Наукова електронна бібліотека
періодичних видань НАН України
періодичних видань НАН України
The energy sources of CME acceleration
Репозиторій DSpace/Manakin
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The energy sources of CME acceleration
Посилання:
The energy sources of CME acceleration / H. Allawi, S. Pohjolainen // Advances in Astronomy and Space Physics. — 2012. — Т. 2., вип. 2. — С. 157-160. — Бібліогр.: 14 назв. — англ.
Підтримка:
The data used in this work were obtained from the web archives of the LASCO CME Catalog (generated and maintained at the CDAW Data Center by NASA and The Catholic University of America in cooperation with the Naval Research Laboratory) and the Wind WAVES instrument website.
Дата:
2012
Переглядів:
638
Завантажень:
422
Анотація:
We investigate the possibility that during the fast acceleration phase of a coronal mass ejection (CME), a freely propagating shock wave could be launched. We test this hypothesis by calculating the speeds of blast waves by using the Taylor-Sedov equation in changing density solar atmosphere, and compare these speeds with the radio type II burst speeds during the CME event on 17 February 2000. The matching speeds and the realistic value of the blast wave energy, 10²⁴ J, lead us to suggest that the CME acceleration phase may involve shocks separating from the initial CME driver.
