TEPCat: CoRoT-7


 

This page summarises the information held within TEPCat for the transiting planetary system CoRoT-7. Please see here for descriptions of the quantities given below.

 

Discovery and basic observable quantities:
 
Quantity Value Unit
Reference of discovery paper 2009A+A...506..287L  
Date of discovery paper 2009 / 8 / 3 y / m / d
Right ascension 06 43 49.47 h m s
Declination −01 03 46.9 d m s
V-band apparent magnitude 11.72 mag
K-band apparent magnitude 9.81 mag
Transit duration 0.04413
( 1.0591 )
day
hour
Transit depth 0.034 %
Time of mid-transit   2454398.07756 ± 0.00059     HJD or BJD
Orbital period 0.85359159 ± 0.00000057 days
Reference for orbital ephemeris   2014A+A...569A..74B  

 

Physical properties from the most recent detailed study:
 
Quantity Value Unit
Stellar effective temperature 5259 ± 58 K
Stellar metal abundance ([Fe/H] or [M/H])   +0.138 ± 0.061 dex
Stellar mass 0.913 ± 0.017   Msun
Stellar radius 0.820 ± 0.019 Rsun
Stellar logarithmic surface gravity 4.573 ± 0.011 c.g.s.
Stellar mean density 1.671 ± 0.073
( 2.36 ± 0.10 )
ρsun
g cm-3
Orbital eccentricity 0.0 +0.32 −0.0  
Orbital semimajor axis   0.01702 +0.00017 −0.00004  AU
Planetary mass 0.0181 ± 0.0027
( 5.75 ± 0.86 )
Mjup
Mearth
Planetary radius 0.1414 ± 0.0057
( 1.585 ± 0.064 )
Rjup
Rearth
Planetary surface gravity 21.5 +3.5 −3.0
3.33 +0.07 −0.07
m/s2
log(cgs)
Planetary mean density 5.7 ± 1.1
( 7.6 ± 1.5 )
ρjup
g cm-3
Planetary equilibrium temperature 1756 ± 27 K
Reference of detailed study 2014A+A...569A..74B  

 

CoRoT-7 does not have an entry in the catalogue of Rossiter-McLaughlin measurements.

 

CoRoT-7 has been examined as part of the Homogeneous Studies of Transiting Extrasolar Planets project. The details from this work have been given below. In most instances they are the same as the physical properties given above, but in some cases the Homogeneous Studies results given below have been superseded by newer analyses. Separate statistical and systematic errorbars are given where relevant.

Measured parameters Value Unit
Orbital velocity amplitude 5.04 ± 1.09 m/s
Stellar effective temperature 5250 ± 60 K
Stellar metal abundance ([Fe/H] or [M/H])   +0.12 ± 0.06 dex
Orbital inclination 79.6 ± 3.2   degrees
Fractional stellar radius (R* / a) 0.264 ± 0.039  
Fractional planetary radius (Rpl / a)   0.0047 ± 0.0012   
Light curve analysis reference 2011MNRAS.417.2166S  
 
Derived parameters Value Unit
Stellar mass 0.884 ± 0.056 ± 0.039 Msun
Stellar radius 0.96 ± 0.15 ± 0.01 Rsun
Stellar logarithmic surface gravity 4.42 ± 0.14 ± 0.01 c.g.s.
Stellar mean density 1.00 ± 0.48 ρsun
Orbital semimajor axis   0.01690 ± 0.00036 ± 0.00025  AU
Planetary mass 0.0220 ± 0.0050 ± 0.0007 Mjup
Planetary radius 0.166 ± 0.043 ± 0.002 Rjup
Planetary surface gravity 19 ± 12 m/s2
Planetary mean density 4.5 ± 4.5 ± 0.1 ρjup
Planetary equilibrium temperature 1910 ± 140 K
Safronov number 0.0051 ± 0.0018 ± 0.0001  
Main analysis reference 2011MNRAS.417.2166S  

 


Page generated on 2017/12/15           John Southworth   (Keele University, UK)