8 papers
The Gamma-ray Burst Jet Energy Distribution Suggests A Quasi-universal, Weakly Magnetized Jet Evolving Over Cosmic Time
Nicole M. Lloyd-Ronning, Fabio De Colle, Gal Birenbaum +2
We present distributions of gamma-ray burst observed and inferred properties for those GRBs with redshifts. We show that the isotropic energy distribution, which spans over four or…
The Lifetimes of High-redshift Quasars Suggest Magnetic Disk Support
Jarrett Johnson, Phoebe Upton Sanderbeck, Nicole Lloyd-Ronning +2
It has recently been suggested that a variety of data on active galactic nuclei (AGN) can be explained if AGN disks are supported against gravitational fragmentation by magnetic fi…
The GRB Intrinsic Duration Distribution: Progenitor Insights Across Cosmic Time
Nicole M. Lloyd-Ronning, Omer Bromberg, Tsvi Piran
We present the distribution of the intrinsic duration of gamma-ray bursts' prompt emission. This expands upon the analysis of Bromberg et al., 2012 and Bromberg et al. 2013 who sho…
Kilonovae and Long-duration Gamma-ray Bursts
Marko RistiÄ, Brandon L. Barker, Samuel Cupp +5
Recent detections of kilonova-like emission following long-duration gamma-ray bursts GRB211211A and GRB230307A have been interpreted as originating from the merger of two neutron s…
Simulations of Interacting Binary Systems -- Pathways to Radio Bright GRB Progenitors
Angel Hernandez, Roseanne M. Cheng, Nicole M. Lloyd-Ronning +1
Although the association of gamma-ray bursts with massive stellar death is on firm footing, the nature of the progenitor system and the key ingredients required for a massive star…
Mapping Gamma-Ray Bursts: Distinguishing Progenitor Systems Through Machine Learning
Sharleen N. Espinoza, Nicole M. Lloyd-Ronning, Michela Negro +2
We present an analysis of gamma-ray burst (GRB) progenitor classification, through their positions on a Uniform Manifold Approximation and Projection (UMAP) plot, constructed by Ne…