Planet WISE 0458+6434 b

Name WISE 0458+6434 b
Discovered in 2011
Mass 13.0 ( -3.0 +7.0 ) MJ
Semi-major axis 5.0 AU
Orbital period 25800.0 day
Eccentricity
ω
Tperi
Radius 1.009 ( -0.035 +0.011 ) RJ
Inclination
Update March 2, 2015
Detection Method Imaging
Mass Detection Method
Radius Detection method
Molecules detected
Primary transit
Secondary transit
Anomaly angle
impact Parameter b
Time Vr=0
Velocity Semiamplitude K
Calculated temperature
Measured temperature 590.0 K
Hottest point longitute
Geometric albedo
Surface gravity log(g/gH) 4.5
Alternate Names WISEP J045853.90+643451.9B , WISE J0458+6434B

Observability Predictor

Remarks

Properties are given for a system of age 1 Gyr. Dupuy & Kraus (2013) give also estimates for 5 Gyr of age.
Burgasser et al. (2012): spectral type T9.5
Burgasser et al. (2012): evidence of significant NH3 absorption (tbc)

Star

Name WISE 0458+6434 A
Distance 10.5 (± 1.4) pc
Spectral type T 8.5
Apparent magnitude V
Mass 0.019 ( -0.006 +0.008 ) MSun
Age 1.0 Gyr
Effective temperature 730.0 ( -130.0 +180.0 ) K
Radius 0.098 (± 0.003) RSun
Metallicity [Fe/H]
Detected Disc
Magnetic Field
RA2000 04:58:54.0
Dec2000 +64:34:53
Alternate Names WISEPC J045853.90+643451.9A, WISEP J045853.90+643452.6A, WISE J0458+6434A
Planetary system 1 planet

Remarks

Properties are given for a system of age 1 Gyr. Dupuy & Kraus (2013) give also estimates for 5 Gyr of age.

More data


Related publications

Distances, Luminosities, and Temperatures of the Coldest Known Substellar Objects
2013 DUPUY T. & KRAUS A.
Science, 341, 1492
paper   arxiv   ADS  

Resolved Spectroscopy of a Brown Dwarf Binary at the T Dwarf/Y Dwarf Transition
2012 BURGASSER A., GELINO C., CUSHING M. & KIRKPATRICK J.
ApJ, 745, 26
paper   arxiv   ADS  

WISE Brown Dwarf Binaries: The Discovery of a T5+T5 and a T8.5+T9 System
2011 GELINO Ch., KIRKPATRICK J., CUSHING M., EIDENHARDT P., GRIFFITH R. & 4 additional authors
Astron. J., 142, 57
paper  arxiv   ADS  

The First Ultra-cool Brown Dwarf Discovered by the Wide-field Infrared Survey Explorer
2011 MAINZER A., CUSHING M., SKRUTSKIE M., GELINO C., KIRKPATRICK J & 15 co-authors
ApJ, 726, 30
paper   arxiv   ADS