The Connection of Solar Wind Parameters with Radio and UV Emission from Coronal Holes
| Autor: | Irina Myagkova, D. V. Prosovetsky |
|---|---|
| Rok vydání: | 2011 |
| Předmět: |
Physics
Spacecraft business.industry Astrophysics::High Energy Astrophysical Phenomena Coronal hole Flux Astrophysics Corona Connection (mathematics) Solar wind Orbit Acceleration Physics::Space Physics Astrophysics::Solar and Stellar Astrophysics Astrophysics::Earth and Planetary Astrophysics business |
| Zdroj: | Energy Storage and Release through the Solar Activity Cycle ISBN: 9781461444022 |
| DOI: | 10.1007/978-1-4614-4403-9_15 |
| Popis: | This paper presents the results of a comparison between observations of coronal holes in UV (SOHO EIT) and radio emission (17, 5.7 GHz, 327 and 150.9 MHz, from NoRH, SSRT and Nancay radioheliographs), and solar wind parameters, from ACE spacecraft data over the period 12 March – 31 May 2007. The increase in the solar wind velocity up to ∼ 600 km s−1 was found to correlate with a decrease in the UV flux in the central parts of the solar disk. A connection between the parameters of the radio emission from three different layers of the solar atmosphere and the solar wind velocity near the Earth’s orbit was discovered. Such a connection is suggestive of a common mechanism of solar wind acceleration from chromospheric heights to the upper corona. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|