Browsing by Subject "GRB afterglows"

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Emission from GRBs and their afterglows : Indian observations

Sagar, R (Astronomical Society of India, 2001)

The study of Gamma-ray bursts, electromagnetically the most luminous events in the Universe though only for a few seconds, was revolutionized in 1997 when the Italian-Dutch X-ray satellite BeppoSAX started providing the ...
Optical observations and multiband modelling of the afterglow of GRB041006 : Evidence of a hard electron energy spectrum

Misra, K; Resmi, L; Pandey, S. B; Bhattacharya, D; Sagar, R (Astronomical Society of India, 2005-12)

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 p1 ~ 1.3. The burst appears ...
Optical observations of GRB afterglows from India

Sagar, R; Misra, K (Astronomical Society of India, 2005-06)

Optical observations of GRB afterglows provide information about GRB distances as well as their isotropic/non-isotropic nature of emission. More than 30 GRB fields have been probed by us during 1999 to 2003, out of which ...

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