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New insights on the duration distribution of long GRBs from Collapsars
Omer Bromberg, Ehud Nakar, Tsvi Piran +1
According the Collapsar model long gamma-ray bursts (LGRBs) involve relativistic jets that puncture the envelope of a collapsing star, and produced the γ-rays after they break out.…
An observational imprint of the Collapsar model of long Gamma Ray Bursts
Omer Bromberg, Ehud Nakar, Tsvi Piran +1
The Collapsar model provides a theoretical framework for the well known association between long gamma-ray bursts (GRBs) and collapsing massive stars. A bipolar relativistic jet, l…
A Revised View of the Transient Radio Sky
D. A. Frail, S. R. Kulkarni, E. O. Ofek +2
We report on a re-analysis of archival data from the Very Large Array for a sample of ten long duration radio transients reported by Bower and others. These transients have an impl…
Evidence for a compact Wolf-Rayet progenitor for the Type Ic supernova PTF 10vgv
A. Corsi, E. O. Ofek, A. Gal-Yam +22
We present the discovery of PTF 10vgv, a Type Ic supernova detected by the Palomar Transient Factory, using the Palomar 48-inch telescope (P48). R-band observations of the PTF 10vg…
Are low luminosity GRBs generated by relativistic jets?
Omer Bromberg, Ehud Nakar, Tsvi Piran
Low luminosity gamma-ray bursts (ll-GRBs) constitute a sub-class of gamma-ray bursts (GRBs) that plays a central role in the GRB-supernova connection. While ll-GRBs differ from typ…
The propagation of relativistic jets in external media
Omer Bromberg, Ehud Nakar, Tsvi Piran +1
Relativistic jets are ubiquitous in astrophysical systems that contain compact objects. They transport large amounts of energy to large distances from the source, and their interac…