Planet alf Cen B b

Name alf Cen B b
Discovered in 2012
Mass 0.0036 (± 0.0003) MJ
Mass*sin(i) 0.0036 (± 0.0003) MJ
Semi-Major Axis 0.04 AU
Orbital Period 3.2357 (± 0.0008) JD
Eccentricity 0.0
ω
Tperi
Radius
Inclination
Update 2015-11-05
Detection Method Radial Velocity
Mass Detection Method
Radius Detection Method
Molecules
Primary transit
Secondary transit
λ
Impact Parameter b
Time Vr=0
Velocity Semiamplitude K
Calculated temperature
Measured temperature
Hottest point longitude
Geometric albedo
Surface gravity log(g/gH)
Alternate Names

Star

alpha Cen B
Name alpha Cen B
Distance 1.295 pc
Spectral type K1V
Apparent magnitude V 1.33
Mass 0.934 (± 0.006) MSun +
Age
Effective temperature 5214.0 (± 33.0) K +
Radius 0.863 RSun
Metallicity [Fe/H]
Detected Disc
Magnetic Field
RA2000 14:39:35.0
Dec2000 -60:50:15
Alternate Names
Planetary system 1 planet

More data

Observability Predictor

Remarks

15 Oct 2015: Planet challenged by Rajpaul et al. 2015. Reply by Dumusque in preparation (priv. comm.)

Related publications

Ghost in the time series: no planet for Alpha Cen B
2016 RAJPAUL V., AIGRAIN S. & ROBERTS S.
MNRAS, 456, L6
paper  arxiv  ADS

Milankovitch Cycles of Terrestrial Planets in Binary Star Systems
2016 FORGAN, D.
MNRAS, accepted
ADS  arxiv  

The impact of secular resonances on habitable zones in circumstellar planetary systems of known binary stars
2016 BAZSO A., PILAT-LOHINGER E., EGGL S., FUNK B. & EGGL S.
ApJ, submitted
arxiv  

Long-term Stability of Planets in the  Centauri System
2016 QUARLES B. & LISSAUER J.
Astron. J., 151, 111
paper  arxiv   ADS  

A terrestrial planet candidate in a temperate orbit around Proxima Centauri
2016 ANGLADA-ESCUDÉ, G., AMADO, P., BARNES, J., BERDIÑAS, Z., BUTLER, R. & 26 additional authors
Nature, 536, 437
paper  

The Mt John University Observatory Search For Earth-mass Planets In The Habitable Zone Of Alpha Centauri
2015 ENDL M., BERGMANN C., HEARNSHAW J., BERNES S., WITTENMYER R. et al.
Int. J. Astrobiolo., 14, 305
paper  arxiv  ADS  

Searching for Earth-mass planets around α Centauri: precise radial velocities from contaminated spectra
2015 BERGMANN, C., ENDL, M. HEARNSHAW, J., WITTENMYER, R. & D. WRIGHT
International J. of Astrobiology, 14, 173
paper  arxiv ADS  

Planet Formation in Stellar Binaries. II. Overcoming the Fragmentation Barrier in α Centauri and γ Cephei-like Systems
2015 RAFIKOV R. & SILSBEE K.
ApJ, 798, 70
paper  arxiv  

On the Likelihood of Planet Formation in Close Binaries
2015 JANG-CONDELL H.
ApJ, 799, 147
paper  arxiv  

Tachoastrometry: astrometry with radial velocities
2015 PASQUINI L., CORTES C., LOMBARDI M., MONACO L., LEÃO I. & DELABRE B.
Astron. & Astrophys., 574, A76
paper  

What is the mass of alpha Cen B b?
2015 PLAVCHAN P., CHEN X. & POHL G.
ApJ, 805, 174
paper  arxiv  ADS

Hubble Space Telescope search for the transit of the Earth-mass exoplanet Alpha Centauri Bb
2015 DEMORY B.-O., EHRENREICH D., QUELOZ D., SEAGER S., GILLILAND R. et al.
MNRAS, 450, 2043
paper  arxiv  ADS  

A Gaussian process framework for modelling stellar activity signals in radial velocity data
2015 RAJPAUL V., AIGRAIN S., OSBORNE M., REECE S. & ROBERTS S.
MNRAS, accepted
arxiv  

A method to directly image exoplanets in multi-star systems such as Alpha-Centauri
2015 THOMAS S., BELIKOV R. & BENDEK E.
in SPIE 2015
arxiv  

Space telescope design to directly image the habitable zone of Alpha Centauri
2015 BENDEK E., BELIKOV R., LOZI J., THOMAS S., MALES J. et al.
in SPIE 2015
arxiv  

How to Directly Image a Habitable Planet Around Alpha Centauri with a ~30-45cm Space Telescope
2015 BELIKOV R., BENDEK E., THOMAS S., MALES J. & LOZI J.
in SPIE 9605
arxiv  

XUV-driven mass loss from extrasolar giant planets orbiting active stars
2014 CHADNEY J., GALAND M., UNRUH Y., KOSKINEN T. & SANZ-FORCADA J.
Icarus, accepted
arxiv  

How dusty is alpha Centauri? Excess or non-excess over the infrared photospheres of main-sequence stars
2014 WIEGERT J., LISEAU R., THEBAULT Ph., OLOFSSON G., MORA A. et al.
Astron. & Astrophys., accepted
arxiv 

The Ups and Downs of α Centauri
2014 AYRES Th.
Astron. J., 147, 59
paper  

Superhabitable Worlds
2014 HELLER R. & ARMSTRONG J.
Astrobiology, 14, 50
paper  arxiv  ADS  

The Metallicity Dependence of Giant Planet Incidence
2014 GONZALEZ G.
MNRAS, 443, 393
paper  arxiv  

Planet formation in Binaries
2014 THEBAULT Ph. & HAGHIGHIPOUR N.
in "Planetary Exploration and Science: Recent Advances and Applications", Jin & Haghighipour Eds?
arxiv  

Microlensing Events by Proxima Centauri in 2014 and 2016: Opportunities for Mass Determination and Possible Planet Detection
2014 SAHU K., BOND H., ANDERSON J. & DOMINIK M.
ApJ, 782, 89
paper  arxiv 

Dynamical Stability of Terrestrial Planets in the Binary α Centauri System
2014 ANDRADE-INES, E. & MICHTCHENKO T.
MNRAS, accepted
arxiv 

Sobre la habitabilidad de exoplanetas orbitando a Próxima del Centauro
2013 LOEZ-AGUILA M., CARDENAS-ORTIZ R. & RODRIGUEZ-LOPEZ L.
Revista Cubana de Fisica, 30, 77
paper  arxiv 

Planet formation in small separation binaries: not so excited after all
2013 RAFIKOV R.
ApJ Letters, 765, L8
paper  arxiv  

Upcoming Microlensing by Proxima Centauri: A Rare Opportunity for Mass Determination and Planet Detection
2013 SAHU K., BOND H., ANDERSON J. & DOMINIK M.
in 222nd AAS Meeting (Indianapolis), 116.05

Possibilities of life around Alpha Centauri B
2013 GONZALEZ A., CARDENAS R. & HEARNSHAWJ.
Revista Cubana de Fisica, 30, 81
paper  arxiv  

A journey through time and space: Alpha Centauri
2012 BEECH M.
Astron. & Geophys., 53, 6.10
paper  

An Earth-mass planet orbiting α Centauri B
2012 DUMUSQUE X., PEPE F., LOVIS Ch., SEGRANSAN D., SAHLMANN J., BENZW., BOUCHY F., MAYOR M., QUELOZ D., SANTOS N. & UDRY S.
Nature, 491, 207
paper  

Planet hunting pioneer calls for probe to alpha Centauri
2011 REICH E.
Nature, 27 May 2011
paper  

Formation and Detectability of Terrestrial Planets Around Alpha Centauri B
2008 GUEDES J., RIVERA J., DAVIS E., LAUGHLIN G. QUINTANA E. & FISCHER D.
ApJ., 679, 1582
paper

Formation and Detectability of Terrestrial Planets Around Alpha Centauri B
2008 GUEDES J.
BAAS, 41, no 1, 346.07
abstract

Emission of magnetosonic waves by planets and binary stars revolving in circular orbits.
1972 DOKUCHAEV V.
Soviet Astronomy, 15, 573
paper