Planet eps Eridani b

Name eps Eridani b
Discovered in 2000
Mass 1.55 (± 0.24) MJ
Semi-major axis 3.39 (± 0.36) AU
Orbital period 2502.0 (± 10.0) day
Eccentricity 0.702 (± 0.039)
ω 47.0 (± 3.0) deg
Tperi 54207.0 (± 7.0) JD
Radius
Inclination 30.1 (± 3.8) deg;
Update Sept. 7, 2012
Detection Method Radial Velocity
Mass Detection Method
Radius Detection method
Molecules detected
Primary transit
Secondary transit
Anomaly angle
impact Parameter b
Time Vr=0
Velocity Semiamplitude K
Calculated temperature
Measured temperature
Hottest point longitute
Surface gravity log(g/gH)
Alternate Names

Graphical Ephemeris (Beta Version)

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

Star

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
Magnetic Field
RA2000 03:32:55.0
Dec2000 -09:27:29
Alternate Names
Planetary system 2 planet

More data


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ApJ

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

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ApJ. Letters, 598, L51
paper

HST Fine Guidance Sensor Astrometry of the Extrasolar Planet Candidates epsilon Eri and upsilon And - A Progress Report.
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BAAS, 35, N. 7.10
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.
preprint

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

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
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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

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

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

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

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
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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