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astro-ph.EP2025
On the coincidence between the close passage of HD7977 and the Pliocene-Pleistocene transition
Zhuoya Cao, Abraham Loeb, Morgan MacLeod
The Oort Cloud's dynamical evolution is significantly influenced by both the galactic tide and stellar flybys. This study investigates the particular case of HD7977's close encount…
astro-ph.EP2025
Probing the extent of WASP-52 b's atmosphere. High-resolution observations and 3D modeling insights
F. Nail, A. Oklopčić, M. MacLeod +5
WASP-52 b is an inflated hot Jupiter with a large Roche lobe filling fraction, positioned in the hot Neptune desert. Previous in-transit observations of the helium triplet at 10833…
astro-ph.EP2025
Empirical Constraints on Tidal Dissipation in Exoplanet Host Stars
Sarah C. Millholland, Morgan MacLeod, Felicia Xiao
The orbits of short-period exoplanets are sculpted by tidal dissipation. However, the mechanisms and associated efficiencies of these tidal interactions are poorly constrained. We…