Planet eps Eridani b

Name eps Eridani b
Planet Status Confirmed
Discovered in 2000
Mass 0.76 ( -0.11 +0.14 ) MJ +
Mass*sin(i) 0.77 ( -0.2 +0.2 ) MJ +
Semi-Major Axis 3.53 (± 0.06) AU +
Orbital Period 2671.0 ( -16.5 +16.2 ) day +
Eccentricity 0.26 (± 0.04) +
ω 130.6 ( -12.6 +9.5 ) deg +
Tperi 2444411.5 ( -82.0 +76.0 ) JD +
Radius
Inclination 166.5 ( -6.7 +6.6 ) deg +
Update 2023-07-26
Detection Method Radial Velocity
Mass Detection Method Astrometry
Radius Detection Method
Primary transit
Secondary transit
λ
Impact Parameter b
Time Vr=0
Velocity Semiamplitude K 9.98 ( -0.38 +0.43 ) m/s
Calculated temperature
Measured temperature
Hottest point longitude
Geometric albedo
Surface gravity log(g/gH)
Alternate Names HD 22049, GJ 144, SAO 130564, HR 1084

Star

eps Eridani
Name eps Eridani
Distance 3.2 pc
Spectral type K2 V
Apparent magnitude V 3.73
Mass 0.83 (± 0.05) MSun
Age 0.66 Gyr
Effective temperature 5116.0 K
Radius 0.895 (± 0.085) RSun
Metallicity [Fe/H] -0.13 (± 0.04)
Detected Disc Imaging
Magnetic Field
RA2000 03:32:55.0
Dec2000 -09:27:29
Alternate Names HD 22049
Planetary system 1 planet

More data

Observability Predictor

Remarks

19 Oct 2010: Simpson et al. (2010) infer the orbital inclination 44 deg. from the parent star rotation, deriving a planet mass 1.5+2.5-0.5MJ; but the coplanarity of stellar equator with planet orbits is generally not demonstrated.
20 oct. 2002: The hypothetical planet epsilon Eridani c is suspected from the dust ring morphology (Quillen & Thorndike 2002)
2001: Marcy et al. claim that " The Doppler behavior of magnetically active stars remains poorly explored, because so few stars are as active as Epsilon Eridani. Thus, Campbell's interpretation of a planet remains controversial."

Other web-pages


Related publications

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2010 HEINZE A., HINZ Ph., SIVANANDAN S., KENWORTHY M., MEYER M. & MILLER D.
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paper

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paper

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Transit of Luyten 726-8 within 1 ly from Epsilon Eridani
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Astron. & Astrophys.
paper

Stellar coronal magnetic fields and star-planet interaction
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Astron. & Astrophys., 505, 339
paper

Epsilon Eridani's Planetary Debris Disk: Structure and Dynamics based on Spitzer and CSO Observations
2009 BACKMAN D., MARENGO M., STEPELFELDT K., SU K., WILNER D., DOWELL C., WATSON D., STANSBERRY J., RIEKE G., MEGEATH T., FAZIO G. & WERNER M.
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paper

Dynamical stability of the inner belt around Epsilon Eridani
2009 BROGI M., MARZARI A. & PAOLICCHI P.
Astron. & Astrophys., 499, L13
paper

Spitzer/Infrared Array Camera Limits to Planetary Companions of Fomalhaut and epsilon Eridani
2009 MARENGO M., STAPELFELDT K., WERNER M., HORA J., FAZIO G., SCHUSTER M., CARSON J. & MEGEATH S.
ApJ., 700, 1647
paper

Planets and Debris Disks: Results from a Spitzer/MIPS Search for Infrared Excess
2009 BRYDEN G., BEICHMAN C., CARPENTER J., RIEKE G., STAPELFELDT K., WERNER M., TANNER A., LAWLER S., WYATT M., TRILLING D., SU K., BLAYLOCK M. & STANSBERRY J.
ApJ., 705, 1226
paper

Expected Results from PICTURE Observations of Exozodiacal Dust around Epsilon Eridani
2009 MENDILLO Ch., CHAKRABARTI S., COOK T., HICKS B., JUNG P., LEVINE B. & SHAO M.
BAAS, 42, no 1, 421.03
abstract

Deep L' and M-band Imaging for Planets Around Vega and epsilon Eridani
2008 HEINZE A., HINZ Ph., KENWORTHY M., MILLER D. & SIVANDANDAN S.
ApJ., 688, 583
paper

Dynamics of small bodies in planetary systems
2008 WYATT M.
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Extrasolar Giant Planets and X-ray Activity
2008 KASHYAP V., DRAKE J. & SAAR S.
ApJ., 687, 1339
paper   arxiv

A comprehensive examination of the Eps Eri system -- Verification of a 4 micron narrow-band high-contrast imaging approach for planet searches
2008 JANSON M., REIFERT S., BRANDNER W., HENNING Th., LENZEN R. & HIPPLER S.
Astron. & Astrophys., 488, 771
paper

How to Image Epsilon Eridani b
2008 HEINZE A., HINZ Ph., SIVANANDAM S. & KENWORTHY M.
BAAS, 40 no3, 44.03
abstract

Radio Emission from Exoplanets
2008 GEORGE S. & STEVENS I.
paper

Evolution of Debris Disks
2008 WYATT M.
Ann. Rev. Astron. Astrophys., 46, 339
paper

The First High-Precision Radial Velocity Search for Extra-Solar Planets
2008 WALKER G.
New Astronomy
preprint

Abundance Stratification of Exoplanet Host Stars
2008 SAFFE C., LEVATO H., LOPEZ-GARCIA Z., JOFRE E., PETRUCCI R. & GONZALEZ E.
Astron. & Astrophys.
preprint

Giant Metrewave Radio Telescope low-frequency observations of extrasolar planetary systems
2007 GEORGE S. & STEVENS I.
MNRAS, 382, 455
paper  

GMRT Low Frequency Observations of Extrasolar Planetary Systems
2007 GEORGE S. & STEVENS I.
MNRAS
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Predicting low-frequency radio fluxes of known extrasolar planets
2007 GRIEßMEIER J.-M., ZARKA P. & SPREEUW H.
Astron. & Astrophys., 475, 359
paper

Constraints on Extrasolar Planet Populations from VLT NACO/SDI and MMT SDI and Direct Adaptive Optics Imaging Surveys: Giant Planets are Rare at Large Separations
2007 NIELSEN E., CLOSE L., BILLER B. & MASCIADRI E.
ApJ., 674, 466
paper

Parent stars of extrasolar planets VIII. Chemical abundances for 18 elements in 31 stars
2007 GONZALEZ G. & LAWS C.
MNRAS, 378, 1141
paper  

Extrasolar planet taxonomy: a new statistical approach
2007 MARCHI S.
ApJ., 666, 475
arxiv   paper

NACO-SDI Direct Imaging Search for the Exoplanet eps Eri b
2007 JANSON M., BRANDNER W., HENNING Th., LENZEN R., McARTHUR B., BENEDICT F., REFFERT S., NIELSEN E., CLOSE L., BILLER B., KELLNER S., GÜNTHER E., HATZES A., MASCIADRI E., GEISSLER K. & HARTUNG M.
Astron. J., 133, 2442
paper

Planetary Formation Scenarios Revistied: Core-Accretion Versus Disk Instability
2007 MATSUO T., SHIBAI H., OOTSUBO T. & TAMURA M.
ApJ., 662, 1282
paper

A stability catalogue of the habitable zones in extrasolar planetary systems
2007 SANDOR Z., SULI A., ERDI B., PILAT-LOHINGER E. & DVORAK R.
MNRAS, 375, 1495
paper

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2007 MANDELL A., RAYMOND S. & SIGURDSSON S.
ApJ., 660, 823
paper

Does life exist on this exoplanet?
2007 VILLARD R.
Astronomy, 35, 44
abstract

Coronagraphic Search for Extra-Solar Planets around \epsilon Eri and Vega
2006 ITOH Y., OASA Y. & FUKAGAWA M.
ApJ., 652, 1729
paper

The Extrasolar Planet eps Eridani b - Orbit and Mass
2006 BENEDICT F., McARTHUR B., GATEWOOD G., NELAN E., COCHRAN W., HETZES A., ENDL M., WITTENMYER R., BALIUNAS S., WALKER G., YANG S., KÜRSTER M., ELS S. & PAULSON D.
Astron. J., 132, 2206
paper

Formation of Narrow Dust Rings in Circumstellar Debris Disks
2006 BESLA G. & WU Y.
ApJ., 655, 528
paper

Catalog of Nearby Exoplanets
2006 BUTLER P., WRIGHT J., MARCY G., FISCHER D., VOGT S., TINNEY Ch., JONES H., CARTER B., JOHNSON J., McCARTHY Ch. & PENNY A.
ApJ., 646, 505
paper   arxiv   ADS  

Detecting a rotation in the epsilon Eridani debris disc
2006 POULTON C., GREAVES J. & CAMERON A.
MNRAS, 372, 53
paper  

A Spitzer/IRAC Search for Substellar Companions of the Debris Disk Star Epsilon Eridani
2006 MARENGO M., MEGEATH S., FAZIO G.,STAPELFELDT K., WERNER M. & BACKMAN D.
ApJ.
preprint

Two Suns in The Sky: Stellar Multiplicity in Exoplanet Systems
2006 RAGHAVAN D., HENRY T., MASON B., SUBASAVAGE J., JAO W.-C., BEAULIEU T. & HAMBLY N.
ApJ., 646, 523
paper

Habitability of known exoplanetary systems based on measured stellar properties
2006 JONES B., SLEEP P. & UNDERWOOD D.
ApJ., 649, 1010
paper

A search for water masers toward extrasolar planets
2006 MINIER V. & LINEWEAVER Ch.
Astron. & Astrophys., 449, 805
paper

Differential Rotation of Epsilon Eridani Detected by MOST
2006 CROLL B., WALKER G., KUSCHNIG R., MATTHEWS J., ROWE J., WALKER A., RUCINSKI S., HATZES A., COCHRAN W., ROBB R., GUENTHER D., MOFFAT A., SASSELOV D. & WEISS W.
ApJ., 648, 607
paper

Structure in the epsilon Eridani Debris Disk.
2005 GREAVES J., HOLLAND W. WYATT M ., DENT W., ROBSON E., COULSON I., JENNESS T., MORIARTY-SCHIEVEN G., DAVIS G., BUTNER H., GEAR W., DOMINIK C. & WALKER H.
ApJ., 619, L187
paper

Oxygen abundances in planet-harbouring stars. Comparison of different abundance indicators
2005 ECUVILLON A., ISRAELIAN G., SANTOS N., SHCHUKINA N., MAYOR M. & REBOLO R.
Astron. & Astrophys., 445, 633
paper

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

Numerical Modelling of Dusty Debris Disks.
2005 DELLER A. & MADDISON S.
ApJ., 625, 390

A Search for Potential Habitable Planets in Multiple Planet Systems.
2004 MADDISON S., GINO M., MUNRO A. & HINDS P.
BAAS, 36, #62.03
abstract

SIMBA's view of the ε Eri disk.
2004 SCHÜTZ O., NIELBOCK M., WOLF S., HENNING Th. & ELS S.
Astron. & Astrophys., 414, L9
paper

Limits on the Optical Brightness of the Epsilon Eridani Dust Ring.
2004 PROFFITT C., SAHU K., LIVIO M., KRIST J., CALZETTI D., GILLILAND R., GRADY C., LINDLER D., WOODGATE B., HEAP S., CLAMPIN M., GULL Th. a LISSE C.
ApJ

A Search for Substellar Companions of the Debris Disk Star epsilon Eridani with the Spitzer Space Telescope.
2004 MARENGO M., MEGEATH T., FAZIO G., BACKMAN D., STAPELFELDT K., WARNER M., BEICHMAN C., SU K., STANSBERRY J., RIEKE G. & HINES D.
BAAS, 36, No.5 #11.
abstract

The Dynamical Influence of a Planet at Semimajor Axis 3.4 AU on the Dust Around Epsilon Eridani.
2004 MORAN S., KUCHNER M. & HOLMAN M.
ApJ., 612, 1163
paper

A Mass for the Extrasolar Planet epsilon Eri b.
2004 BENEDICT F., McARTHUR B. & The Are There Planets or Not? Team
BAAS, 36, #41.02
abstract

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

The Debris Disk around epsilon Eridani at 350 microns.
2003 WILNER D., DOWELL C., HOLMAN M. & KUCHNER M.
BAAS, 35, #130.03
abstract

Deep Keck adaptive optics searches for extrasolar planets in the dust of Epsilon Eridani and Vega.
2003 MACINTOSH B., BECKLIN E., KAISLER D., KONOPACKY Q. & ZUCKERMAN B.
ApJ.
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Modeling the Infrared Emission from the epsilon Eridani Disk.
2003 LI A., LUNINE J. & BENDO G.
ApJ. Letters, 598, L51
paper

HST Fine Guidance Sensor Astrometry of the Extrasolar Planet Candidates epsilon Eri and upsilon And - A Progress Report.
2003 BENEDICT F., McARTHUR E., HATZES A., NELAN E., COCHRAN W., GATEWOOD G., MARCY G., BUTLER P. & McGRATH M.
BAAS, 35, N. 7.10
abstract

The Orbits of Terrestrial Planets in the Habitable Zones of Known Exoplanetary Systems.
2002 JONES B. & SLEEP P.
paper

Structure in the Epsilon Eridani dusty disk caused by mean motion resonances with a 0.3 eccentricity planet at periastron.
2002 QUILLEN A. & THORNDIKE S.
ApJ. Letters, 578, L149
paper

Chemical Abundances of 15 Extrasolar-Planet Host Stars.
2002 ZHAO G., CHEN Y., QIU H. & LI. Z.
Astron. J., 124, 2224
paper

epsilon ERIDANI, upsilon ANDROMEDAE, 51 PEGASI, HD 209458, HD 196050.
2002 GREENHILL L.
IAU Circular, No. 7985
full text

Photospheric Abundances of Volatile and Refractory Elements in Planet-Harboring Stars.
2001 TAKEDA Y., SATO B., KAMBE E., AOKI W., HONDA S., KAWANOMOTO S., MASUDA S., IZUMIURA H., WATANABE E., KOYANO H., MAEHARA H., NORIMOTO Y., OKADA T., SHIMIZU Y., URAGUCHI F., YANAGIZAWA K. YOSHIDA M., NIYAMA S. & ANDO H.
PASJ, 53, 1211
paper

Evidence for a Long-period Planet Orbiting Epsilon Eridani.
2000 HATZES A., COCHRAN W., McARTHUR B., BALIUNAS S., WALKER G., CAMPBELL B., IRWIN A., YANG S., KUERSTER M., ENDL M., ELS S., BUTLER P. & MARCY G., 2000
ApJ. Letters, 544, L145
paper

The Actual Mass of the Object Orbiting Epsilon Eridani.
2000 GATEWOOD G.
BAAS, 32, 32.01
abstract

Catalogue of Stellar Diameters and Absolute Radii of Stars (CADARS) - Third edition -Comments and statistics
2000 PASINITTI-FRASCANI L., PASTORI L., COVINO S. & POZZI A.
Astron. & Astrophys., 367, 521
paper

A dust ring around Epsilon Eridani : analogue to the young Solar System
1998 GREAVES J., HOLLAND W., MORIARTY-SCHIVEN G., DENT W. ZUCKERMAN B., McCARTHY Ch., WEBB R., H.M. BUTNER H., GEAR W. & WALKER H.
ApJ.L., 506, L133
paper

Correlation of the Radial Velocity of Epsilon Eridani with Its Magnetic Cycle
1996 McMILLAN R., MOORE T., PERRY M. & SMITH P.
BAAS, 28, 1111
abstract

A search for Jupiter-mass companions to nearby stars
1995 WALKER G. A. H., WALKER A. R., IRWIN A. W., LARSON A. M., YANG S. L. S. & RICHARDSON D. C.
Icarus, 116, 359
paper

Epsilon Eridani's Planetary Companion and Circumstellar Dust.
1992 DAS S. & BACKMAN D.
BAAS, 24, 1228
abstract

The search for companions to epsilon Eridani.
1990 LAWTON A. & WRIGHT P.
JBIS, 43, 556

A search for substellar companions to solar-type stars.
1988 CAMPBELL B., WALKER G. & YANG S.
ApJ., 331, 902
abstract