2012ApJ...744..138B

Query : 2012ApJ...744..138B

2012ApJ...744..138B - Astrophys. J., 744, 138 (2012/January-2)

Confirming fundamental properties of the exoplanet host star ε Eridani using the Navy Optical Interferometer.

BAINES E.K. and ARMSTRONG J.T.

Abstract (from CDS):

We measured the angular diameter of the exoplanet host star ε Eridani using the Navy Optical Interferometer. We determined its physical radius, effective temperature, and mass by combining our measurement with the star's parallax, photometry from the literature, and the Yonsei-Yale isochrones, respectively. We used the resulting stellar mass of 0.82±0.05 M☉ plus the mass function from Benedict et al. to calculate the planet's mass, which is 1.53±0.22 MJupiter. Using our new effective temperature, we also estimated the extent of the habitable zone for the system.

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Journal keyword(s): planetary systems - stars: individual: HD 22049 - techniques: high angular resolution - techniques: interferometric

VizieR on-line data: <Available at CDS (J/ApJ/744/138): table2.dat>

Errata: erratum vol. 748, art. 72 (2012)

Simbad objects: 2

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Number of rows : 2
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 * eps Eri BY* 03 32 55.8444911587 -09 27 29.739493865 5.19 4.61 3.73 3.00 2.54 K2V 2073 1
2 * omi01 Eri dS* 04 11 51.9390483214 -06 50 15.286647564   4.357 4.026     F0III 159 0

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