64 citations · 205 across the 24 of their papers we have counts for
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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…
Betelgeuse: Detection of the Expanding Wake of the Companion Star
Andrea K. Dupree, Paul I. Cristofari, Morgan MacLeod +1
Recent analyses conclude that Betelgeuse, a red supergiant star (HD 39801), likely has a companion object with a period of about 2000 days orbiting at only 2.3 stellar radii, deep…
Radial Velocity and Astrometric Evidence for a Close Companion to Betelgeuse
Morgan MacLeod, Sarah Blunt, Robert J. De Rosa +10
We examine a century of radial velocity, visual magnitude, and astrometric observations of the nearest red supergiant, Betelgeuse, in order to reexamine the century-old assertion t…
The Evolution of Binaries Embedded Within Common Envelopes
Alejandra Rosselli-Calderon, Ricardo Yarza, Ariadna Murguia-Berthier +5
Triple stellar systems allow us to study stellar processes that cannot be attained in binary stars. The evolutionary phases in which the stellar members undergo mass exchanges can…
The Impact of Angular Momentum Loss on the Outcomes of Binary Mass Transfer
Reinhold Willcox, Morgan MacLeod, Ilya Mandel +1
We use the rapid binary population synthesis code COMPAS to investigate commonly used prescriptions for the determination of mass transfer stability in close binaries and the orbit…
Left Ringing: Betelgeuse Illuminates the Connection Between Convective outbursts, Mode switching, and Mass Ejection in Red Supergiants
Morgan MacLeod, Andrea Antoni, Caroline D. Huang +2
Betelgeuse, the nearest red supergiant, dimmed to an unprecedented level in early 2020. The star emerged from this Great Dimming episode with its typical, roughly 400-day pulsation…