English

A Planet in a Circular Orbit with a 6 Year Period

Astrophysics 2009-11-10 v1

Abstract

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.

Keywords

Cite

@article{arxiv.astro-ph/0307066,
  title  = {A Planet in a Circular Orbit with a 6 Year Period},
  author = {Brad D. Carter and R. Paul Butler and C. G. Tinney and Hugh R. A. Jones and Geoffrey W. Marcy and Chris McCarthy and Debra A. Fischer and Alan J. Penny},
  journal= {arXiv preprint arXiv:astro-ph/0307066},
  year   = {2009}
}