Physics
Scientific paper
Dec 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002esasp.506..907k&link_type=abstract
In: Solar variability: from core to outer frontiers. The 10th European Solar Physics Meeting, 9 - 14 September 2002, Prague, Cze
Physics
Differential Velocity, Magnetic Flux
Scientific paper
In this communication we consider the modulationless method for measuring the magnetic field strength and the differential line-of-sight velocity, based on using a diffraction spectrograph and multichannel CCD-photodetectors. The method is currently under development at the ISTP. It becomes possible to measure the longitudinal magnetic field strength and the differential line-of-sight velocity in a single exposure. This can be attractive when reducing the influence of atmospheric instabilities on the result of magnetic field measurement using CCD arrays. The variable optical system, which we are using, permits us to make magnetic field measurements in the lambda-meter mode, which alleviates significantly the procedure of calibration of observational data. The results of the first measurements performed in the modulationless mode are presented.
Khlystova A. I.
Kobanov Nikolai I.
Makarchik D. V.
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