Strongly Blueshifted Phenomena Observed with {\it Hinode}/EIS in the 2006 December 13 Solar Flare

Date
Authors
Asai, Ayumi
Hara, Hirohisa
Watanabe, Tetsuya
Imada, Shinsuke
Sakao, Taro
Narukage, Noriyuki
Culhane, J. L.
Doschek, G. A.
Journal Title
Journal ISSN
Volume Title
Publisher
Abstract
Description
We present a detailed examination of strongly blueshifted emission lines observed with the EUV Imaging Spectrometer on board the {\it Hinode} satellite. We found two kinds of blueshifted phenomenon associated with the X3.4 flare that occurred on 2006 December 13. One was related to a plasmoid ejection seen in soft X-rays. It was very bright in all the lines used for the observations. The other was associated with the faint arc-shaped ejection seen in soft X-rays. The soft X-ray ejection is thought to be an MHD fast-mode shock wave. This is therefore the first spectroscopic observation of an MHD fast-mode shock wave associated with a flare.
Comment: 18 pages, 1 table, 6 figures. ApJ, accepted
Keywords
Astrophysics
Citation
Collections