Astronomy and Astrophysics – Astrophysics – Solar and Stellar Astrophysics
Scientific paper
2010-01-12
Solar Physics, 2010, Volume 265, Issue 1-2, pp. 5-17
Astronomy and Astrophysics
Astrophysics
Solar and Stellar Astrophysics
Accepted to appear in Solar Physics Topical Issue titled "Remote Sensing of the Inner Heliosphere". Manuscript has 14 pages, 5
Scientific paper
10.1007/s11207-010-9538-z
We present the application of novel diagnostics to the spectroscopic observation of a Coronal Mass Ejection (CME) on disk by the Extreme Ultraviolet Imaging Spectrometer (EIS) on the Hinode spacecraft. We apply a recently developed line profile asymmetry analysis to the spectroscopic observation of NOAA AR 10930 on 14-15 December 2006 to three raster observations before and during the eruption of a 1000km/s CME. We see the impact that the observer's line-of-sight and magnetic field geometry have on the diagnostics used. Further, and more importantly, we identify the on-disk signature of a high-speed outflow behind the CME in the dimming region arising as a result of the eruption. Supported by recent coronal observations of the STEREO spacecraft, we speculate about the momentum flux resulting from this outflow as a secondary momentum source to the CME. The results presented highlight the importance of spectroscopic measurements in relation to CME kinematics, and the need for full-disk synoptic spectroscopic observations of the coronal and chromospheric plasmas to capture the signature of such explosive energy release as a way of providing better constraints of CME propagation times to L1, or any other point of interest in the heliosphere.
de Pontieu Bart
Leamon Robert J.
McIntosh Scott W.
No associations
LandOfFree
The Impact of New EUV Diagnostics on CME-Related Kinematics does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with The Impact of New EUV Diagnostics on CME-Related Kinematics, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The Impact of New EUV Diagnostics on CME-Related Kinematics will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-524017