4 papers · 1 filter
A Unified Ionization Framework for the Spectroscopic Diversity of Tidal Disruption Events
Lars L. Thomsen, Lixin Dai, Daniel Kasen +4
Optical tidal disruption events (TDEs) exhibit extremely broad emission lines (-) and are observationally classified into four spectroscopic typ…
Hydrodynamic Response of Mildly Evolved Common Envelope Donors in Luminous Red Novae
Tenley Hutchinson-Smith, Angela Twum, Enrico Ramirez-Ruiz
Luminous red novae trace unstable binary interactions in which common-envelope evolution can produce either a stellar merger or a surviving binary following envelope ejection. Rece…
Lithium Enrichment in a Subgiant Star with a Brown Dwarf Companion: A Planetary Engulfment Candidate
Brooke Kotten, Melinda Soares-Furtado, Ricardo Yarza +11
Theoretical models predict that subgiants within a narrow mass regime can retain detectable lithium enrichment signatures from planetary engulfment. We test this prediction using T…
The Landscape of Unstable Mass Transfer in Interacting Binaries and Its Imprint on the Population of Luminous Red Novae
Angela A. G. Twum, Alejandro Vigna-Gómez, Morgan MacLeod +4
A common-envelope (CE) phase occurs when a star engulfs its companion and is widely considered the primary channel for producing Luminous Red Novae (LRNe). In this study, we combin…