Orbital Data and Parent Star Data for: HD40307__ d

quantity unit value 1-sigma uncertainty
Period days 20.4600000 0.0100000
Time of periastron HJD 2454532.4200000 0.2900000
Orbital eccentricity none 0.000 0.000
Argument of perihelion deg 0.000 0.000
Velocity half-amplitude m s^-1 4.500 0.100
M*sin(i) M_Earth 16.237 ---
Stellar mass M_Sun 0.77 ---
Stellar T_eff Kelvin 4977 ---
Planetary T_eff Kelvin 508 ---
Stellar Radius R_Sun 0.700 ---
Predicted Planetary Radius (w/o core) R_Jupiter 0.253 ---
T_circ (w/o core) Gyr ****** ---
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