Velocity fields in an irregular sunspot

Jurčák, J.; Sobotka, M.; Martínez-Pillet, V.
Bibliographical reference

Solar Magnetic Phenomena, Proceedings of the 3rd Summerschool and Workshop held at the Solar Observatory Kanzelhöhe, Kärnten, Austria, August 25 -- September 5, 2003. Edited by A. Hanslmeier, A. Veronig, and M. Messerotti. Astronomy and Astrophysics Space Science Library, vol. 320, Springer, Dordrecht, The Netherlands, 2005., p.227-230

Advertised on:
0
2005
Number of authors
3
IAC number of authors
1
Citations
9
Refereed citations
0
Description
Line-of-sight velocity fields in an irregular sunspot (NOAA 8990) have been determined from Stokes-I spectra of the line Fe I 630.15 nm, obtained with the La Palma Stokes Polarimeter at the Swedish Vacuum Solar Telescope on May 13, 2000. We show and discuss the resulting velocity maps and asymmetry of the Fe I line.