Yohkoh/SXT observations of a coronal mass ejection near the solar surface |
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| Authors: | N Gopalswamy MR Kundu Y Hanaoka S Enome JR Lemen M Akioka |
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| Institution: | aDepartment of Astronomy, University of MarylandCollege Park, MD 20742USA;bNobeyama Radio Observatory, MinamisakuNagano 384-13Japan;cLockheed Palo Alto Research LaboratoryPalo Alto, CA 94304USA;dHiraiso Solar Terrestrial Research Center, 3601 Isozaki, Hitachi-naka-shiIbaraki 311-12Japan |
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| Abstract: | We report the observations of a coronal mass ejection (CME) using the Soft X-ray Telescope on board the Yohkoh Mission. The CME had the familiar three part structure (frontal loop, prominence core and a cavity). The erupting prominence was observed by the Nobeyama radioheliograph. We were able to determine the mass of the CME (2.6 × 1014 g) from X-ray observations which seems to be at the lower end of the range of CME masses reported before from white light observations. This is the first time the mass of a CME has been determined from X-ray observations. The height of onset of the CME was 0.3R⊙. The CME moved much faster than the erupting prominence while its acceleration was smaller than that of the erupting prominence.J. Leonard Culhane |
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| Keywords: | PACS: 96 60 -j 96 60 Pb 96 60 Rd 96 60 Se |
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