Orbital Data and Parent Star Data for: Gl581____ e

quantity unit value 1-sigma uncertainty
Period days 3.1494200 0.0004500
Time of periastron HJD 2454717.8000000 0.0100000
Orbital eccentricity none 0.000 0.000
Argument of perihelion deg 0.000 0.000
Velocity half-amplitude m s^-1 1.900 0.200
M*sin(i) M_Earth 2.010 ---
Stellar mass M_Sun 0.31 ---
Stellar T_eff Kelvin 3200 ---
Planetary T_eff Kelvin 457 ---
Stellar Radius R_Sun 0.290 ---
Predicted Planetary Radius (w/o core) R_Jupiter 0.116 ---
T_circ (w/o core) Gyr 39.807 ---
T_damp (w/o core) Gyr inf ---


Planet radii from theoretical models of:
Bodenheimer, Laughlin, and Lin 2003, Astrophysical Journal, v. 592, 555-563.

Damping timescales from:
Adams and Laughlin 2006, ApJ : link