78 citations · 129 across the 4 of their papers we have counts for
8 papers
X-ray flares following short gamma-ray bursts from shock heating of binary stellar companions
Andrew I. MacFadyen, Enrico Ramirez-Ruiz, Weiqun Zhang
The discovery of long-lasting (~100 s) X-ray flares following short gamma-ray bursts initially called into question whether they were truly classical short-hard bursts. Opinion ove…
The redshift distribution of gamma-ray bursts revisited
Priyamvada Natarajan, Badr Albanna, Jens Hjorth +3
In this letter, we calculate the redshift distribution of gamma-ray bursts assuming that they trace (i) the globally averaged star formation rate or (ii) the average metallicity in…
Small-scale variations in the radiating surface of the GRB 011211 jet
P. Jakobsson, J. Hjorth, E. Ramirez-Ruiz +12
We report the discovery of the afterglow of the X-ray rich, long-duration gamma-ray burst GRB 011211 and present evidence for oscillatory behaviour in its early optical light curve…
On the Central Engine of short Gamma-ray Bursts
Stephan Rosswog, Enrico Ramirez-Ruiz
We assess two mechanisms to produce a short GRB from a neutron star coalescence: the annihilation of neutrino and anti-neutrino pairs and magnetic processes within the remnant. We…
Accretion disk assembly and survival during the disruption of a neutron star by a black hole
Enrico Ramirez-Ruiz, William H. Lee
We study the formation of accretion disks resulting from dynamical three dimensional binary coalescence calculations, where a neutron star is tidally disrupted before being swallow…
Redshifts For 220 BATSE Gamma-Ray Bursts Determined by Variability and the Cosmological Consequences
E. E. Fenimore, E. Ramirez-Ruiz
We show that the time variability of a gamma-ray burst (GRB) appears to be correlated with the absolute luminosity of the burst: smooth bursts are intrinsically less luminous. This…