6 papers
Ultra Heavy Cosmic Rays from Magnetars
Anirudh Patel, Rebecca Diesing, Brian Metzger
Matter ejected from the neutron star crust during a magnetar giant flare will undergo -process nucleosynthesis during decompression. Ultra heavy ions () can be acceler…
Fast X-ray Transient Detection with AXIS: application to Magnetar Giant Flares
Michela Negro, Zorawar Wadiasingh, George Younes +6
Magnetar giant flares (MGFs) are among the most luminous high-energy transients in the local universe, consisting of a short, intense MeV gamma-ray spike followed by a softer, puls…
Heavy element nucleosynthesis in rotating proto-magnetar winds
Tejas Prasanna, Matthew S. B. Coleman, Todd A. Thompson +3
The astrophysical origin of elements synthesized through the rapid neutron capture process (process) is a long standing mystery. The hot and dense environments of core-collapse…
r-Process Nucleosynthesis and Radioactively Powered Transients from Magnetar Giant Flares
Anirudh Patel, Brian D. Metzger, Jared A. Goldberg +3
We present nucleosynthesis and light-curve predictions for a new site of the rapid neutron capture process (-process) from magnetar giant flares (GFs). Motivated by observations…
Direct evidence for r-process nucleosynthesis in delayed MeV emission from the SGR 1806-20 magnetar giant flare
Anirudh Patel, Brian D. Metzger, Jakub Cehula +3
The origin of heavy elements synthesized through the rapid neutron capture process (-process) has been an enduring mystery for over half a century. Cehula et al. (2024) recently…
The Effects of -Process Enrichment in Hydrogen-Rich Supernovae
Anirudh Patel, Jared A. Goldberg, Mathieu Renzo +1
Core-collapse supernovae are candidate sites for the rapid neutron capture process (-process). We explore the effects of enrichment from -process nuclei on the light-curves o…