A Contribution to the Model of the Slowly Varying Component of the Sun Derived from Observations at 8.6 MM

Abstract

view Abstract Citations (4) References (3) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS A Contribution to the Model of the Slowly Varying Component of the Sun Derived from Observations at 8.6 MM Feix, G. Abstract Various authors have measured the degree of polarization of the slowly varying component of the Sun and have derived values of 20-30 percent at X = 3.2 cm, <10 percent at X = 7.5 cm, and <2 percent at X = 21 cm. We have found at X = 8.6 mm a degree of polarization of 2 percent originating from ex- tended plage areas. The observations were carried out by means of a pencil-beam antenna approximately 3 ~6 X 3 1 in size. Measured degree of polarization is a lower limit only because of the large beam width of the antenna which averages out left-circularly polarized and right-circularly polarized components. The data obtained are analyzed in accordance with the magneto-ionic theory; an electron temperature of 85000 K is found for layers below 10000 km Publication: The Astrophysical Journal Pub Date: August 1969 DOI: 10.1086/150122 Bibcode: 1969ApJ...157..903F full text sources ADS |