activity
20242026
collaborators

5 papers

astro-ph.HE2026

SN 2007it on the RISE -- a radio detection of an interacting supernova 18 years post-explosion

F. Acero, R. Z. E. Alsaberi, M. Arias +17

We report the first detection of radio emission from the Type II supernova SN 2007it, located at a distance of 12.2 Mpc in NGC 5530. The observations were obtained with the Austral…

astro-ph.HE2026

GRB 240205B: A Reverse Shock Detected in Rapid Response Radio Observations

S. I. Chastain, G. E. Anderson, A. J. van der Horst +6

Here we present broadband radio modeling of GRB 240205B, using observations with the Australia Telescope Compact Array (ATCA) and the South African MeerKAT radio telescope. Our obs…

astro-ph.HE2025

First Results from the PanRadio Gamma-Ray Burst Collaboration: The 400-day Afterglow of GRB 230815A

James K. Leung, Gemma E. Anderson, Alexander J. van der Horst +26

We introduce the PanRadio Gamma-ray Burst (GRB) program carried out on the Australia Telescope Compact Array: a systematic, multi-year, radio survey of all southern $\textit{Swift}…

astro-ph.HE2025

The radio flare and multi-wavelength afterglow of the short GRB 231117A: energy injection from a violent shell collision

G. E. Anderson, G. P. Lamb, B. P. Gompertz +64

We present the early radio detection and multi-wavelength modeling of the short gamma-ray burst (GRB) 231117A at redshift . The Australia Telescope Compact Array automatic…

astro-ph.CO2024

Optical and near-infrared photometry of 94 type II supernovae from the Carnegie Supernova Project

J. P. Anderson, C. Contreras, M. D. Stritzinger +43

Type II supernovae (SNeII) mark the endpoint in the lives of hydrogen-rich massive stars. Their large explosion energies and luminosities allow us to measure distances, metalliciti…