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Deflection of High-speed Solar Wind Streams from the Radial Direction Caused by Interaction with Transients in the Solar Coronaтезисы доклада
- Авторы: Shugay Yu, Veselovsky I., Slemzin V., Rodkin D.
- Сборник: First VarSITI General Symposium
- Тезисы
- Год издания: 2016
- Место издания: VarSITI Albena
- Первая страница: 11
- Последняя страница: 11
- Аннотация: Analysis of interaction between different coronal structures of solar wind (SW) sources in the solar corona is important for improving methods of forecasting for all types of SW streams. Several cases of considerable discrepancy between the forecasted and observed at 1 AU (spacecraft ACE) positions of recurrent SW streams in the 24th solar cycle were analyzed. Such discrepancy can be detected in profile (in magnitude of the SW speed) and in the arrival time of the SW stream. Possible reasons for this discrepancy related to the position and magnetic configuration of the sources of high-speed and transient SW streams in the solar corona were considered. It was found that deflection of high-speed SW streams produced by high-latitude coronal holes (CHs) aside from the ecliptic plane could be caused by interaction with transient streams originated in active regions located between CH and the solar equator. The arrival of high-speed SW stream up to two days earlier the forecast may be associated with the SW stream deflection to the West from the radial direction caused by interaction with the transients whose magnetic field lines adjoining to the CH are parallel to the lines of highspeed SW stream from the CH.
- Добавил в систему: Шугай Юлия Сергеевна