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Line Profile and Photometric Variations of the Be Star η Cen1

Published online by Cambridge University Press:  12 April 2016

R. Levenhagen ,
N. Leister ,
E. Janot-Pacheco ,
J. Zorec ,
A. Hubert  and
M. Floquet
R. Levenhagen
Affiliation:
Instituto de Astronomia, Geofísica e Ciências Atmosféricas, Brazil
N. Leister
Affiliation:
Instituto de Astronomia, Geofísica e Ciências Atmosféricas, Brazil
E. Janot-Pacheco
Affiliation:
Instituto de Astronomia, Geofísica e Ciências Atmosféricas, Brazil
J. Zorec
Affiliation:
Institut d’Astrophysique de Paris - CNRS
A. Hubert
Affiliation:
Observatoire de Paris-Meudon/DASGAL-UMR 8633 CNRS, France
M. Floquet
Affiliation:
Observatoire de Paris-Meudon/DASGAL-UMR 8633 CNRS, France

Abstract

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We review the current status of our monitoring project on Be stars. Line profile variations in Helλ667.8 nm were detected in the Be star η Cen, by means of high resolution and S/N Spectroscopic observations. They were interpreted in terms of nonradial pulsations (NRP). The fundamental parameters of η Cen obtained from BCD spectrophotometric data and interpreted using models of rapidly rotating stars, have been used to estimate the stellar rotational frequency.

Type
Part 2.2. B-Type Stars
Information
International Astronomical Union Colloquium , Volume 185: Radial and Nonradial Pulsations as Probes of Stellar Physics , 2002 , pp. 252 - 253
Copyright
Copyright © Astronomical Society of the Pacific 2002

Footnotes

1

The follow-up spectroscopic data were gathered with the 1.60m Telescope of the Observatorio do Pico dos Dias MCT/LNA (Brazil)

References

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