TEPCat: HAT-P-11


 

This page summarises the information held within TEPCat for the transiting planetary system HAT-P-11. Please see here for descriptions of the quantities given below.

 

Discovery and basic observable quantities:
 
Quantity Value Unit
Reference of discovery paper 2010ApJ...710.1724B  
Date of discovery paper 2009 / 1 / 2 y / m / d
Right ascension 19 50 50.25 h m s
Declination +48 04 51.1 d m s
V-band apparent magnitude 9.47 mag
K-band apparent magnitude 7.01 mag
Transit duration 0.0980
( 2.352 )
day
hour
Transit depth 0.43 %
Time of mid-transit   2454957.813207 ± 0.000005     HJD or BJD
Orbital period 4.887802443 ± 0.000000032 days
Reference for orbital ephemeris   2017A+A...597A.113H  

 

Physical properties from the most recent detailed study:
 
Quantity Value Unit
Stellar effective temperature 4780 ± 50 K
Stellar metal abundance ([Fe/H] or [M/H])   +0.31 ± 0.05 dex
Stellar mass 0.812 ± 0.028   Msun
Stellar radius 0.695 ± 0.014 Rsun
Stellar logarithmic surface gravity 4.663 ± 0.012 c.g.s.
Stellar mean density 2.415 ± 0.097
( 3.41 ± 0.14 )
ρsun
g cm-3
Orbital eccentricity 0.2649 +0.0003 −0.0009  
Orbital semimajor axis   0.05259 ± 0.00062  AU
Planetary mass 0.0840 ± 0.0068
( 26.7 ± 2.2 )
Mjup
Mearth
Planetary radius 0.3966 ± 0.0094
( 4.45 ± 0.11 )
Rjup
Rearth
Planetary surface gravity 13.2 ± 1.1
3.12 ± 0.03
m/s2
log(cgs)
Planetary mean density 1.26 ± 0.12
( 1.67 ± 0.16 )
ρjup
g cm-3
Planetary equilibrium temperature 838 ± 10 K
Reference of detailed study 2011MNRAS.417.2166S  

 

Entries in the catalogue of Rossiter-McLaughlin measurements:
 
Reference λ (degrees)
Winn et al. (2010)   103   + 26   - 10  
Hirano et al. (2010)   103   + 22   - 18  
Sanchis-Ojeda et al. (2011) solution 1   106   + 15   - 12  
Sanchis-Ojeda et al. (2011) solution 2   121   + 24   - 21  
Deming et al. (2011) almost polar orbit

 

 

HAT-P-11 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same as the physical properties given above, but in some cases the Homogeneous Studies results given below have been superseded by newer analyses.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 11.8 ± 0.9 m/s
Stellar effective temperature 4780 ± 50 K
Stellar metal abundance ([Fe/H] or [M/H])   +0.31 ± 0.05 dex
Orbital inclination 89.36 ± 0.36   degrees
Fractional stellar radius (R* / a) 0.06148 ± 0.00082  
Fractional planetary radius (Rpl / a)   0.003604 ± 0.000071   
Light curve analysis reference 2011MNRAS.417.2166S  
 
Derived parameters Value Unit
Stellar mass 0.812 ± 0.026 ± 0.012 Msun
Stellar radius 0.695 ± 0.014 ± 0.004 Rsun
Stellar logarithmic surface gravity 4.663 ± 0.012 ± 0.002 c.g.s.
Stellar mean density 2.415 ± 0.097 ρsun
Orbital semimajor axis   0.05259 ± 0.00056 ± 0.00027  AU
Planetary mass 0.084 ± 0.007 ± 0.001 Mjup
Planetary radius 0.397 ± 0.009 ± 0.002 Rjup
Planetary surface gravity 13.2 ± 1.1 m/s2
Planetary mean density 1.26 ± 0.12 ± 0.01 ρjup
Planetary equilibrium temperature 838 ± 10 K
Safronov number 0.0274 ± 0.0022 ± 0.0001  
Main analysis reference 2011MNRAS.417.2166S  

 


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