7 papers
A Homogeneous Catalog of Rossiter-McLaughlin Systems: Distinct - Trends in Three Gas-Giant Mass Regimes
Xian-Yu Wang, Songhu Wang, Konstantin Batygin
Stellar obliquity () and orbital eccentricity () trace the dynamical histories of close-in giant planets, but the current observational picture is assembled from heterogeneo…
Hot Jupiters' Isolation Is Not Unique to High-Eccentricity Tidal Migration
Brandon Radzom, Songhu Wang, Bonan Pu +2
Conventionally, the observed isolation of hot Jupiters, marked by a paucity of nearby low-mass planetary companions, has been interpreted as evidence of high-eccentricity tidal mig…
Nature of HD 251108: an RS CVn binary with a long-term evolving spot
Xinlin Zhao, Song Wang, B. Fuhrmeister +5
Recently, the Lobster Eye Imager for Astronomy (LEIA) detected the longest-lasting and most energetic stellar X-ray flare event from HD 251108. In this work, we re-determined the a…
Unified Formation Channel of Hot and Warm Jupiters via Planet-Planet Scattering
Julia Esposito, Gongjie Li, Songhu Wang
Recent observations show distinct orbital architectures for hot and warm Jupiters: hot Jupiters span a wide range of stellar obliquities and tend to host distant companions without…
Evidence for Primordial Alignment II: Insights from Stellar Obliquity Measurements for Hot Jupiters in Compact Multiplanet Systems
Brandon Thomas Radzom, Jiayin Dong, Malena Rice +5
A significant fraction of hot Jupiters have orbital axes misaligned with their host stars' spin axes. The large stellar obliquities of these giants have long been considered potent…
Statistical Reevaluation of the USP Classification Boundary: Smaller Planets Within 1 Day, Larger Period Ratios Below 2 Days
Armaan V. Goyal, Songhu Wang
Terrestrial worlds with day, known as ultra-short period planets (USPs), comprise a physically distinct population whose origins may be attributed to various possible forma…