172 citations · 856 across the 18 of their papers we have counts for
18 papers
Were the Obliquities in DI Herculis Excited by an Unseen Tertiary Companion?
Kassandra R. Anderson, Joshua N. Winn
The eclipsing binary DI Herculis garnered interest for several decades because of an apparent disagreement between the observed and calculated values of the apsidal precession rate…
Further Evidence for Tidal Spin-Up of Hot Jupiter Host Stars
Roberto A. Tejada Arevalo, Joshua N. Winn, Kassandra R. Anderson
For most hot Jupiters around main-sequence Sun-like stars, tidal torques are expected to transfer angular momentum from the planet's orbit to the star's rotation. The timescale for…
On a Possible Solution to the Tidal Realignment Problem for Hot Jupiters
Kassandra R. Anderson, Joshua N. Winn, Kaloyan Penev
Hot stars with hot Jupiters have a wide range of obliquities, while cool stars with hot Jupiters tend to have low obliquities. An enticing explanation for this pattern is tidal rea…
Excitation of Spin-Orbit Misalignments in Stellar Binaries with Circumbinary Disks: Application to DI Herculis
Kassandra R. Anderson, Dong Lai
The large spin-orbit misalignments in the DI Herculis stellar binary system have resolved the decades-long puzzle of the anomalously slow apsidal precession rate, but raise new que…
Giant Planet Scatterings and Collisions: Hydrodynamics, Merger-Ejection Branching Ratio, and Properties of the Remnants
Jiaru Li, Dong Lai, Kassandra R. Anderson +1
Planetary systems with sufficiently small orbital spacings can experience planetary mergers and ejections. The branching ratio of mergers vs ejections depends sensitively on the tr…
In-Situ Scattering of Warm Jupiters and Implications for Dynamical Histories
Kassandra R. Anderson, Dong Lai, Bonan Pu
Many warm Jupiters (WJs) have substantial eccentricities, which are linked to their formation and migration histories. This paper explores eccentricity excitation of WJs due to pla…
Chaotic Tides in Migrating Gas Giants: Forming Hot and Transient Warm Jupiters via High-Eccentricity Migration
Michelle Vick, Dong Lai, Kassandra R. Anderson
High-eccentricity migration is an important channel for the formation of hot Jupiters (HJs). In particular, Lidov-Kozai (LK) oscillations of orbital eccentricity/inclination induce…
Teetering Stars: Resonant Excitation of Stellar Obliquities by Hot and Warm Jupiters with External Companions
Kassandra R. Anderson, Dong Lai
Stellar spin-orbit misalignments (obliquities) in hot Jupiter systems have been extensively probed. Such obliquities may reveal clues about hot Jupiter dynamical histories. Common…
How do External Companions Affect Spin-Orbit Misalignment of Hot Jupiters?
Dong Lai, Kassandra R. Anderson, Bonan Pu
Consider a planet with its orbital angular momentum axis aligned with the spin axis of its host star. To what extent does an inclined distant companion (giant planet or binary star…
Moderately Eccentric Warm Jupiters from Secular Interactions with Exterior Companions
Kassandra R. Anderson, Dong Lai
Recent studies have proposed that most warm Jupiters (WJs, giant planets with semi-major axes in the range of 0.1-1 AU) probably form in-situ, or arrive in their observed orbits th…
Eccentricity and Spin-Orbit Misalignment in Short-Period Stellar Binaries as a Signpost of Hidden Tertiary Companions
Kassandra R. Anderson, Dong Lai, Natalia I. Storch
Eclipsing binaries are observed to have a range of eccentricities and spin-orbit misalignments (stellar obliquities). Whether such properties are primordial, or arise from post-for…
Dynamics of Stellar Spin Driven by Planets Undergoing Lidov-Kozai Migration: Paths to Spin-Orbit Misalignment
Natalia I. Storch, Dong Lai, Kassandra R. Anderson
Many exoplanetary systems containing hot Jupiters (HJs) exhibit significant misalignment between the spin axes of the host stars and the orbital angular momentum axes of the planet…
A Herschel view of protoplanetary disks in the Ori cluster
Karina Maucó, Jesús Hernández, Nuria Calvet +6
We present new Herschel PACS observations of 32 T Tauri stars in the young (3 Myr) Ori cluster. Most of our objects are K & M stars with large excesses at 24 m. We use…
Formation and Stellar Spin-Orbit Misalignment of Hot Jupiters from Lidov-Kozai Oscillations in Stellar Binaries
Kassandra R. Anderson, Natalia I. Storch, Dong Lai
Observed hot Jupiter (HJ) systems exhibit a wide range of stellar spin-orbit misalignment angles. The origin of these HJs remains unclear. This paper investigates the inward migrat…
Chaotic Dynamics of Stellar Spin in Binaries and the Production of Misaligned Hot Jupiters
Natalia I. Storch, Kassandra R. Anderson, Dong Lai
Many exoplanetary systems containing hot Jupiters are observed to have highly misaligned orbital axes relative to the stellar spin axes. Kozai-Lidov oscillations of orbital eccentr…
Viscous Evolution and Photoevaporation of Circumstellar Disks due to External FUV Radiation Fields
Kassandra R. Anderson, Fred C. Adams, Nuria Calvet
This paper explores the effects of FUV radiation fields from external stars on circumstellar disk evolution. Disks residing in young clusters can be exposed to extreme levels of FU…
Evolution of Planetary Systems with Time Dependent Stellar Mass Loss
Fred C. Adams, Kassandra R. Anderson, Anthony M. Bloch
Observations indicate that intermediate mass stars, binary stars, and stellar remnants often host planets; a complete explanation of these systems requires an understanding of how…
Effects of Collisions with Rocky Planets on the Properties of Hot Jupiters
Kassandra R. Anderson, Fred C. Adams
Observed Hot Jupiters exhibit a wide range of physical properties. For a given mass, many planets have inflated radii, while others are surprisingly compact and may harbor large ce…