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Astron. Astrophys. 349, 220-224 (1999)


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Line profile variation and planets around 51 Pegasi and [FORMULA] Andromedae *

P. François 1,2, D. Briot 2, F. Spite 2 and J. Schneider 3

1 European Southern Observatory (ESO), Santiago de Chile, Chile (fpatrick@eso.org)
2 Observatoire de Paris-Meudon, DASGAL, F-92195 Meudon Cedex, France (Danielle.Briot, Francois.Spite@obspm.fr)
3 Observatoire de Paris-Meudon, DARC (Jean.Schneider@obspm.fr)

Received 4 November 1998 / Accepted 23 June 1999

Abstract

We report results of high resolution spectroscopic observations of the stars 51 Peg and [FORMULA] And. Variations in the shape of different lines are studied in the light of a recent controversy concerning the existence of a planet orbiting around 51 Peg. Bisector variations have been noticed for both stars, their shapes and variations are not easily understood, but they do not indicate any interpretation differing from the now classical interpretation by a planet.

Key words: techniques: radial velocities – techniques: spectroscopic – planets and satellites: general – stars: individual: 51 Peg – stars: individual: AE And

* based on observations carried out at the Canada-France-Hawaii Telescope

Send offprint requests to: P. François

© European Southern Observatory (ESO) 1999

Online publication: August 25, 1999

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