High-Resolution Magnetic Field Measurements of RR Lyrae Stars with SemPol

被引:0
|
作者
Guggenberger, E. [1 ]
Kolenberg, K. [1 ]
Marsden, S. C. [2 ]
Waite, I. A. [3 ]
Henrichs, H. F. [4 ]
Lueftinger, T. [1 ]
机构
[1] Univ Vienna, Inst Astron, Turkenschanzstr 17, A-1180 Vienna, Austria
[2] Anglo Australian Observ, Epping, NSW 1710, Australia
[3] Univ Southern Queensland, Fac Sci, Toowoomba, Qld 4350, Australia
[4] Univ Amsterdam, Astron Inst, NL-1098 XH Amsterdam, Netherlands
基金
奥地利科学基金会;
关键词
RR Lyrae Stars; Spectropolarimetry; Magnetic Fields; VARIABILITY;
D O I
暂无
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
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 3.9m Anglo-Australian Telescope. Preliminary results and challenges of this campaign are presented in this paper.
引用
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页码:278 / +
页数:2
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