activity
20172026
most citedThe Fast, Luminous Ultraviolet Transient AT2018cow: Extreme Supernova, or Disruption of a Star by an Intermediate-Mass Black Hole?

230 citations · 891 across the 43 of their papers we have counts for

collaborators
Showing 2023Show all

7 papers · 1 filter

astro-ph.HE2023

An Explanation of GRB Fermi-LAT Flares and High-Energy Photons in Stratified Afterglows

Nissim Fraija, Boris Betancourt Kamenetskaia, Antonio Galván-Gámez +6

The second {\itshape Fermi}/LAT gamma-ray burst (GRB) catalog (2FLGC) spanning the first decade of operations by the LAT collaboration was recently released. The closure relations…

astro-ph.HE2023

Unraveling Parameter Degeneracy in GRB Data Analysis

Keneth Garcia-Cifuentes, Rosa Leticia Becerra, Fabio De Colle +1

Gamma-ray burst (GRB) afterglow light curves and spectra provide information about the density of the environment, the energy of the explosion, the properties of the particle accel…

astro-ph.HE2023

Machine-Learning Enhanced Photometric Analysis of the Extremely Bright GRB 210822A

Camila Angulo-Valdez, Rosa L. Becerra, Margarita Pereyra +16

We present analytical and numerical models of the bright long GRB 210822A at . The intrinsic extreme brightness exhibited in the optical, which is very similar to other br…

astro-ph.HE2023

Understanding the Nature of the Optical Emission in Gamma-Ray Bursts: Analysis from TAROT, COATLI, and RATIR Observations

R. L. Becerra, A. Klotz, J. L. Atteia +12

We collected the optical light curve data of 227 gamma-ray bursts (GRBs) observed with the TAROT, COATLI, and RATIR telescopes. These consist of 133 detections and 94 upper limits.…

astro-ph.HE2023★ 18 cited

Deciphering the unusual stellar progenitor of GRB 210704A

R. L. Becerra, E. Troja, A. M. Watson +16

GRB~210704A is a burst of intermediate duration (~s) followed by a fading afterglow and an optical excess that peaked about 7 days after the explosion. Its propert…

astro-ph.HE2023★ 19 cited

Identification of Extended Emission Gamma-Ray-Bursts Candidates using Machine Learning

K. Garcia-Cifuentes, R. L. Becerra, F. De Colle +2

Gamma-Ray bursts (GRBs) have been traditionally classified based on their duration. The increasing number of extended emission (EE) GRBs, lasting typically more than 2 seconds but…

astro-ph.HE2023★ 10 cited

A structured jet explains the extreme GRB 221009A

B. O'Connor, E. Troja, G. Ryan +29

Long duration gamma-ray bursts (GRBs) are powerful cosmic explosions, signaling the death of massive stars. Among them, GRB 221009A is by far the brightest burst ever observed. Due…