The energy sources of CME acceleration
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 co...
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| Published in: | Advances in Astronomy and Space Physics |
|---|---|
| Date: | 2012 |
| Main Authors: | , |
| Format: | Article |
| Language: | English |
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Головна астрономічна обсерваторія НАН України
2012
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| Online Access: | https://nasplib.isofts.kiev.ua/handle/123456789/119190 |
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| Journal Title: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Cite this: | 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. |
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Digital Library of Periodicals of National Academy of Sciences of Ukraine| _version_ | 1862714097499373568 |
|---|---|
| author | Allawi, H. Pohjolainen, S. |
| author_facet | Allawi, H. Pohjolainen, S. |
| citation_txt | 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. |
| collection | DSpace DC |
| container_title | Advances in Astronomy and Space Physics |
| description | 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.
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| first_indexed | 2025-12-07T17:49:25Z |
| format | Article |
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| id | nasplib_isofts_kiev_ua-123456789-119190 |
| institution | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| issn | 2227-1481 |
| language | English |
| last_indexed | 2025-12-07T17:49:25Z |
| publishDate | 2012 |
| publisher | Головна астрономічна обсерваторія НАН України |
| record_format | dspace |
| spelling | Allawi, H. Pohjolainen, S. 2017-06-04T19:39:25Z 2017-06-04T19:39:25Z 2012 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. 2227-1481 https://nasplib.isofts.kiev.ua/handle/123456789/119190 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. 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. en Головна астрономічна обсерваторія НАН України Advances in Astronomy and Space Physics The energy sources of CME acceleration Article published earlier |
| spellingShingle | The energy sources of CME acceleration Allawi, H. Pohjolainen, S. |
| title | The energy sources of CME acceleration |
| title_full | The energy sources of CME acceleration |
| title_fullStr | The energy sources of CME acceleration |
| title_full_unstemmed | The energy sources of CME acceleration |
| title_short | The energy sources of CME acceleration |
| title_sort | energy sources of cme acceleration |
| url | https://nasplib.isofts.kiev.ua/handle/123456789/119190 |
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