TEPCat: LHS 6343


 

This page summarises the information held within TEPCat for the transiting brown dwarf system LHS 6343. Please see here for descriptions of the quantities given below.

 

Discovery and basic observable quantities:
 
Quantity Value Unit
Reference of discovery paper 2011ApJ...730...79J  
Date of discovery paper 2010 / 8 / 24 y / m / d
Right ascension 19 10 14.33 h m s
Declination +46 57 26.5 d m s
V-band apparent magnitude 13.44 mag
K-band apparent magnitude 8.70 mag
Transit duration 0.1061
( 2.546 )
day
hour
Transit depth 3.6 %
Time of mid-transit   2455008.07259 ± 0.00001     HJD or BJD
Orbital period 12.7137941 ± 0.0000002 days
Reference for orbital ephemeris   2015ApJ...800..134M  

 

Physical properties from the most recent detailed study:
 
Quantity Value Unit
Stellar effective temperature 3431 ± 21 K
Stellar metal abundance ([Fe/H] or [M/H])   +0.04 ± 0.08 dex
Stellar mass 0.358 ± 0.011   Msun
Stellar radius 0.373 ± 0.005 Rsun
Stellar logarithmic surface gravity 4.85 ± 0.01 c.g.s.
Stellar mean density 6.93 ± 0.19
( 9.78 ± 0.27 )
ρsun
g cm-3
Orbital eccentricity 0.030 ± 0.002  
Orbital semimajor axis   0.0797 ± 0.0008  AU
Planetary mass 62.1 ± 1.2
( 197410 ± 3815 )
Mjup
Mearth
Planetary radius 0.783 ± 0.011
( 8.78 ± 0.12 )
Rjup
Rearth
Planetary surface gravity 2630 ± 48
5.420 ± 0.008
m/s2
log(cgs)
Planetary mean density 130 ± 4
( 172.4 ± 5.3 )
ρjup
g cm-3
Planetary equilibrium temperature 358 ± 3 K
Reference of detailed study 2015ApJ...800..134M  

 

LHS 6343 does not have an entry in the catalogue of Rossiter-McLaughlin measurements.

 

LHS 6343 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same as the physical properties given above, but in some cases the Homogeneous Studies results given below have been superseded by newer analyses.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 9600 ± 300 m/s
Stellar effective temperature 3300 ± 200 K
Stellar metal abundance ([Fe/H] or [M/H])   +0.04 ± 0.08 dex
Orbital inclination 89.247 ± 0.088   degrees
Fractional stellar radius (R* / a) 0.02388 ± 0.00090  
Fractional planetary radius (Rpl / a)   0.00489 ± 0.00018   
Light curve analysis reference 2011MNRAS.417.2166S  
 
Derived parameters Value Unit
Stellar mass 0.440 ± 0.049 ± 0.012 Msun
Stellar radius 0.418 ± 0.030 ± 0.004 Rsun
Stellar logarithmic surface gravity 4.839 ± 0.035 ± 0.004 c.g.s.
Stellar mean density 6.01 ± 0.76 ρsun
Orbital semimajor axis   0.0850 ± 0.0031 ± 0.0007  AU
Planetary mass 69.9 ± 5.6 ± 1.2 Mjup
Planetary radius 0.864 ± 0.048 ± 0.007 Rjup
Planetary surface gravity 2320 ± 210 m/s2
Planetary mean density 101 ± 13 ± 0 ρjup
Planetary equilibrium temperature 352 ± 22 K
Safronov number 31.2 ± 2.2 ± 0.3  
Main analysis reference 2011MNRAS.417.2166S  

 


Page generated on 2017/12/11           John Southworth   (Keele University, UK)