Asteroseismology of the planet-hosting star μ Arae I. The acoustic spectrum

F. Bouchy; M. Bazot; N. C. Santos; S. Vauclair; D. Sosnowska

doi:10.1051/0004-6361:20052697

Asteroseismology of the planet-hosting star μ Arae I. The acoustic spectrum

F. Bouchy, M. Bazot, N. C. Santos, S. Vauclair, D. Sosnowska

Center for Space Science

Research output: Contribution to journal › Article › peer-review

Abstract

We present HARPS spectroscopy of μ Arae (HD 160691) performed for studying the origin of the metallicity excess in this planet-hosting stars. The asteroseismologic campaign led to the previously reported discovery of a 14 earth mass planetary companion (Santos et al. 2004b, A&A, 426, L19). The present analysis reinforces this interpretation by excluding other possible processes for explaining the observed Doppler variation and leads to the identification of up to 43 p-mode oscillations with l = 0-3, frequencies in the range 1.3-2.5 mHz and amplitudes in the range 10-40 cm s^-1.

Original language	English (US)
Pages (from-to)	609-614
Number of pages	6
Journal	Astronomy and Astrophysics
Volume	440
Issue number	2
DOIs	https://doi.org/10.1051/0004-6361:20052697
State	Published - Sep 2005

Keywords

Stars: individual: μ Arae
Stars: oscillations
Stars: planetary systems
Techniques: radial velocities

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

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10.1051/0004-6361:20052697

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title = "Asteroseismology of the planet-hosting star μ Arae I. The acoustic spectrum",

abstract = "We present HARPS spectroscopy of μ Arae (HD 160691) performed for studying the origin of the metallicity excess in this planet-hosting stars. The asteroseismologic campaign led to the previously reported discovery of a 14 earth mass planetary companion (Santos et al. 2004b, A&A, 426, L19). The present analysis reinforces this interpretation by excluding other possible processes for explaining the observed Doppler variation and leads to the identification of up to 43 p-mode oscillations with l = 0-3, frequencies in the range 1.3-2.5 mHz and amplitudes in the range 10-40 cm s-1.",

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T1 - Asteroseismology of the planet-hosting star μ Arae I. The acoustic spectrum

AU - Bouchy, F.

AU - Bazot, M.

AU - Santos, N. C.

AU - Vauclair, S.

AU - Sosnowska, D.

PY - 2005/9

Y1 - 2005/9

N2 - We present HARPS spectroscopy of μ Arae (HD 160691) performed for studying the origin of the metallicity excess in this planet-hosting stars. The asteroseismologic campaign led to the previously reported discovery of a 14 earth mass planetary companion (Santos et al. 2004b, A&A, 426, L19). The present analysis reinforces this interpretation by excluding other possible processes for explaining the observed Doppler variation and leads to the identification of up to 43 p-mode oscillations with l = 0-3, frequencies in the range 1.3-2.5 mHz and amplitudes in the range 10-40 cm s-1.

AB - We present HARPS spectroscopy of μ Arae (HD 160691) performed for studying the origin of the metallicity excess in this planet-hosting stars. The asteroseismologic campaign led to the previously reported discovery of a 14 earth mass planetary companion (Santos et al. 2004b, A&A, 426, L19). The present analysis reinforces this interpretation by excluding other possible processes for explaining the observed Doppler variation and leads to the identification of up to 43 p-mode oscillations with l = 0-3, frequencies in the range 1.3-2.5 mHz and amplitudes in the range 10-40 cm s-1.

KW - Stars: individual: μ Arae

KW - Stars: oscillations

KW - Stars: planetary systems

KW - Techniques: radial velocities

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JO - Astronomy and Astrophysics

JF - Astronomy and Astrophysics

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ER -

Asteroseismology of the planet-hosting star μ Arae I. The acoustic spectrum

Abstract

Keywords

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