Hostname: page-component-5b777bbd6c-v47t2 Total loading time: 0 Render date: 2025-06-20T09:31:44.374Z Has data issue: false hasContentIssue false
  • English
  • Français

Multi-frequency Variations in the Be star ζ Ophiuchi

Published online by Cambridge University Press:  12 April 2016

A.D. de Souza Jr ,
E. Janot-Pacheco ,
N.V. Leister ,
S. Jankov ,
A.M. Hubert  and
M. Floquet
A.D. de Souza Jr
Affiliation:
Institute Astronômico e Geofísico, Universidade de São Paulo, C.P. 3386, 01060-970, São Paulo, SP, Brasil
E. Janot-Pacheco
Affiliation:
Institute Astronômico e Geofísico, Universidade de São Paulo, C.P. 3386, 01060-970, São Paulo, SP, Brasil
N.V. Leister
Affiliation:
Institute Astronômico e Geofísico, Universidade de São Paulo, C.P. 3386, 01060-970, São Paulo, SP, Brasil
S. Jankov
Affiliation:
Astronomska Opservatorija Beograd, Volgina 7, 11050 Beograd, Yugoslavia
A.M. Hubert
Affiliation:
Dasgal, UMR 8633 DU CNRS, Observaroire de Meudon, 92195 Meudon, France
M. Floquet
Affiliation:
Dasgal, UMR 8633 DU CNRS, Observaroire de Meudon, 92195 Meudon, France

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

In this work we have adopted the non radial pulsation (NRP) model in order to explain the rapid spectroscopic time variations observed in the Be star ζ Ophiuchi. Time series analysis were performed with CLEAN and Sequential CLEANEST techniques. We have also applied a different version of the Local CLEANEST that is optimized for multiperiodic signals observed in monosite campaigns. The frequencies of 7.19 and 11.89 cycles/day have been identified. These frequencies were found in previous papers about the star.

Type
3. Periodic Variations
Information
International Astronomical Union Colloquium , Volume 175: The Be Phenomenon in Early-Type Stars , 2000 , pp. 276 - 279
Copyright
Copyright © Astronomical Society of the Pacific 2000

References

Emilio, M. 1997, MsC. Thesis, Astronômico e Geofísico, Univ. de São Paulo Google Scholar
Ferraz-Mello, S. 1981 AJ 86, 619 CrossRefGoogle Scholar
Foster, G. 1995, AJ 109, 1889 Google Scholar
Gies, D.R., Kullavanijaya, A. 1988, ApJ 326, 813 Google Scholar
Kambe, E., Hirata, R., Ando, H. et al. 1997, ApJ 481, 406 CrossRefGoogle Scholar
Reid, A.H.N., Bolton, C.T., Crowe, R.A. et al. 1993, ApJ 417, 320 CrossRefGoogle Scholar
Roberts, D.H., Lehar, J., Dreher, J.W. 1987, AJ 93, 968 CrossRefGoogle Scholar