The additional-mode garden of RR Lyrae stars
Konkoly Observatory, MTA CSFK, Konkoly Thege Miklós út 15-17, Budapest, H-1121 Hungary
2 Eötvös Loránd University, Pázmány Péter sétány 1/a, H-1117 Budapest Hungary
3 State University New York, 7060 Route 104, Oswego, NY 13126-3599 USA
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Published online: 27 October 2017
Space-based photometric missions revealed a surprising abundance of millimagnitude-level additional modes in RR Lyrae stars. The modes that appear in the modulated fundamental-mode (RRab) stars can be ordered into four major categories. Here we present the distribution of these groups in the Petersen diagram, and discuss their characteristics and connections to additional modes observed in other RR Lyrae stars.
© Owned by the authors, published by EDP Sciences, 2017
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (http://creativecommons.org/licenses/by/4.0/).