A probable planetary companion to HD 39091 from the Anglo-Australian Planet Search

Jones, H.R.A.; Butler, R.P.; Tinney, C.G.; Marcy, G.W.; Penny, A.J.; McCarthy, C.; Pourbaix, D.

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Author

Jones, H.R.A.

Butler, R.P.

Tinney, C.G.

Marcy, G.W.

Penny, A.J.

McCarthy, C.

Pourbaix, D.

Abstract

We report the detection of a extrasolar planet candidate orbiting the G1 V star HD 39091. The orbital period is 2083 d and the eccentricity is 0.62. With a minimum (M sin i) mass of 10.3 MJUP this object falls near the high mass end of the observed planet mass function, and may plausibly be a brown dwarf. Other characteristics of this system, including orbital eccentricity and metallicity, are typical of the well populated class of radial velocity planets in eccentric orbits around metal-rich stars.