The 1564.6nm CN Line in Sunspots

Details The 1564.6nm CN Line in Sunspots The 1564.6nm CN Line in Sunspots

May 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005agusmsp11a..02p&link_type=abstract

American Geophysical Union, Spring Meeting 2005, abstract #SP11A-02

Physics

7524 Magnetic Fields, 7529 Photosphere

Scientific paper

The line strength of CN absorption has been observed to vary with the continuum intensity within sunspots, and the Doppler shift of the CN line at 1564.6nm has been shown to reveal fast Evershed flows in the penumbra. We examine several sunspots observed from 2002-2005 using intensity spectroscopy and spectropolarimetry to determine the line strength, plasma flow velocity, and the local magnetic field configuration as functions of position in these sunspots.

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