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| Paper: |
Doppler Shift Oscillations Observed with the EUV Imaging Spectrometer on Hinode |
| Volume: |
415, The Second Hinode Science Meeting: Beyond Discovery-Toward Understanding |
| Page: |
283 |
| Authors: |
Mariska, J.T. |
| Abstract: |
This contribution reports on the detection of Doppler-shift oscillations in an active region observed on 2007 August 22–23. The oscillations, which have a much lower amplitude than those observed with earlier instruments, have periods of 7 to 10 min. These observations include density-sensitive emission lines and oscillations are also present in the derived densities. EIS is capable of detecting coronal velocity fluctuations with amplitudes of less than 0.5 km s-1 with short integration times in strong coronal lines, potentially allowing access to a much richer range of coronal oscillatory phenomena than has been available with earlier instruments. |
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