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astro-ph.HE2025
Rotational Dynamics in Pulsational Pair-Instability Supernovae: Implications for Mass-Loss and Transient Events
Trang N. Huynh, Emmanouil Chatzopoulos, Nageeb Zaman
Pulsational pair-instability supernovae (PPISNe) are transient events occurring in progenitor stars with helium cores of approximately 32-65 solar masses, where rapid electron-posi…
astro-ph.HE2025
Multidisciplinary Science in the Multimessenger Era
Eric Burns, Christopher L. Fryer, Ivan Agullo +82
Astrophysical observations of the cosmos allow us to probe extreme physics and answer foundational questions on our universe. Modern astronomy is increasingly operating under a hol…
astro-ph.HE2024
Spectroscopic Modeling of Luminous Transients Powered by H-Rich and He-Rich Circumstellar Interaction
Gururaj A. Wagle, Emmanouil Chatzopoulos, Michael J. Baer
In this study, we perform detailed spectroscopic modeling to analyze the interaction of circumstellar material (CSM) with ejecta in both hydrogen-rich and hydrogen-poor superlumino…