The three-body problem, which describes three masses interacting through Newtonian
gravity without any restrictions imposed on the initial positions and velocities of these …

At least two arguments suggest that the orbits of a large fraction of binary stars and
extrasolar planets shrank by 1-2 orders of magnitude after formation:(1) the physical radius …

We present EXOFAST, a fast, robust suite of routines written in IDL that is designed to fit
exoplanetary transits and radial velocity variations simultaneously or separately and …

As the quality and quantity of astrophysical data continue to improve, the precision with
which certain astrophysical events can be timed becomes limited not by the data …

The transits of a distant star by a planet on a Keplerian orbit occur at time intervals exactly
equal to the orbital period. If a second planet orbits the same star, the orbits are not …

Dark matter (DM) self-interactions have important implications for the formation and
evolution of structure, from dwarf galaxies to clusters of galaxies. We study the dynamics of …

When an extrasolar planet passes in front of (transits) its star, its radius can be measured
from the decrease in starlight and its orbital period from the time between transits. Multiple …

Future surveys for transiting extrasolar planets are expected to detect hundreds of jovian-
mass planets and tens of terrestrial-mass planets. For many of these newly discovered …

Exoplanets transiting bright nearby stars are key objects for advancing our knowledge of
planetary formation and evolution. The wealth of photons from the host star gives detailed …

We provide a database of transit times and updated ephemerides for 382 planets based on
data from the NASA Transiting Exoplanet Survey Satellite (TESS) and previously reported …