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Tidal Constraints on Planetary Habitability
Rory Barnes, Brian Jackson, Richard Greenberg +2
We review how tides may impact the habitability of terrestrial-like planets. If such planets form around low-mass stars, then planets in the circumstellar habitable zone will be cl…
CoRoT-7 b: Super-Earth or Super-Io?
Rory Barnes, Sean N. Raymond, Richard Greenberg +2
CoRoT-7 b, a planet about 70% larger than the Earth orbiting a Sun-like star, is the first-discovered rocky exoplanet, and hence has been dubbed a "super-Earth". Some initial studi…
A Symplectic Integrator for Hill's Equations
T. Quinn, R. P. Perrine, D. C. Richardson +1
Hill's equations are an approximation that is useful in a number of areas of astrophysics including planetary rings and planetesimal disks. We derive a symplectic method for integr…
Tidal Limits to Planetary Habitability
Rory Barnes, Brian Jackson, Richard Greenberg +1
The habitable zones of main sequence stars have traditionally been defined as the range of orbits that intercept the appropriate amount of stellar flux to permit surface water on a…
Observational Evidence for Tidal Destruction of Exoplanets
Brian Jackson, Rory Barnes, Richard Greenberg
The distribution of the orbits of close-in exoplanets shows evidence for on-going removal and destruction by tides. Tides raised on a planet's host star cause the planet's orbit to…
N-Body Simulations of Growth from 1 km Planetesimals at 0.4 AU
Rory Barnes, Thomas R. Quinn, Jack J. Lissauer +1
We present N-body simulations of planetary accretion beginning with 1 km radius planetesimals in orbit about a 1 solar mass star at 0.4 AU. The initial disk of planetesimals contai…