Planet 51 Eri b
| Name | 51 Eri b | ||
| Planet Status | Confirmed | ||
| Discovered in | 2015 | ||
| Mass | 2.6 (± 0.3) MJ |  |
+ |
| Mass*sin(i) | — | ||
| Semi-Major Axis | 11.1 ( -1.3 +4.2 ) AU | |
+ |
| Orbital Period | 10260.0 ( -1800.0 +6300.0 ) day | |
+ |
| Eccentricity | 0.49 (± 0.15) | |
+ |
| ω | 84.0 (± 58.0) deg | |
+ |
| Tperi | 2452014.79 (± 12.0) JD | |
|
| Radius | 1.11 ( -0.13 +0.16 ) RJ | |
|
| Inclination | 136.0 (± 11.0) deg | |
+ |
| Update | 2022-08-30 | ||
| Detection Method | Imaging | ||
| Mass Detection Method | Spectrum | ||
| Radius Detection Method | — | ||
| Primary transit | — | ||
| Secondary transit | — | ||
| λ | — | ||
| Impact Parameter b | — | ||
| Time Vr=0 | — | ||
| Velocity Semiamplitude K | — | ||
| Calculated temperature | 700.0 K | |
|
| Measured temperature | — | ||
| Hottest point longitude | — | ||
| Geometric albedo | — | ||
| Surface gravity log(g/gH) | 3.5 | ||
| Alternate Names | — |
Star
51 Eri| Name | 51 Eri | ||
| Distance | 29.4 (± 0.3) pc | |
|
| Spectral type | F0IV | ||
| Apparent magnitude V | 5.223 | ||
| Mass | 1.75 (± 0.05) MSun | |
|
| Age | 0.02 (± 0.006) Gyr | |
|
| Effective temperature | — | ||
| Radius | — | ||
| Metallicity [Fe/H] | -0.027 | |
|
| Detected Disc | IR Excess | |
|
| Magnetic Field | — | ||
| RA2000 | 04:37:36.1 | ||
| Dec2000 | -02:28:25 | ||
| Alternate Names | |||
| Planetary system | 1 planet |
Atmospheric parameters
Temperatures
| Data Source | Type | Result Value | Result Figure | Notes | Reference |
Molecules
| Molecule | Data Source | Type | Result Value | Result Figure | Notes | Reference |
| CH4 | Measurements | Detected | 2015 - MACINTOSH | |||
| H2O | Measurements | Detected | 2015 - MACINTOSH | |||
Observability Predictor 
Remarks
28 Sep 2015 : The planet 51 Eri b has been confirmed by astrometry of the planet position (De Rosa et al. 2015)Related publications
The infrared colors of 51 Eridani b: micrometereoid dust or chemical disequilibrium?
2023
MADUROWICZ A., MUKHERJEE S., BATALHA N., MACINTOSH B., MARLEY M. & KARALIDI Th.
Astron. J., 165, 238
paper arxiv
A Pilot Radio Search for Magnetic Activity in Directly Imaged Exoplanets
2022
CENDES Y., WILLIAMS P. & BERGER E.
Astron. J., 163, 15
paper arxiv
The Directly-Imaged Exoplanet Host Star 51 Eridani is a Gamma Doradus Pulsator
2022
SEPULVEDA A., HUBER D., ZHANG Zh., LI G., LIU M. et al.
ApJ. Letters, submitted
arxiv
Synthetic Evolution Tracks of Giant Planets
2021
MÜLLER S. & HELLED R.
MNRAS, in press
paper arxiv
Host star metallicity of directly imaged wide-orbit planets: implications for planet formation
2021
SWASTIK C., BANYAI R., NARANG M., MANOJ P., SIVARANI T. et al.
Astron. J., 161, 114
paper
arxiv
Sulfur Chemistry in the Atmospheres of Warm and Hot Jupiters
2021
HOBBS R., RIMMER P., SHORTLE O. & MADHUSUDHAN N.
MNRAS, in press
paper arxiv
Enhancing Direct Exoplanet Spectroscopy with Apodizing and Beam Shaping Optics
2021
CALVIN B., JOVANOVIC N., RUANE G., PEZZATO J., COLBORN et al.
PASP, 133, 024503
paper arxiv
A Comparative Study of Atmospheric Chemistry with VULCAN
2021
TSAI S., MALIK M., KITZMANN D., LYONS J.R., FATEEV A. et al.
ApJ, 923, 264
paper arxiv
Limits on the Mass and Initial Entropy of 51 Eri b from Gaia EDR3 Astrometry
2021
DUPUY T., MIREK BRANDT G. & BRANDT T.
MNRAS, accepted
arxiv
An updated visual orbit of the directly-imaged exoplanet 51 Eridani b and prospects for a dynamical mass measurement with Gaia
2020
DE ROSA R., NIELSEN E., WANG J., AMMONS M., DUCHENE G. et al.
Astron. J., 159, 1
paper arxiv
Direct characterization of young giant exoplanets at high spectral resolution by coupling SPHERE and CRIRES+
2020
OTTEN G., VIGAN A., MUSLIMOV E., N'DIAYE M., CHOQUET E. et al.
Astron. & Astrophys., 646, A150
paper arxiv
The Gemini Planet Imager Exoplanet Survey: Giant Planet and Brown Dwarf Demographics From 10-100 AU
2019
NIELSEN E., DE ROSA R., MACINTOSH B., WANG J., RUFFIO J.-B. et al.
Astron. J., 158, 13
paper arxiv
Hint of curvature in the orbital motion of the exoplanet 51 Eridani b using 3 years of VLT/SPHERE monitoring
2019
MAIRE A.-L., RODET L., CANTALOUBE F., GALICHER R., BRANDNER W. et al.
Astron. & Astrophys., 624, A118
paper arxiv
On the Mass Function, Multiplicity, and Origins of Wide-Orbit Giant Planets
2019
WAGNER K., APAIL D. & KRATTER K.
ApJ, accepted
arxiv
Two decades of Exoplanetary Science with Adaptive Optics
2018
CHAUVIN, G.
SPIE Astronomical Telescopes and Instrumentation
arxiv
paper
Spectral and atmospheric characterization of 51 Eridani b using VLT/SPHERE
2017
SAMLAND M., MOLLIERE P., BONNEFOY M., MAIRE A.-L., CANTALLOUBE F. et al.
Astron. & Astrophys., accepted
Characterizing 51 Eri b from 1-5 μm: a partly-cloudy exoplanet
2017
RAJAN A., RAMEAU J., DE ROSA R., MARLEY M., GRAHAM J. et al.
Astron. J., 154, 10
paper arxiv
Toward an initial mass function for giant planets
2017
CARRERA D., DAVIES M. & JOHANSEN A.
MNRAS, 478, 691
paper arxiv
Imaging Extrasolar Giant Planets
2016
BOWLER B.
PASP, 128, 102001
paper arxiv ADS
Photolytic Hazes in the Atmosphere of 51 Eri b
2016
ZAHNLE K., MARLEY M., MORLEY C. & MOSES J.
ApJ, 824, 137
paper arxiv ADS
On the Composition of Young, Directly Imaged Giant Planets
2016
MOSES, J., MARLEY, M., ZAHNLE, K. & 6 additional authors
ApJ, accepted
arxiv
paper
ADS
Astrometric Confirmation and Preliminary Orbital Parameters of the Young Exoplanet 51 Eridani b with the Gemini Planet Imager
2015
DE ROSA R., NIELSEN E., BLUNT S., GRAHAM J., KONOPACKY Q. et al.
ApJ Letters, 814, L3
paper arxiv ADS
Dynamical Masses of Young M Dwarfs. I. Masses and Orbital Parameters of GJ 3305 AB, the Wide Binary Companion to the Imaged Exoplanet Host 51 Eri
2015
MONTET B., BOWLER B., SHKOLNIK E., DECK K., WANG J. et al.
ApJ Letters, 813, L11
paper arxiv
ADS
Discovery and spectroscopy of the young Jovian planet 51 Eri b with the Gemini Planet Imager
2015
MACINTOSH, B., GRAHAM, J., BARMAN, T., De ROSA, R., KONOPACKY, Q. & 83 additional authors
Science, in press
arxiv
Science
ADS
