TEPCat: CoRoT-12


 

This page summarises the information held within TEPCat for the transiting planetary system CoRoT-12. Please see here for descriptions of the quantities given below.

 

Discovery and basic observable quantities:
 
Quantity Value Unit
Reference of discovery paper 2010A+A...520A..97G  
Date of discovery paper 2010 / 7 / 15 y / m / d
Right ascension 06 43 03.76 h m s
Declination −01 17 47.1 d m s
V-band apparent magnitude 15.52 mag
K-band apparent magnitude 13.56 mag
Transit duration 0.10726
( 2.5742 )
day
hour
Transit depth 1.9 %
Time of mid-transit   2454398.62707 ± 0.00036     HJD or BJD
Orbital period 2.828042 ± 0.000013 days
Reference for orbital ephemeris   2010A+A...520A..97G  

 

Physical properties from the most recent detailed study:
 
Quantity Value Unit
Stellar effective temperature 5675 ± 80 K
Stellar metal abundance ([Fe/H] or [M/H])   +0.16 ± 0.10 dex
Stellar mass 1.018 ± 0.092   Msun
Stellar radius 1.046 ± 0.043 Rsun
Stellar logarithmic surface gravity 4.407 ± 0.029 c.g.s.
Stellar mean density 0.889 ± 0.076
( 1.25 ± 0.11 )
ρsun
g cm-3
Orbital eccentricity 0.0  
Orbital semimajor axis   0.0394 ± 0.0011  AU
Planetary mass 0.887 ± 0.078
( 281 ± 24 )
Mjup
Mearth
Planetary radius 1.350 ± 0.075
( 15.13 ± 0.84 )
Rjup
Rearth
Planetary surface gravity 12.1 ± 1.3
3.08 ± 0.04
m/s2
log(cgs)
Planetary mean density 0.337 ± 0.052
( 0.447 ± 0.069 )
ρjup
g cm-3
Planetary equilibrium temperature 1410 ± 28 K
Reference of detailed study 2011MNRAS.417.2166S  

 

CoRoT-12 does not have an entry in the catalogue of Rossiter-McLaughlin measurements.

 

CoRoT-12 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same as the physical properties given above, but in some cases the Homogeneous Studies results given below have been superseded by newer analyses.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 125.5 +8.0 −7.5 m/s
Stellar effective temperature 5675 ± 80 K
Stellar metal abundance ([Fe/H] or [M/H])   +0.16 ± 0.10 dex
Orbital inclination 85.79 ± 0.43   degrees
Fractional stellar radius (R* / a) 0.1235 ± 0.0035  
Fractional planetary radius (Rpl / a)   0.01638 ± 0.00074   
Light curve analysis reference 2011MNRAS.417.2166S  
 
Derived parameters Value Unit
Stellar mass 1.018 ± 0.088 ± 0.029 Msun
Stellar radius 1.046 ± 0.042 ± 0.010 Rsun
Stellar logarithmic surface gravity 4.407 ± 0.029 ± 0.004 c.g.s.
Stellar mean density 0.889 ± 0.076 ρsun
Orbital semimajor axis   0.0394 ± 0.0011 ± 0.0004  AU
Planetary mass 0.887 ± 0.077 ± 0.017 Mjup
Planetary radius 1.350 ± 0.074 ± 0.013 Rjup
Planetary surface gravity 12.1 ± 1.3 m/s2
Planetary mean density 0.337 ± 0.052 ± 0.003 ρjup
Planetary equilibrium temperature 1410 ± 28 K
Safronov number 0.0508 ± 0.0042 ± 0.0005  
Main analysis reference 2011MNRAS.417.2166S  

 


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