Publication
Title
The space photometry revolution and our understanding of RR Lyrae stars
Author
Abstract
The study of RRLyrae stars has recently been invigorated thanks to the long, uninterrupted, ultra-precise time series data provided by the Kepler and CoRoT space telescopes. We give a brief overview of the new observational findings concentrating on the connection between period doubling and the Blazhko modulation, and the omnipresence of additional periodicities in all RR Lyrae subtypes, except for non-modulated RRab stars. Recent theoretical results demonstrate that if more than two modes are present in a nonlinear dynamical system such as a high-amplitude RR Lyrae star, the outcome is often an extremely intricate dynamical state. Thus, based on these discoveries, an underlying picture of complex dynamical interactions between modes is emerging which sheds new light on the century-old Blazhko-phenomenon, as well. New directions of theoretical efforts, like multidimensional hydrodynamical simulations, future space photometric missions and detailed spectroscopic investigations will pave the way towards a more complete understanding of the atmospheric and pulsation dynamics of these enigmatic touchstone objects.
Language
English
Source (journal)
EPJ Web of Conferences
Source (book)
Symposium 3 on Space Photometry Revolution - CoRoT / Kepler KASC-7 Joint, Meeting, JUL 06-11, 2014, Toulouse, FRANCE
Publication
Cedex a : Edp Sciences , 2015
ISSN
2100-014X
Volume/pages
101 (2015) , 4 p.
Article Reference
01003
ISI
000372491300004
Medium
E-only publicatie
Full text (Publisher's DOI)
Full text (open access)
UAntwerpen
Faculty/Department
Research group
Publication type
Subject
External links
Web of Science
Record
Identification
Creation 26.04.2018
Last edited 16.09.2021