246 citations · 3.8k across the 56 of their papers we have counts for
7 papers · 1 filter
On the Anti-Correlation between Duration and Redshift in Gamma-ray Bursts
Nicole M. Lloyd-Ronning, Jarrett L. Johnson, Roseanne M. Cheng +4
For gamma-ray bursts (GRBs) with durations greater than two seconds (so-called long GRBs), the intrinsic prompt gamma-ray emission appears, on average, to last longer for bursts at…
Properties of High-Redshift GRBs
Chris L. Fryer, Amy Y. Lien, Andrew Fruchter +5
The immense power of gamma-ray bursts (GRBs) make them ideal probes of the early universe. By using absorption lines in the afterglows of high-redshift GRBs, astronomers can study…
The Consequences of Gamma-ray Burst Jet Opening Angle Evolution on the Inferred Star Formation Rate
Nicole M. Lloyd-Ronning, Jarrett L. Johnson, Aycin Aykutalp
Gamma-ray burst (GRB) data suggest that the jets from GRBs in the high redshift universe are more narrowly collimated than those at lower redshifts. This implies that we detect rel…
The Evolution of Gamma-ray Burst Jet Opening Angle through Cosmic Time
Nicole Lloyd-Ronning, Valeria U. Hurtado, Aycin Aykutalp +2
Jet opening angles of long gamma-ray bursts (lGRBs) appear to evolve in cosmic time, with lGRBs at higher redshifts being on average more narrowly beamed than those at lower redshi…
On the Cosmological Evolution of Long Gamma-ray Burst Properties
Nicole M. Lloyd-Ronning, Aycin Aykutalp, Jarrett Johnson
We examine the relationship between a number of long gamma-ray burst (lGRB) properties (isotropic emitted energy, luminosity, intrinsic duration, jet opening angle) and redshift. W…
General Relativistic Instability Supernova of a Supermassive Population III Star
Ke-Jung Chen, Alexander Heger, Stan Woosley +3
The formation of supermassive Population III stars with masses 10,000 Msun in primeval galaxies in strong UV backgrounds at 15 may be the most viable pathway to…