TEPCat: CoRoT-23


 

This page summarises the information held within TEPCat for the transiting planetary system CoRoT-23. Please see here for descriptions of the quantities given below.

 

Discovery and basic observable quantities:
 
Quantity Value Unit
Reference of discovery paper 2012A+A...537A..54R  
Date of discovery paper 2011 / 12 / 6 y / m / d
Right ascension 18 39 07.82 h m s
Declination +04 21 28.1 d m s
V-band apparent magnitude 15.63 mag
K-band apparent magnitude 12.36 mag
Transit duration 0.1620
( 3.888 )
day
hour
Transit depth 0.45 %
Time of mid-transit   2455308.939 ± 0.001     HJD or BJD
Orbital period 3.6313 ± 0.0001 days
Reference for orbital ephemeris   2012A+A...537A..54R  

 

Physical properties from the most recent detailed study:
 
Quantity Value Unit
Stellar effective temperature 5900 ± 100 K
Stellar metal abundance ([Fe/H] or [M/H])   +0.05 ± 0.1 dex
Stellar mass 1.122 +0.092 −0.072   Msun
Stellar radius 1.74 +0.26 −0.16 Rsun
Stellar logarithmic surface gravity 4.008 +0.076 −0.107 c.g.s.
Stellar mean density 0.214 +0.064 −0.066
( 0.302 +0.090 −0.093 )
ρsun
g cm-3
Orbital eccentricity 0.16 ± 0.02  
Orbital semimajor axis   0.04809 +0.00128 −0.00104  AU
Planetary mass 3.06 +0.32 −0.30
( 972 +101 −95 )
Mjup
Mearth
Planetary radius 1.18 +0.19 −0.11
( 13.2 + 2.1 − 1.2 )
Rjup
Rearth
Planetary surface gravity 54 +12 −14
3.73 +0.09 −0.13
m/s2
log(cgs)
Planetary mean density 1.75 +0.63 −0.64
( 2.32 +0.84 −0.85 )
ρjup
g cm-3
Planetary equilibrium temperature 1710 +110 −80 K
Reference of detailed study 2012MNRAS.426.1291S  

 

CoRoT-23 does not have an entry in the catalogue of Rossiter-McLaughlin measurements.

 

CoRoT-23 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same as the physical properties given above, but in some cases the Homogeneous Studies results given below have been superseded by newer analyses.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 377 ± 34 m/s
Stellar effective temperature 5900 ± 100 K
Stellar metal abundance ([Fe/H] or [M/H])   +0.05 ± 0.1 dex
Orbital inclination 84.7 +3.4 −3.0   degrees
Fractional stellar radius (R* / a) 0.168 +0.022 −0.014  
Fractional planetary radius (Rpl / a)   0.0117 +0.0018 −0.0011   
Light curve analysis reference 2012MNRAS.426.1291S  
 
Derived parameters Value Unit
Stellar mass 1.122 +0.088 −0.039 +0.027 −0.039 Msun
Stellar radius 1.74 +0.26 −0.16 +0.01 −0.02 Rsun
Stellar logarithmic surface gravity 4.008 +0.076 −0.107 +0.004 −0.005 c.g.s.
Stellar mean density 0.214 +0.064 −0.066 ρsun
Orbital semimajor axis   0.04809 +0.00122 −0.00088 +0.00039 −0.00056  AU
Planetary mass 3.06 +0.32 −0.30 +0.05 −0.07 Mjup
Planetary radius 1.18 +0.19 −0.11 ± 0.01 Rjup
Planetary surface gravity 54 +12 −14 m/s2
Planetary mean density 1.75 +0.63 −0.64 +0.02 −0.01 ρjup
Planetary equilibrium temperature 1710 +110 −80 K
Safronov number 0.222 +0.031 −0.003 +0.036 −0.002  
Main analysis reference 2012MNRAS.426.1291S  

 


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