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203 papers · 1 filter
The Coupled Tidal Evolution of the Moons and Spins of Warm Exoplanets
Yubo Su, Melaine Saillenfest
Context: The Solar System giant planets harbour a wide variety of moons. Moons around exoplanets are plausibly similarly abundant, even though most of them are likely too small to…
Oort Cloud Formation and Evolution in Star Clusters
Justine C. Obidowski, Jeremy J. Webb, Simon Portegies Zwart +1
It is unknown if an Oort cloud reaches its maximum mass within its star's birth cluster or millions of years later. Complicating the Oort cloud evolution process is the fact that c…
Stellar Obliquity Excitation via Disk Dispersal-Driven Resonances in Binaries
Yubo Su, Dong Lai
The stellar obliquity of a planetary system is often used to help constrain the system's formation and evolution. One of the mechanisms to reorient the stellar spin involves a secu…
Rossby wave instability in weakly ionized protoplanetary disks. II. radial B-fields
Can Cui, Zijin Wang
Building on our first paper in this series, we investigate the impact of radial magnetic fields and non-ideal magnetohydrodynamic (MHD) effects - specifically, Ohmic resistivity, H…
The instability mechanism of compact multiplanet systems
Caleb Lammers, Sam Hadden, Norman Murray
To improve our understanding of orbital instabilities in compact planetary systems, we compare suites of -body simulations against numerical integrations of simplified dynamical…
A new timestep criterion for N-body simulations
Dang Pham, Hanno Rein, David S. Spiegel
We derive a new criterion for estimating characteristic dynamical timescales in N-body simulations. The criterion uses the second, third, and fourth derivatives of particle positio…