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Title: High-Resolution Magnetic Field Measurements of RR Lyrae Stars with SemPol
Authors: Guggenberger, E
Kolenberg, Katrien
Marsden, S. C
Waite, I. A
Henrichs, H. F
Lueftinger, T
Issue Date: 2009
Publisher: AMER INST PHYSICS
Host Document: STELLAR PULSATION: CHALLENGES FOR THEORY AND OBSERVATION vol:1170 pages:278-280
Conference: International Conference on Stellar Pulsation - Challenges for Theory and Observation location:Santa Fe: NM date:MAY 31-JUN 05, 2009
Abstract: For more than 30 years, there have been attempts to explain the Blazhko effect in RR Lyrae stars with the presence of strong magnetic fields (Mestel 1975, Cousins 1983, Shibahashi & Takata 1995, Shibahashi 2000). These so-called magnetic models are counted among the most promising explanations for the century-old puzzle of the Blazhko effect. The measurements of magnetic fields in RR Lyrae stars, however, have for a long time been sparse and contradictory. In December 2008 we devoted an observing campaign to the measurement of magnetic fields of a sample of bright RR Lyrae pulsators using the SemPol instrument at the 3.9 m Anglo-Australian Telescope. Preliminary results and challenges of this campaign are presented in this paper.
ISBN: 978-0-7354-0707-7
ISSN: 0094-243X
Publication status: published
KU Leuven publication type: IC
Appears in Collections:Institute of Astronomy

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