Strongly Blueshifted Phenomena Observed with {\it Hinode}/EIS in the 2006 December 13 Solar Flare
Astrophysics
2008-12-10 v1
Abstract
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.
Keywords
Cite
@article{arxiv.0805.4468,
title = {Strongly Blueshifted Phenomena Observed with {\it Hinode}/EIS in the 2006 December 13 Solar Flare},
author = {Ayumi Asai and Hirohisa Hara and Tetsuya Watanabe and Shinsuke Imada and Taro Sakao and Noriyuki Narukage and J. L. Culhane and G. A. Doschek},
journal= {arXiv preprint arXiv:0805.4468},
year = {2008}
}
Comments
18 pages, 1 table, 6 figures. ApJ, accepted