161 citations · 670 across the 18 of their papers we have counts for
4 papers · 1 filter
NuSTAR observations of magnetar 1E 1841-045
Hongjun An, Romain Hascoet, Victoria M. Kaspi +18
We report new spectral and temporal observations of the magnetar 1E 1841-045 in the Kes 73 supernova remnant obtained with the Nuclear Spectroscopic Telescope Array (NuSTAR). Combi…
The prompt-early afterglow connection in GRBs
R. Mochkovitch, F. Daigne, R. Hascoet
We study the observed correlations between the duration and luminosity of the early afterglow plateau and the isotropic gamma-ray energy release during the prompt phase. We discuss…
On the origin of GeV emission in gamma-ray bursts
Andrei M. Beloborodov, Romain Hascoet, Indrek Vurm
The most common progenitors of gamma-ray bursts (GRBs) are massive stars with strong stellar winds. We show that the GRB blast wave in the wind should emit a bright GeV flash. It i…
Estimates for Lorentz factors of gamma-ray bursts from early optical afterglow observations
R. Hascoet, A. M. Beloborodov, F. Daigne +1
The peak time of optical afterglow may be used as a proxy to constrain the Lorentz factor Gamma of the gamma-ray burst (GRB) ejecta. We revisit this method by including bursts with…