DISTRIBUTION OF BRIGHTNESS TEMPERATURES IN THE POLAR CORONAL HOLE AT DISTANCES FROM THE SUN'S LIMB TO TWO SOLAR RADII ACCORDING TO OBSERVATIONS IN CENTIMETER WAVELENGTHS ON THE RATAN-600
РАСПРЕДЕЛЕНИЕ ЯРКОСТНЫХ ТЕМПЕРАТУР В ПОЛЯРНОЙ КОРОНАЛЬНОЙ ДЫРЕ НА РАССТОЯНИЯХ ОТ ЛИМБА СОЛНЦА ДО ДВУХ РАДИУСОВ СОЛНЦА ПО ДАННЫМ НАБЛЮДЕНИЙ В САНТИМЕТРОВОМ ДИАПАЗОНЕ ДЛИН ВОЛН НА РАТАН-600

O.A. Golubchina, St. Petersburg Branch of Special Astrophysical Observatory, St. Petersburg, Russia
2020 Proceedings of the 24th All-Russia Conference on Solar and Solar-Terrestrial Physics   unpublished
This article presents an overview of the main results of the study of the polar coronal hole (CH) over the North pole of the Sun based on observations of the solar eclipse on March 29, 2006 . The observations were made on the RATAN-600 radio telescope in a wide cm-range of wavelengths: 1. 03, 1.38, 2.7, 6.2, 13.0, 30.7 cm. The RATAN-600 is the radio telescope of the Russian Academy of Sciences. The results obtained are discussed: the distribution of the brightness temperatures of the polar
more » ... s of the polar coronal hole above the North pole of the Sun at distances of approximately (1.005-2.0) Rs (Rs -the radius of the Sun); the identity of the temperature properties of the polar CH and low-latitude coronal holes (CHs) on the Sun during the period of minimal solar activity. The results were analyzed using observational and theoretical data published by various authors. We discuss the enhance of the microwave radiation of the polar coronal hole registered on short waves from observations of the total solar eclipse on March 29, 2006 using the RATAN-600 telescope. Comparison of the obtained brightness temperatures of the polar CH with the brightness temperatures of low-latitude CHs observed earlier at close wavelengths indicates the identity of the temperature properties of the CHs regardless of their location on the Sun and of their organization during the period of minimum solar activity
doi:10.31725/0552-5829-2020-65-68 fatcat:pj3indxlsfcc5nao64xshhbtzq