17 citations · 103 across the 22 of their papers we have counts for
8 papers · 1 filter
Extremely luminous optical afterglow of an energetic gamma-ray burst GRB 230204B
Rahul Gupta, Judith Racusin, Vladimir Lipunov +47
Robotic telescope networks play an important role in capturing early and bright optical afterglows, providing critical insights into the energetics and emission mechanisms of GRBs.…
X-ray and gamma-ray timing of GRB 180720B, GRB 181222B, GRB 211211A and GRB 220910A observed with Fermi and ASIM
M. D. Caballero-Garcia, E. Gogus, J. Navarro-Gonzalez +20
We present a timing study of the gamma and X-ray observations and analysis of a sample of bright gamma-ray bursts (GRBs; i.e. GRB 180720B, GRB 181222B, GRB 211211A and GRB 220910A)…
The core collapse of a 16.5 M star
Amar Aryan, Shashi Bhushan Pandey, Rahul Gupta +2
We investigate the 1D stellar evolution of a 16.5 M zero-age main-sequence star having different initial rotations. Starting from the pre-main-sequence, the models evolve…
Prompt and afterglow analysis of the Fermi-LAT detected GRB 230812B
Amit K. Ror, S. B. Pandey, A. Aryan +2
Prompt emission of GRB 230812B stands out as one of the most luminous events observed by both the Fermi-GBM and LAT. Prompt emission spectral analysis (both time-integrated and res…
An Intermediate Luminosity GRB 210210A: The early onset of the external forward shock in the X-ray?
Rahul Gupta, A. K. Ror, S. B. Pandey +5
We have analyzed the prompt and afterglow characteristics of the intermediate luminosity burst ``GRB 210210A". Our prompt emission analysis indicates that GRB 210210A is among the…
Magnetar central engine powering the energetic GRB 210610B ?
Amit Kumar Ror, Shashi B. Pandey, Rahul Gupta +1
The bright GRB 210610B was discovered simultaneously by Fermi and Swift missions at redshift 1.13. We utilized broadband Fermi-GBM observations to perform a detailed prompt emissio…
Exploring Origin of Ultra-Long Gamma-ray Bursts: Lessons from GRB 221009A
Amit Kumar Ror, Rahul Gupta, Amar Aryan +4
The brightest Gamma-ray burst (GRB) ever, GRB 221009A, displays ultra-long GRB (ULGRB) characteristics, with a prompt emission duration exceeding 1000 s. To constrain the origin an…
A detailed time-resolved and energy-resolved spectro-polarimetric study of bright GRBs detected by AstroSat CZTI in its first year of operation
Rahul Gupta, S. B. Pandey, S. Gupta +11
The radiation mechanism underlying the prompt emission remains unresolved and can be resolved using a systematic and uniform time-resolved spectro-polarimetric study. In this paper…