Imaging Spectropolarimetry of the Photosphere and Chromosphere with IBIS

Details Imaging Spectropolarimetry of the Photosphere and Chromosphere with IBIS Imaging Spectropolarimetry of the Photosphere and Chromosphere with IBIS

Sep 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008espm...12.2.31r&link_type=abstract

"12th European Solar Physics Meeting, Freiburg, Germany, held September, 8-12, 2008. Online at http://espm.kis.uni-freiburg.de/,

Physics

Scientific paper

We present recent results based on high-resolution spectropolarimetry using IBIS, a dual Fabry-Perot imaging spectrometer. We describe the characteristics of the instrument and its capability to measure the full Stokes vector in a range of photospheric and chromospheric spectral lines.
Since late 2006 IBIS has been regularly used in spectropolarimetric mode and observations have included solar pores, quiet sun network and internetwork areas, and the disk passage of active regions NOAA 10941 and 10940. Measurements are primarily performed in the Fe I 630.2 and the Ca II 854.2 nm lines to provide information on both photospheric to chromospheric heights. We present results on the highly dynamical nature of both the vertical and horizontal components of quiet Sun magnetic fields. We also show the fine structure and height variation of the magnetic field in a large sunspot.

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