2 papers
astro-ph.SR2026
Weak-CN Stars Are Ordinary Cool Red Supergiants
Yuan-Sen Ting, Puragra Guhathakurta, Douglas Grion Filho +2
Weak CN absorption near ~8000 A has recently been detected in evolved red supergiants (RSGs) of 5-10 across three Local Group galaxies. These weak-CN RSGs sit in a narrow…
astro-ph.GA2025
Kinematical Modeling of the Resolved Stellar Outskirts of M32: Constraints on Tidal Stripping Scenarios
Ivanna Escala, Douglas Grion Filho, Puragra Guhathakurta +8
As the only compact elliptical close enough to resolve into individual stars, the satellite dwarf galaxy M32 provides a unique opportunity for exploring the origins of such rare ga…