Orbital Data and Parent Star Data for: TW_Hya___ b

quantity unit value 1-sigma uncertainty
Period days 3.5600000 0.0200000
Time of periastron HJD 2454400.0000000 3.5600000
Orbital eccentricity none 0.040 0.030
Argument of perihelion deg 105.000 27.000
Velocity half-amplitude m s^-1 196.000 61.000
Planetary mass M_Jup 1.473 ---
Stellar mass M_Sun 1.00 ---
Stellar T_eff Kelvin 5000 ---
Planetary T_eff Kelvin 1047 ---
Stellar Radius R_Sun 1.000 ---
Measured Planetary Radius R_Jupiter 0.000 ---
T_circ (w/o core) Gyr 0.376 ---
T_damp (w/o core) Gyr ****** ---


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