Orbital Data and Parent Star Data for: Gl581____ b

quantity unit value 1-sigma uncertainty
Period days 5.3690000 0.0003000
Time of periastron HJD 2453875.1200000 0.1600000
Orbital eccentricity none 0.000 0.000
Argument of perihelion deg 0.000 0.000
Velocity half-amplitude m s^-1 13.200 0.400
M*sin(i) M_Earth 16.652 ---
Stellar mass M_Sun 0.31 ---
Stellar T_eff Kelvin 3200 ---
Planetary T_eff Kelvin 382 ---
Stellar Radius R_Sun 0.290 ---
Predicted Planetary Radius (w/o core) R_Jupiter 0.255 ---
T_circ (w/o core) Gyr 98.146 ---
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