TEPCat: WASP-15


 

This page summarises the information held within TEPCat for the transiting planetary system WASP-15. Please see here for descriptions of the quantities given below.

 

Discovery and basic observable quantities:
 
Quantity Value Unit
Reference of discovery paper 2009AJ....137.4834W  
Date of discovery paper 2009 / 2 / 17 y / m / d
Right ascension 13 55 42.71 h m s
Declination −32 09 34.6 d m s
V-band apparent magnitude 10.92 mag
K-band apparent magnitude 9.69 mag
Transit duration 0.1547
( 3.713 )
day
hour
Transit depth 1.2 %
Time of mid-transit   2454584.69859 ± 0.00029     HJD or BJD
Orbital period 3.75209748 ± 0.00000081 days
Reference for orbital ephemeris   2013MNRAS.434.1300S  

 

Physical properties from the most recent detailed study:
 
Quantity Value Unit
Stellar effective temperature 6573 ± 70 K
Stellar metal abundance ([Fe/H] or [M/H])   +0.09 ± 0.04 dex
Stellar mass 1.305 ± 0.051   Msun
Stellar radius 1.522 ± 0.044 Rsun
Stellar logarithmic surface gravity 4.189 ± 0.021 c.g.s.
Stellar mean density 0.370 ± 0.027
( 0.522 ± 0.038 )
ρsun
g cm-3
Orbital eccentricity 0.0  
Orbital semimajor axis   0.05165 ± 0.00067  AU
Planetary mass 0.592 ± 0.019
( 188.19 ± 6.04 )
Mjup
Mearth
Planetary radius 1.408 ± 0.046
( 15.78 ± 0.52 )
Rjup
Rearth
Planetary surface gravity 7.39 ± 0.46
2.87 ± 0.03
m/s2
log(cgs)
Planetary mean density 0.198 ± 0.018
( 0.263 ± 0.024 )
ρjup
g cm-3
Planetary equilibrium temperature 1676 ± 29 K
Reference of detailed study 2013MNRAS.434.1300S  

 

Entries in the catalogue of Rossiter-McLaughlin measurements:
 
Reference λ (degrees)
Triaud et al. (2010)   −139.6   + 4.3   - 5.2  

 

 

WASP-15 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same as the physical properties given above, but in some cases the Homogeneous Studies results given below have been superseded by newer analyses.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 64.6 ± 1.2 m/s
Stellar effective temperature 6405 ± 80 K
Stellar metal abundance ([Fe/H] or [M/H])   +0.00 ± 0.10 dex
Orbital inclination 85.74 ± 0.38   degrees
Fractional stellar radius (R* / a) 0.1370 ± 0.0033  
Fractional planetary radius (Rpl / a)   0.01303 ± 0.00039   
Light curve analysis reference 2013MNRAS.434.1300S  
 
Derived parameters Value Unit
Stellar mass 1.305 ± 0.051 ± 0.006 Msun
Stellar radius 1.522 ± 0.044 ± 0.002 Rsun
Stellar logarithmic surface gravity 4.189 ± 0.021 ± 0.001 c.g.s.
Stellar mean density 0.370 ± 0.027 ρsun
Orbital semimajor axis   0.05165 ± 0.00067 ± 0.00008  AU
Planetary mass 0.592 ± 0.019 ± 0.002 Mjup
Planetary radius 1.408 ± 0.046 ± 0.002 Rjup
Planetary surface gravity 7.39 ± 0.46 m/s2
Planetary mean density 0.198 +0.018 −0.000 +0.018 −0.000 ρjup
Planetary equilibrium temperature 1676 ± 29 K
Safronov number 0.0332 ± 0.0013 ± 0.0001  
Main analysis reference 2013MNRAS.434.1300S  

 


Page generated on 2017/08/07           John Southworth   (Keele University, UK)