5 papers
Gaia astrometry disfavors a binary origin for long secondary periods
Cheyanne Shariat, Kareem El-Badry, Morgan MacLeod +1
Approximately one-third of luminous pulsating red giant stars exhibit long secondary periods (LSPs): stable photometric variability with periods of several months to years in addit…
Enhancement of the Rate of Tidal Disruption Events in Active Galactic Nuclei due to the Sweeping Secular Resonance Mechanism
Xiaochen Zheng, Morgan MacLeod, Douglas N. C. Lin +2
Tidal disruption event (TDE) rates in active galactic nuclei (AGN) consistently exceed predictions from two-body relaxation, particularly in post-starburst and green valley galaxie…
Cold day-side winds shape large leading streams in evaporating exoplanet atmospheres
F. Nail, M. MacLeod, A. OklopÄiÄ +3
Recent observations of planetary atmospheres in HAT-P-32 b and HAT-P-67 b reveal extensive outflows reaching up to hundreds of planetary radii. The helium 1083 nm light curves for…
Streams and Bubbles: Tidal Shaping of Planetary Outflows
Morgan MacLeod, Antonija OklopÄiÄ, Fabienne Nail +1
Planets lose mass to atmospheric outflows, and this mass loss is thought to be central in shaping the bimodal population of gaseous giant and rocky terrestrial exoplanets in close…
sunset: A database of synthetic atmospheric-escape transmission spectra for nearly every transiting planet
Dion Linssen, Antonija OklopÄiÄ, Morgan MacLeod
Studying atmospheric escape from exoplanets can provide important clues about the formation and evolution of exoplanets. Observational evidence of atmospheric escape has been obtai…