CORONAL HOLES OF THE SUN

Dmitry DOCENKO
University of Latvia, Raina blwd 19, Riga, LV-1582, e-mail: sf60018@lanet.lv

Abstract

The Sun is the nearest star for us and because of this it is investigated more than others. Besides many features known for a long time as prominences, sunspots, solar flares etc., there are some more things that raise interest. One kind of such formations that have been found only after beginning of radio observations of the Sun is coronal holes. Coronal hole is the area in the outer solar atmosphere (corona) that have properties different from normal corona. It has lower temperature and density and therefore it radiates less. These 'holes' in solar radiation, that are especially evidently seen in radio diapazone, are investigated by scholars. Different groups have proposed various models of corona of quiet Sun and coronal holes.
My work is to test these models using simulations and to compare results with real observations.