3 papers
astro-ph.HE2026
The New Status Qvo? SN 2021qvo is Another 2003fg-like Type Ia Supernova with a Rising Light-Curve Bump
I. A. Abreu Paniagua, W. B. Hoogendam, D. O. Jones +24
In recent years, multiple Type Ia supernovae (SNe Ia) have been observed with ''bumps'' in their rising light curves shortly after explosion. Here, we present SN 2021qvo: a SN Ia t…
astro-ph.HE2025
Effect of positronium on the -ray spectra and energy deposition in Type Ia supernovae
Anirban Dutta, Andrew Fullard, Wolfgang Kerzendorf +5
Type Ia supernovae (SNe Ia) are powered by the radioactive decay of isotopes such as Ni and Co, making their -ray spectra useful probes of the explosion mechanism…
astro-ph.IM2025
Measuring Type Ia Supernova Angular-Diameter Distances with Intensity Interferometry
A. G. Kim, P. E. Nugent, Xingzhuo Chen +2
This paper investigates the potential of intensity interferometry, based on the Hanbury Brown-Twiss effect, for measuring supernova sizes and distances. Through optimized telescope…