Solar-activity cycle from observations of magnetic characteristics of prominences
| Autor: | I. V. Mironova, A. R. Osokin, E. Z. Suyunova, V. V. Popov, I. S. Kim, I. V. Alekseeva |
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| Rok vydání: | 2016 |
| Předmět: |
Physics
010504 meteorology & atmospheric sciences Field (physics) business.industry Polarimetry Astrophysics 01 natural sciences Solar prominence Magnetic field law.invention Filter (large eddy simulation) Full width at half maximum Geophysics Optics Space and Planetary Science law 0103 physical sciences business 010303 astronomy & astrophysics Coronagraph 0105 earth and related environmental sciences |
| Zdroj: | Geomagnetism and Aeronomy. 56:993-997 |
| ISSN: | 1555-645X 0016-7932 |
| DOI: | 10.1134/s0016793216080119 |
| Popis: | According to measurements of the magnetic fields in quiescent prominences carried out by different teams in 1964–1989, the maximum values of the field correspond to the minimum values of the Wolf numbers averaged through the corresponding periods of observations. It has been shown that the synoptic noneclipse 2D linear polarimetry of quiescent Hα-prominences can be actually implemented; this method is based on the use of a coronagraph with a primary-optics diameter equal to or larger than 100 mm, a narrow-band filter with FWHM ≤ 0.4 nm, a standard linear polariod, and a high-precision linear polarimetric technique. |
| Databáze: | OpenAIRE |
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