TEPCat: XO-5


 

This page summarises the information held within TEPCat for the transiting planetary system XO-5. Please see here for descriptions of the quantities given below.

 

Discovery and basic observable quantities:
 
Quantity Value Unit
Reference of discovery paper 2008ApJ...686.1331B  
Date of discovery paper 2008 / 5 / 15 y / m / d
Right ascension 07 46 51.96 h m s
Declination +39 05 40.5 d m s
V-band apparent magnitude 12.13 mag
K-band apparent magnitude 10.35 mag
Transit duration 0.12987
( 3.1169 )
day
hour
Transit depth 1.1 %
Time of mid-transit   2456864.31288 ± 0.00023     HJD or BJD
Orbital period 4.18775581 ± 0.00000058 days
Reference for orbital ephemeris   2015AcA....65..117S  

 

Physical properties from the most recent detailed study:
 
Quantity Value Unit
Stellar effective temperature 5370 ± 70 K
Stellar metal abundance ([Fe/H] or [M/H])   +0.05 ± 0.06 dex
Stellar mass 1.038 ± 0.031   Msun
Stellar radius 1.129 ± 0.027 Rsun
Stellar logarithmic surface gravity 4.348 ± 0.016 c.g.s.
Stellar mean density 0.721 ± 0.027
( 1.017 ± 0.038 )
ρsun
g cm-3
Orbital eccentricity 0.0 +0.062 −0.0  
Orbital semimajor axis   0.05148 ± 0.00051  AU
Planetary mass 1.190 ± 0.031
( 378.29 ± 9.85 )
Mjup
Mearth
Planetary radius 1.142 ± 0.034
( 12.80 ± 0.38 )
Rjup
Rearth
Planetary surface gravity 22.7 ± 3.2
3.36 ± 0.06
m/s2
log(cgs)
Planetary mean density 0.799 ± 0.064
( 1.060 ± 0.085 )
ρjup
g cm-3
Planetary equilibrium temperature 1225 ± 20 K
Reference of detailed study 2015AcA....65..117S  

 

XO-5 does not have an entry in the catalogue of Rossiter-McLaughlin measurements.

 

XO-5 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same as the physical properties given above, but in some cases the Homogeneous Studies results given below have been superseded by newer analyses.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 144.9 ± 2.0 m/s
Stellar effective temperature 5370 ± 70 K
Stellar metal abundance ([Fe/H] or [M/H])   +0.05 ± 0.06 dex
Orbital inclination 87.04 ± 0.65   degrees
Fractional stellar radius (R* / a) 0.1004 ± 0.0049  
Fractional planetary radius (Rpl / a)   0.01054 ± 0.00073   
Light curve analysis reference 2010MNRAS.408.1689S  
 
Derived parameters Value Unit
Stellar mass 0.914 ± 0.064 ± 0.010 Msun
Stellar radius 1.065 ± 0.064 ± 0.004 Rsun
Stellar logarithmic surface gravity 4.344 ± 0.043 ± 0.002 c.g.s.
Stellar mean density 0.76 ± 0.11 ρsun
Orbital semimajor axis   0.0494 ± 0.0011 ± 0.0002  AU
Planetary mass 1.084 ± 0.055 ± 0.008 Mjup
Planetary radius 1.089 ± 0.082 ± 0.004 Rjup
Planetary surface gravity 22.7 ± 3.2 m/s2
Planetary mean density 0.79 ± 0.17 ± 0.00 ρjup
Planetary equilibrium temperature 1203 ± 33 K
Safronov number 0.1075 ± 0.0082 ± 0.0004  
Main analysis reference 2010MNRAS.408.1689S  

 


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