EDP Sciences logo
Subscriber Authentication Point
Search
Menu
Home All issues Volume 538 (February 2012) A&A, 538 (2012) A96 Full HTML
Free Access

Table 3

KOI-135 and 204: planet and star parameters.

Fitted system parameters KOI-135 KOI-204
Planet orbital period P [days] 3.024095  ±  0.000021 3.246740  ±  0.000018
Planetary transit epoch Ttr [BJD-2 400 000] 54 965.4159  ±  0.0006 54   966.3781 ± 0.0004
Planetary transit duration T14 [h] 2.926  ±  0.019 3.218  ±  0.043
Radius ratio Rp/R∗ 0.0844  ±  0.0011
Inclination i [deg]
u + a 0.652  ±  0.030 0.668  ±  0.031
u − a 0.098  ±  0.030 0.172  ±  0.031
h = e   sinω 0.019  ±  0.021 0.006  ±  0.025
k = e   cosω –0.016  ±  0.022 0.010  ±  0.031
Orbital eccentricity e  <0.025  <0.021
Radial-velocity semi-amplitude K [ m s-1] 375 ± 13 124 ± 5
Systemic velocity γrel [ km s-1] −37.591 ± 0.007 −35.892 ± 0.004
Derived system parameters
a/R∗
a/Rp
(M ⋆ /M⊙)1/3(R ⋆ /R⊙)-1
Stellar density ρ∗ [gcm-3]
Impact parameterb
Atmospheric parameters of the star
Effective temperature Teff [K] 6041  ±  143 5757  ±  134
Surface gravity log g [cgs]b 4.26  ±  0.05 4.15  ±  0.06
Metallicity  [Fe/H]  [dex] 0.33  ±  0.11 0.26  ±  0.10
Stellar rotational velocity Vsini∗ [ km s-1] 5.5  ±  1.5 4  ±  2
Spectral type G0V/G0IV G2IV
Stellar and planetary physical parameters
Star mass [M⊙]c 1.32  ±  0.09 1.19  ±  0.10
Star radius [R⊙]c 1.42 ± 0.07 1.52 ± 0.09
Planet mass Mp [MJup] 3.23 ± 0.19 1.02 ± 0.07
Planet radius Rp [RJup] 1.20 ± 0.06 1.24 ± 0.07
Planet density ρp [gcm-3] 2.33 ± 0.36 0.65 ± 0.12
Planet surface gravity log    gp [cgs] 3.75 ± 0.04 3.21 ± 0.05
Stellar rotation period P ∗ ,rot [days] 12.9  ±  0.7
Age of the star t [Gyr]
Distance of the star d [pc] 1950  ±  250 2250  ±  300
Orbital semi-major axis a [AU] 0.0449  ±  0.0010 0.0455  ±  0.0013
Equilibrium temperature Teq [K]d 1637  ±  47 1603  ±  51

Notes. 

(a)

The non-linear limb-darkening coefficients were fixed for the transit fitting but allowed to vary within their 1-σ error bars during the bootstrap procedure (see text for explanation);

(b)

from Kepler photometry and evolutionary tracks;

(c)

from STAREVOL evolutionary tracks;

(d)

black body equilibrium temperature assuming a uniform heat redistribution to the night-side.

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.