A Planet in a Circular Orbit with a 6 Year Period

Alan J. Penny; Brad D. Carter; C. G. Tinney; Chris McCarthy; Debra A. Fischer; Geoffrey W. Marcy; Hugh R. A. Jones; R. Paul Butler

arxiv: astro-ph/0307066 · v1 · submitted 2003-07-03 · 🌌 astro-ph

A Planet in a Circular Orbit with a 6 Year Period

Brad D. Carter , R. Paul Butler , C. G. Tinney , Hugh R. A. Jones , Geoffrey W. Marcy , Chris McCarthy , Debra A. Fischer , Alan J. Penny This is my paper

classification 🌌 astro-ph

keywords planetorbitcirculardopplerperiodprecisionyearanglo-australian

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Precision Doppler velocity measurements from the 3.9--m Anglo-Australian Telescope reveal a planet with a 6 year period orbiting the G5 dwarf HD 70642. The a = 3.3 AU orbit has a low eccentricity (e = 0.1), and the minimum (\msini) mass of the planet is 2.0 \mjup. The host star is metal rich relative to the Sun, similar to most stars with known planets. The distant and approximately circular orbit of this planet makes it a member of a rare group to emerge from precision Doppler surveys.

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A Planet in a Circular Orbit with a 6 Year Period

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