The ELODIE survey for northern extra-solar planets

A. C. M. Correia; S. Udry; M. Mayor; A. Eggenberger; D. Naef; J.-L. Beuzit; C. Perrier; D. Queloz; J.-P. Sivan; F. Pepe; N. C. Santos; D. Ségransan

doi:10.1051/0004-6361:20078908

Home

All issues

Volume 479 / No 1 (February III 2008)

A&A, 479 1 (2008) 271-275

Abstract

Free Access

Issue		A&A Volume 479, Number 1, February III 2008


Page(s)		271 - 275
Section		Planets and planetary systems
DOI		https://doi.org/10.1051/0004-6361:20078908
Published online		12 December 2007

A&A 479, 271-275 (2008)

IV. HD 196885, a close binary star with a 3.7-year planet

A. C. M. Correia¹^,2, S. Udry², M. Mayor², A. Eggenberger³^,2, D. Naef⁴, J.-L. Beuzit³, C. Perrier³, D. Queloz², J.-P. Sivan⁵, F. Pepe⁵, N. C. Santos⁶^,2 and D. Ségransan⁵

¹ Departamento de Física da Universidade de Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal e-mail: correia@ua.pt
² Observatoire de Genève, 51 Ch. des Maillettes, 1290 Sauverny, Switzerland
³ Laboratoire d'Astrophysique de Grenoble, Université Joseph Fourier, BP 53, 38041 Grenoble Cedex 9, France
⁴ European Southern Observatory, Casilla 19001, Santiago 19, Chile
⁵ Laboratoire d'Astrophysique de Marseille, Traverse du Siphon BP 8, 13376 Marseille Cedex 12, France
⁶ Centro de Astrofísica da Universidade do Porto, Rua das Estrelas, 4150-762 Porto, Portugal

Received: 23 October 2007
Accepted: 28 November 2007

Abstract

Aims.We aim to significantly increase the number of detected extra-solar planets in a magnitude-limited sample to improve our knowledge of their orbital element distributions and thus obtain better constraints for planet-formation models.

Methods.Radial-velocity data were taken at Haute-Provence Observatory (OHP, France) with the ELODIE echelle spectrograph.

Results.We report the presence of a planet orbiting HD 196885 A, with an orbital period of 1349 days. This star was previously suggested to host a $ 386 $ -day planet, but we cannot confirm its existence. We also detect the presence of a stellar companion, HD 196885 B, and give some constraints on its orbit.

Key words: stars: individual: HD 196885 A / stars: individual: HD 196885 B / stars: binaries: visual / stars: planetary systems / techniques: radial velocities / methods: observational

© ESO, 2008

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.