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Statistical Study of the Large-scale Structure of the Chromospheric Doppler Velocities from 2D-spectroscopy within the HeI 10830 Å line

Published online by Cambridge University Press:  14 March 2005

Eugene S. Kulagin  and
Vladimir V. Kouprianov
Eugene S. Kulagin
Affiliation:
Central (Pulkovo) Observatory of the Russian Academy of Sciences 196140, 65/1, Pulkovskoye ave., St. Petersburg, Russia; email: galkin@gao.spb.ru
Vladimir V. Kouprianov
Affiliation:
Central (Pulkovo) Observatory of the Russian Academy of Sciences 196140, 65/1, Pulkovskoye ave., St. Petersburg, Russia; email: galkin@gao.spb.ru
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Abstract

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The map of the large-scale chromospheric Doppler velocities ($VD$) on the solar disk, obtained from 2D-spectroscopy within the HeI 10830 Å line for June 4 2002, is presented. Velocity field structures larger than the supergranulation cells are studied. Statistical relations between $VD$ and 1) the intensity in the core of the HeI 10830 Å line and 2) the sign and strength of the longitudinal photospheric magnetic field are obtained and discussed.To search for other articles by the author(s) go to: http://adsabs.harvard.edu/abstract_service.html

Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 2004 , Issue IAUS223 , June 2004 , pp. 637 - 638
Copyright
© 2004 International Astronomical Union