Astronomy and Astrophysics – Astrophysics – Solar and Stellar Astrophysics
Scientific paper
2010-04-28
Astronomy and Astrophysics
Astrophysics
Solar and Stellar Astrophysics
Accepted for publication in ApJ
Scientific paper
We have used the Extreme Ultraviolet Imaging Spectrometer (EIS) on the Hinode spacecraft to observe large areas of outflow near an active region. These outflows are seen to persist for at least 6 days. The emission line profiles suggest that the outflow region is composed of multiple outflowing components, Doppler-shifted with respect to each other. We have modeled this scenario by imposing a double-Gaussian fit to the line profiles. These fits represent the profile markedly better than a single Gaussian fit for Fe XII and XIII emission lines. For the fastest outflowing components, we find velocities as high as 200 km/s. However, there remains a correlation between the fitted line velocities and widths, suggesting that the outflows are not fully resolved by the double-Gaussian fit and that the outflow may be comprised of further components.
Bryans Paul
Doschek George A.
Young Peter R.
No associations
LandOfFree
Multiple Component Outflows in an Active Region Observed with the EUV Imaging Spectrometer on Hinode 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 Multiple Component Outflows in an Active Region Observed with the EUV Imaging Spectrometer on Hinode, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Multiple Component Outflows in an Active Region Observed with the EUV Imaging Spectrometer on Hinode will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-69267