263 citations · 1.5k across the 32 of their papers we have counts for
32 papers
JWST Detection of Hydrocarbon Ices and Methane Gas on Makemake
Silvia Protopapa, Ian Wong, Emmanuel Lellouch +15
JWST/NIRSpec observations of Makemake reveal a chemically complex surface and evidence of gaseous CH. Our spectral modeling indicates a surface composition consisting of CH…
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…
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…
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…
Evidence for stellar mergers of evolved massive binaries: blue supergiants in the Large Magellanic Cloud
Athira Menon, Andrea Ercolino, Miguel A. Urbaneja +8
Blue supergiants are the brightest stars in their host galaxies and yet their evolutionary status has been a long-standing problem in stellar astrophysics. In this pioneering work,…
Betelgeuse as a Merger of a Massive Star with a Companion
Sagiv Shiber, Emmanouil Chatzopoulos, Bradley Munson +1
We investigate the merger between a 16 solar mass star, on its way to becoming a red supergiant (RSG), and a 4 solar mass main-sequence companion. Our study employs three-dimension…