Hostname: page-component-cd9895bd7-lnqnp Total loading time: 0 Render date: 2024-12-25T17:31:05.962Z Has data issue: false hasContentIssue false
  • English
  • Français

Are RRab stars fully radial?

Published online by Cambridge University Press:  18 February 2014

József M. Benkő  and
Róbert Szabó
József M. Benkő
Affiliation:
Konkoly Observatory, MTA CSFK, Konkoly Thege M. u. 15-17., H-1121, Budapest, Hungary email: [email protected], [email protected]
Róbert Szabó
Affiliation:
Konkoly Observatory, MTA CSFK, Konkoly Thege M. u. 15-17., H-1121, Budapest, Hungary email: [email protected], [email protected]
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.

Thanks to the space missions CoRoT and Kepler new oscillation frequencies have been discovered in the Fourier spectra of Blazhko RR Lyrae stars. The period doubling (PD) yields half-integer frequencies between the fundamental mode and its harmonics. In many cases the first and/or second radial overtone frequencies also appear temporally. Some stars show extra frequencies that were identified as potential non-radial modes. We show here that all these frequencies can be explained by pure radial pulsation as linear combinations of the frequencies of radial fundamental and overtone modes.

Keywords

stars: oscillationsstars: horizontal-branchstars: variables: other
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 9 , Symposium S301: Precision Asteroseismology , August 2013 , pp. 383 - 384
Copyright
Copyright © International Astronomical Union 2014 

References

Balona, L. A., Catanzaro, G., Crause, L., et al. 2013, MNRAS, 432, 2808CrossRefGoogle Scholar
Benkő, J. M., Kolenberg, K., Szabó, R., et al. 2010, MNRAS 409 1585 (B10)Google Scholar
Chadid, M., Benkő, J. M., Szabó, R., et al. 2010, A&A, 510, A39Google Scholar
Guggenberger, E., Kolenberg, K., Nemec, J. M., et al. 2012, MNRAS 424 649 (G12)Google Scholar
Poretti, E., Paparó, M., Deleuil, M., et al. 2010, A&A, 520, A108Google Scholar
Szabó, R., Kolláth, Z., Molnár, L., et al. 2010, MNRAS, 409, 1244Google Scholar