833 citations · 2.5k across the 47 of their papers we have counts for
34 papers · 1 filter
Planet-Driven Scatterings of Planetesimals Into a Star: Probability, Timescale and Applications
Laetitia Rodet, Dong Lai
A planetary system can undergo multiple episodes of intense dynamical activities throughout its life, resulting in the production of star-grazing planetesimals (or exocomets) and p…
On the pollution of white dwarfs by exo-Oort cloud comets
Christopher E. O'Connor, Dong Lai, Darryl Z. Seligman
A large fraction of white dwarfs (WDs) have metal-polluted atmospheres, which are produced by accreting material from remnant planetary systems. The composition of the accreted deb…
Giant planet engulfment by evolved giant stars: light curves, asteroseismology, and survivability
Christopher E. O'Connor, Lars Bildsten, Matteo Cantiello +1
About ten percent of Sun-like (-) stars will engulf a - planet as they expand during the red giant branch (RGB) or asymptotic giant branch (AGB) phas…
Eccentricity Growth of Massive Planets inside Cavities of Protoplanetary Discs
Marina M. Romanova, Alexander V. Koldoba, Galina V. Ustyugova +2
We carry out hydrodynamical simulations to study the eccentricity growth of a 1-30 Jupiter mass planet located inside the fixed cavity of a protoplanetary disc. The planet exchange…
Resonant Excitation of Planetary Eccentricity due to a Dispersing Eccentric Protoplanetary Disk: A New Mechanism of Generating Large Planetary Eccentricities
Jiaru Li, Dong Lai
We present a new mechanism of generating large planetary eccentricities. This mechanism applies to planets within the inner cavities of their companion protoplanetary disks. A mass…
Eccentric debris belts reveal the dynamical history of the companion exoplanet
Laetitia Rodet, Dong Lai
In recent years, a number of eccentric debris belts have been observed in extrasolar systems. The most common explanation for their shape is the presence of a nearby eccentric plan…