Name | alf 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 | 0.8632 (± 0.0037) RSun | ![]() |
+ |
Metallicity [Fe/H] | — | ||
Detected Disc | — | ||
Magnetic Field | — | ||
RA2000 | 14:39:35.0 | ||
Dec2000 | -60:50:15 | ||
Alternate Names | |||
Planetary system | 1 planet |
A model Earth-sized planet in the habitable zone of α Centauri A/B
2022
WANG H., LINEWEAVER Ch., QUANZ S., MOJZSIS S., IRELAND T. et al.
ApJ, 927, 134
paper arxiv
Measuring precise radial velocities on individual spectral lines. III. Dependence of stellar activity signal on line formation temperature
2022
AL MOULLA K., DUMUSQUE X., CRETIGNIER M., ZHAO Y. & VALENTI J.
Astron. & Astrophys., in press
paper
A Search for Optical Laser Emission from Alpha Centauri AB
2022
MARCY G.
MNRAS, 516, 2938
paper arxiv
Accounting for stellar activity signals in radial-velocity data by using Change Point Detection techniques
2022
SIMOLA U., BONFANTI A., DUMUSQUE X., CISEWXKI-KEHE J., KASKI S. & CORANDER J.
Astron. & Astrophys., submitted
arxiv
The Detectability of Nightside City Lights on Exoplanets
2022
BEATTY Th.
MNRAS, 513, 2652
paper arxiv
Simulations of astrometric planet detection in alpha Centauri by intensity interferometry
2022
NIKU RAI K., SARANGI S., SAHA P. & BASAK S.
MNRAS, submitted
arxiv
Into the Depths: A New Activity Metric for High-precision Radial Velocity Measurements Based on Line Depth Variations
2022
SIEGEL J., RUBENZAHL R., HALVERSON S. & HOWARD A.
Astron. J., 163, 260
paper
Spectral Line Depth Variability in Radial Velocity Spectra
2022
WISE A., PLAVCHAN P., DUMUSQUE X., CEGLA H. & WIGHT D.
Astron. J., submitted
arxiv
Magnitude-squared Coherence: A Powerful Tool for Disentangling Doppler Planet Discoveries from Stellar Activity
2022
DODSON-ROBINSON S., DELGADO V., HARRELL J. & HALEY Ch.
Astron. J., 163, 169
paper
Stellar activity correction using PCA decomposition of shells
2022
CRETIGNIER M., DUMUSQUE X. & PEPE F.
Astron. & Astrophys., 659, A68
paper
X-Ray Chronicles of Alpha Centauri: The Swooning of α Cen B
2022
AYRES T.
Res. Notes AAS, 6, 24
paper
A new estimation of astrometric exoplanet detection limits in the habitable zone around nearby stars
2022
MEUNIER N. & LAGRANGE A.-M.
Astron. & Astrophys., 659, A104
paper arxiv
A Search for Radio Technosignatures at the Solar Gravitational Lens Targeting Alpha Centauri
2022
TUSAY N., HUSTON M., DEDRICK C., KERBY S., PALUMBO III M. et al.
Astron. J., 164, 116
paper arxiv
Precision Millimeter Astrometry of the α Centauri AB System
2021
AKESON R., BEICHMAN Ch., KERVELLA P., FOMALONT E. & BENEDICT F.
ApJ, 162, 14
paper arxiv
Orbital Stability of Planet-hosting Triple-star Systems according to Hill: Applications to Alpha Centauri and 16 Cygni
2021
BOYLE L. & CUNTZ M.
Res. Notes AAS, 5, 285
paper
Laser Communication with Proxima and Alpha Centauri using the Solar Gravitational Lens
2021
MARCY G., TELLIS N. & WISHNOW E.
MNRAS, accepted
arxiv
Milankovitch Cycles for a Circumstellar Earth-analog within α Centauri-like Binaries
2021
QUARLES B., LI G. & LISSAUER J.
MNRAS, 509, 2736
paper arxiv
Transit Search for Exoplanets around Alpha Centauri A and B with ASTERIA
2021
KRISHNAMURTHY A., KNAPP M., GÜTHER M., DAYLAN T., DEMORY B.-O. et al.
Astron. J., 161, 275
paper
Exomoons in Systems with a Strong Perturber: Applications to α Cen AB
2021
QUARLES B., EGGL S. & ROSARIO-FRANCO M.
Astron. J., 162, 58
paper arxiv
The Copernican Principle Rules Out BLC1 as a Technological Radio Signal from the Alpha Centauri System
2021
SIRAJ A. & LOEB A.
arxiv
Imaging low-mass planets within the habitable zone of α Centauri
2021
WAGNER K., BOEHLE A., PATHAK P., KASPER M., ARSENAULT R. et al.
Nature Communications., 12, 922
paper arxiv
The TOLIMAN space telescope: discovering exoplanets in the solar neighbourhood
2020
TUHTILL P., DESDOIGTS L., BETTERS Ch., NORRIS B., CAIRNS I & LEON6SAAL S.
SPIE Optical and Infrared Interferometry and Imaging, 11446, 1144612
paper
In Search for a Planet Better than Earth: Top Contenders for a Superhabitable World
2020
SCHULZE-MAKUCH D., HELLER R. & GUINAN E.
Astrobiology, 20, 1394
paper
Habitable Zones in Binary Star Systems: A Zoology
2020
EGGL S., GEORGAKARAKOS N. & ILAT-LOHINGER E.
galaxies, submitted
arxiv
Measuring precise radial velocities on individual spectral lines : II. Dependance of stellar activity signal on line depth
2020
CRETIGNIER M., DUMUSQUE X., ALLART R., PEPE F. & LOVIS Ch.
Astron. & Astrophys., 633, A76
paper arxiv
Activity and telluric contamination in HARPS observations of Alpha Centauri B
2019
LISOGORSKYI M., JONES H. & FENG F.
MNRAS, 485, 4804
paper arxiv
NEAR: First Results from the Search for Low-Mass
Planets in a Cen
2019
KASPER M., ARSENAULT R., KÄFT U., JAKOB G., LEVERATTO S. et al.
The Messenger, 178, 5
paper
Exoplanet Terra Incognita
2018
BERDYUGINA S., KUHN J., BELIKOV R. & TUTYSHEV S.
arxiv
New Methods for Finding Activity-Sensitive Spectral Lines: Combined Visual Identification and an Automated Pipeline Find a Set of 40 Activity Indicators
2018
WISE A., DODSON-ROBINSON S., BENEVOUR K. & PROVINI A.
Astron. J., accepted
arxiv
New Methods for Finding Activity-Sensitive Spectral Lines: Combined Visual Identification and an Automated Pipeline Find a Set of 40 Activity Indicators
2018
WISE, A., DODSON-ROBINSON, S., BEVENOUR, K. & A. PROVINI
Astron. J., accepted
paper
arxiv
https://arxiv.org/abs/1808.09009
ADS
The Breakthrough Starshot System Model
2018
PARKIN K.
arxiv
The chemical composition of α Cen AB revisited
2018
MOREL Th.
Astron. & Astrophys., accepted
arxiv
Detection of Alpha Centauri at radio wavelengths: chromospheric emission and search for star-planet interaction
2018
TRIGILIO C., UMANA G., CAVALLERO F., AGLIOZZO C., LETO P. et al.
MNRAS, submitted
arxiv
Project Blue: Visible Light Imaging Search for Terrestrial-class Exoplanets in the Habitable Zones of Alpha Centauri A and B
2018
MORSE J., BENDEK E., CABROL N., MARCHIS F., TURNBULL M. et al.
White Paper to the US National Academy of Sciences
arxiv
Long-Term Stability of Tightly Packed Multi-Planet Systems in Prograde, Coplanar, Circumstellar Orbits within the α Centauri AB System
2018
QUARLES B. & LISSAUER J.
Astron. J., 155, 130
paper arxiv
Alpha Centauri Beyond the Crossroads
2018
AYRES T.
Res. Notes AAS, 2, 17
paper
Long-Term Stability of Planets in the α Centauri System, II: Forced Eccentricities
2018
QUARLES B., LISSAUER J. & KAIB N.
Astron. J., 155, 64
paper arxiv
Planet Detectability in the Alpha Centauri System
2018
ZHAO L., FISCHER D., BREWER J., GIGUERE M. & ROJAS-AYALA B.
ApJ, 155, 24
paper arxiv
Searching for Faint Comoving Companions to the α Centauri system in the VVV Survey Infrared Images
2017
BEAMIN J., MINNITI D., PULLEN J., IVANOV V., BENDEK E. et al.
MNRAS
arxiv
The radii and limb darkenings of Alpha Centauri A and B. Interferometric measurements with VLTI/PIONIER
2017
KERVELLA P., BIGOT I., GALLENNE A. & THEVENIN F.
Astron. & Astrophys., 597, A137
paper
Deceleration of high-velocity interstellar photon sails into bound orbits at α Centauri
2017
HELLER R. & HIPPKE M.
ApJ. Letters, 835, L32
paper
arxiv
ADS
Optimized trajectories to the nearest stars using lightweight high-velocity photon sails
2017
HELLER R., HIPPKE M. & KERVELLA P.
Astron. J., 154, 115
paper arxiv
Interstellar communication. I. Maximized data rate for lightweight space-probes
2017
HIPPKE M.
Int. J. Astrobiol., 18, 267
paper arxiv
Surface Imaging of Proxima b and Other Exoplanets: Topography, Biosignatures, and Artificial Mega-Structures
2017
BERDYUGINA S. & KUHN J.
ApJ, submitted
arxiv
NEAR: Low-mass Planets in α Cen with VISIR
2017
KASPER M., ARSENAULT R., KÄFL H.-U., JAKOB G., FUENTESECA E. et al.
Messenger, 169, 16
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Future Exoplanet Research: Science Questions and How to Address Them
2017
SCHNEIDER J.
Exoplanet Handbook (Springer), in press
arxiv
Dynamics and habitability in circumstellar planetary systems of known binary stars
2016
BAZSÓ A., PILAT-LOHINGER E., EGGL S., FUNK B., BANCELIN, D. & G. RAU
MNRAS, 466, 1555
ADS
paper
Long-term Stability of Planets in the Centauri System
2016
QUARLES B. & LISSAUER J.
Astron. J., 151, 111
paper arxiv
ADS
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, 463, 2768
paper ADS
arxiv
Proxima's orbit around Alpha Centauri
2016
KERVELLA P. & THEVENIN F.
Astron. & Astrophy., 598, L7
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
arxiv
ADS
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
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
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
What is the mass of alpha Cen B b?
2015
PLAVCHAN P., CHEN X. & POHL G.
ApJ, 805, 174
paper arxiv ADS
Tachoastrometry: astrometry with radial velocities
2015
PASQUINI L., CORTES C., LOMBARDI M., MONACO L., LEÃO I. & DELABRE B.
Astron. & Astrophys., 574, A76
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On the Likelihood of Planet Formation in Close Binaries
2015
JANG-CONDELL H.
ApJ, 799, 147
paper arxiv
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
The Mt John University Observatory Search For Earth-mass Planets In The Habitable Zone Of Alpha Centauri
2015
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Searching for Earth-mass planets around α Centauri: precise radial velocities from contaminated spectra
2015
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International J. of Astrobiology, 14, 173
paper arxiv ADS
Global warming as a detectable thermodynamic marker of Earth-like extrasolar civilizations: the case for a telescope like Colossus
2015
KUHN J. & BERDYGINA S.
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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.
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arxiv
Space telescope design to directly image the habitable zone of Alpha Centauri
2015
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The Metallicity Dependence of Giant Planet Incidence
2014
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MNRAS, 443, 393
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XUV-driven mass loss from extrasolar giant planets orbiting active stars
2014
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arxiv
Dynamical Stability of Terrestrial Planets in the Binary α Centauri System
2014
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MNRAS, accepted
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Planet formation in Binaries
2014
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The Ups and Downs of α Centauri
2014
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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
Superhabitable Worlds
2014
HELLER R. & ARMSTRONG J.
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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
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Sobre la habitabilidad de exoplanetas orbitando a Próxima del Centauro
2013
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Possibilities of life around Alpha Centauri B
2013
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Upcoming Microlensing by Proxima Centauri: A Rare Opportunity for Mass Determination and Planet Detection
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2013
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An Earth-mass planet orbiting α Centauri B
2012
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