050401 Afterglow : A case for Double Jet Model (2008)
Kamble, Atish, Misra, Kuntal, Bhattacharya, D., Sagar, Ram
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 after $\sim$ 0.06 day...
The Rapidly Flaring Afterglow of the Very Bright and Energetic GRB 070125 (2008)
Updike, Adria C., Haislip, Joshua B., Nysewander, Melissa C., Fruchter, Andrew S., Kann, D. Alexander, Klose, Sylvio, ...
We report on multi-wavelength observations, ranging from the X-ray to radio wave bands, of the IPN-localized gamma-ray burst GRB 070125. Spectroscopic observations reveal the presence of absorption...
Misra, Kuntal, Sahu, D. K., Anupama, G. C., Pandey, Kavita
We present $UBVRI$ CCD photometry and optical spectra of the type Ia supernova SN 2003hx which appeared in the galaxy NGC 2076, obtained till $\sim$ 146 days after the epoch of $B$ band maximum. The...
Type IIP supernova SN 2004et: a multiwavelength study in X-ray, optical and radio (2007)
Misra, Kuntal, Pooley, Dave, Chandra, Poonam, Bhattacharya, D., Ray, Alak K., Sagar, Ram, ...
Restricted Access. An open-access version is available at arXiv.org (one of the alternative locations)
Observations of the Optical Afterglow of GRB 050319 : Wind to ISM transition in view (2007)
Kamble, Atish, Resmi, L., Misra, Kuntal
The collapse of a massive star is believed to be the most probable progenitor of a long GRB. Such a star is expected to modify its environment by stellar wind. The effect of such a circum-stellar...
Type IIP Supernova SN 2004et: A Multi-Wavelength Study in X-Ray, Optical and Radio (2007)
Misra, Kuntal, Pooley, Dave, Chandra, Poonam, Bhattacharya, D., Ray, Alak K., Sagar, Ram, ...
We present X-ray, broad band optical and low frequency radio observations of the bright type IIP supernova SN 2004et. The \cxo observed the supernova at three epochs, and the optical coverage spans a...
Observations of the Optical Afterglow of GRB 050319: The Wind-to-ISM Transition in View (2007)
Kamble, Atish, Resmi, L, Misra, Kuntal
The collapse of a massive star is believed to be the most probable progenitor of a long gamma-ray burst (GRB). Such a star is expected to have its environment modified by the stellar wind. The effect...
Observations of the optical afterglow of GRB 050319: The wind-to-ISM transition in view (2007)
Kamble, Atish, Resmi, L., Misra, Kuntal
Restricted Access. An open-access version is available at arXiv.org (one of the alternative locations. Articles older than 2 years are open to all at the journal site (alternative location)
Optical observations of GRB 060124 afterglow: A case for an injection break (2007)
Misra, Kuntal, Bhattacharya, D., Sahu, D. K., Sagar, Ram, Anupama, G. C., Castro-Tirado, A. J., ...
We present broad band optical afterglow observations of a long duration GRB 060124 using the 1.04-m Sampurnanand Telescope at ARIES, Nainital and the 2.01-m HCT at IAO, Hanle, including the earliest...
Optical observations of GRB 060124 afterglow: a case for an injection break (2007)
Misra, Kuntal, Bhattacharya, D., Sahu, D.K., Sagar, R., Anupama, G.C., Castro-Tirado, A.J., ...
Restricted Access. An open-access version is available at arXiv.org (one of the alternative locations)
Observations of the Optical Afterglow of GRB 050319: The Wind-to-ISM Transition in View (2007)
Kamble, Atish, Resmi, L, Misra, Kuntal
The collapse of a massive star is believed to be the most probable progenitor of a long gamma-ray burst (GRB). Such a star is expected to have its environment modified by the stellar wind. The effect...
Misra, Kuntal, Resmi, L., Pandey, S. B., Bhattacharya, D., Sagar, R.
We present the CCD Cousins R band photometric observations of the afterglow of GRB 041006. The multiband afterglow evolution is modelled using an underlying `hard' electron energy spectrum with a...
Multiband optical photometry and bolometric light curve of the Type Ia supernova 2004S (2005)
Misra, Kuntal, Kamble, Atish P., Bhattacharya, D., Sagar, R.
Restricted Access. An open access version is available at arXiv.org.(one of the alternative locations)
Multiband Optical Photometry and Bolometric Light Curve of the Type Ia Supernova 2004S (2005)
Misra, Kuntal, Kamble, Atish P., Bhattacharya, D., Sagar, Ram
We present $\rm BVR_{c}I_{c}$ broad band CCD photometry of the Type Ia supernova SN 2004S, which appeared in the galaxy MCG-05-16-021, obtained during 2004 February 12 to March 22. Multiband and...
Misra, Kuntal, Resmi, L., Pandey, S.B., Bhattacharya, D., Sagar, R.
We present the CCD Cousins R band photometric observations of the afterglow of GRB 041006. The multiband afterglow evolution is modelled using an underlying `hard' electron energy spectrum with a...