2 papers
astro-ph.HE2025
A Late-time Radio Survey of Type Ia-CSM Supernovae with the Very Large Array
Olivia Griffith, Grace Showerman, Sumit K. Sarbadhicary +8
Type Ia-CSM supernovae (SNe) are a rare and peculiar subclass of thermonuclear SNe characterized by emission lines of hydrogen or helium, indicative of a high-density circumstellar…
astro-ph.HE2025
The Luminous, Slow-Rising Orphan Afterglow AT2019pim as a Candidate Moderately Relativistic Outflow
Daniel A. Perley, Anna Y. Q. Ho, Michael Fausnaugh +34
Classical gamma-ray bursts (GRBs) have two distinct emission episodes: prompt emission from ultrarelativistic ejecta and afterglow from shocked circumstellar material. While both c…