Hostname: page-component-745bb68f8f-kw2vx Total loading time: 0 Render date: 2025-01-10T21:44:01.586Z Has data issue: false hasContentIssue false
  • English
  • Français

Active Longitudes and Flip-Flops in Binary Stars

Published online by Cambridge University Press:  12 July 2007

Heidi Korhonen  and
Silva P. Järvinen
Heidi Korhonen
Affiliation:
Astrophysikalisches Institut Potsdam, An der Sternwarte 16, D-14482 Potsdam, Germany
Silva P. Järvinen
Affiliation:
Astrophysikalisches Institut Potsdam, An der Sternwarte 16, D-14482 Potsdam, Germany Astronomy Division, P.O.Box 3000, FI-90014University of Oulu, Finland
Rights & Permissions [Opens in a new window]

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.

We present results from an investigation where the long-term photometry of several magnetically active RS CVn binaries is studied to see whether or not they show permanent active longitudes and the flip-flop phenomenon. We confirm that it is very common for the active regions to occur on permanent active longitudes. Many of our target stars also show clear flip-flop phenomenon, but often the data set is not long enough for reliable determination of the flip-flop period.

Keywords

stars: activitystars: late-typestars: spots
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 2 , Symposium S240: Binary Stars as Critical Tools & Tests in Contemporary Astrophysics , August 2006 , pp. 453 - 455
Copyright
Copyright © International Astronomical Union 2007

References

Berdyugina, S.V. & Tuominen, I. 1998, A&A 336, 25 Google Scholar
Berdyugina, S.V. & Usoskin, I.G. 2003, A&A 405, 1121 Google Scholar
Järvinen, S.P., Berdyugina, S.V., Tuominen, I., Cutispoto, G., & Bos, M. 2005, A&A 432, 657 Google Scholar
Jetsu, L., Pelt, J., & Tuominen, I. 1993, A&A 278, 449 Google Scholar
Korhonen, H. & Elstner, D. 2005, A&A 440, 1161 Google Scholar
Lanza, A.F., Catalano, S., Cutispoto, G., Pagano, I., & Rodonò, M. 1998, A&A, 332, 541 Google Scholar