Planet tau Boo b

Name tau Boo b
Discovered in 1996
Mass 4.13 ( -0.2 +0.35 ) MJ
Semi-major axis 0.046 AU
Orbital period 3.31249 (± 3.12595e-05) day
Eccentricity 0.787 ( -0.0382 +0.0246 )
ω 218.4 (± 25.0) deg
Tperi 2450529.2 JD
Radius 1.06 RJ
Inclination 45.0 ( -4.0 +3.0 ) deg;
Update Feb. 24, 2015
Detection Method Radial Velocity
Mass Detection Method Radial Velocity
Radius Detection method Theorical
Molecules detectedH2O
Primary transit
Secondary transit
Anomaly angle
impact Parameter b
Time Vr=0 1.27 (± 0.03) JD
Velocity Semiamplitude K 469.59 (± 14.86) °
Calculated temperature
Measured temperature
Hottest point longitute
Geometric albedo
Surface gravity log(g/gH)
Alternate Names

Observability Predictor

Remarks

  1. 10 Apr. 09: RV measurements with amateur spectrograph (Christian Buil).
  2. 10 sep. 03: New upper limit of 0.39 for the reflection albedo (Leigh et al 2003)
  3. 20 apr. 03: Planet in wide (a ~ 240 AU) binary system (Eggenberger et al 2003)
  4. 22 spt. 2000: the planet not so bright as previously announced (Cameron et al).
  5. Exhibits coherent variations in residual velocities consistent with additional companion.
    24 Jul. 00: the source of RV variation remains speculative, depending on completion of one full orbit (Fischer et al 2000).
  6. `Probable detection' of the reflected star-light by the planet (Cameron et. al, 1999). The albedo is claimed to be detected only from 456 to 524 nm.
  7. The star has a companion ( GJ 527B) about 240 AU away.

Other web-pages

Star

Name tau Boo
Distance 15.6 (± 0.05) pc
Spectral type F7 V
Apparent magnitude V 4.5
Mass 1.3 MSun
Age 2.52 Gyr
Effective temperature 6309.0 K
Radius 1.331 (± 0.027) RSun
Metallicity [Fe/H] 0.28
Detected Disc
Magnetic Field
RA2000 13:47:17.0
Dec2000 +17:27:22
Alternate Names
Planetary system 1 planet

More data


Related publications

A comprehensive statistical assessment of star-planet interaction
2015 MILLER B., GALLO E., WRIGHT J. & PEARSON E.
ApJ, 799, 163
paper  arxiv  

On the Eccentricity Distribution of Short-Period Single-Planet Systems
2011 WANG J. & FORD E.
MNRAS, 418, 1822
paper   arxiv

Three new "51 Peg-type" planets
1997 BUTLER P., MARCY G., WILLIAMS E., HAUSER H. & SHIRTS P.
ApJ Letters, 474, L115
paper

Near-IR Direct Detection of Water Vapor in Tau Boo b
2014 LOCKWOOD A., JOHNSON J., BENDER Ch., CARR J., BARMAN T. et al.
ApJ Letters, 783, L29
paper  arxiv  

On the Ages of Exoplanet Host Stars
2005 SAFFE C., GOMEZ M. & CHAVERO C.
Astron. & Astrophys., 443, 609
paper   arxiv

The Geneva-Copenhagen survey of the Solar neighbourhood. Ages, metallicities, and kinematic properties of ~14000 F and G dwarfs.
2004 NORDSTROM B., MAYOR M., ANDERSEN J., HOLMBERG J., PONT F., JORGENSEN B., OLSEN E., UDRY S. & MOWLAVI N.
Astron. & Astrophys., 419, 989
paper

Eleven Exoplanet Host Star Angular Diameters from the Chara Array
2008 BAINES E., McALISTER H., ten BRUMMELAAR Th., TURNER N., STURMANN J., STURMANN L., GOLDFINGER P., & RIDGWAY S.
ApJ., 701, 154
paper