The BOES Spectropolarimeter for Zeeman Measurements of Stellar Magnetic Fields
Open Access
- 1 September 2007
- journal article
- Published by IOP Publishing in Publications of the Astronomical Society of the Pacific
- Vol. 119 (859), 1052-1062
- https://doi.org/10.1086/521959
Abstract
We introduce a new polarimeter installed on the high-resolution fiber-fed echelle spectrograph (called BOES) of the 1.8-m telescope at the Bohyunsan Optical Astronomy Observatory, Korea. The instrument is intended to measure stellar magnetic fields with high-resolution (R $sim$ 60000) spectropolarimetric observations of intrinsic polarization in spectral lines. In this paper we describe the spectropolarimeter and present test observations of the longitudinal magnetic fields in some well-studied F-B main sequence magnetic stars (m_v < 8.8^m). The results demonstrate that the instrument has a high precision ability of detecting the fields of these stars with typical accuracies ranged from about 2G to a few tens of gauss.Comment: 12 figure
Keywords
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