Astronomy and Astrophysics – Astrophysics
Scientific paper
May 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003a%26a...403..725b&link_type=abstract
Astronomy and Astrophysics, v.403, p.725-730 (2003)
Astronomy and Astrophysics
Astrophysics
8
Sun: Chromosphere, Sun: Corona, Sun: Transition Region, Sun: Uv Radiation
Scientific paper
We have studied SUMER and CDS time series of spectra and images of quiet-Sun regions at the solar disc centre. The data contain ultraviolet emission lines sampling temperatures of the chromosphere, transition region and corona. We find a high correlation between average net Doppler shifts and relative brightness variabilities of the studied lines (correlation coefficient of 0.92), suggesting a connection between the two quantities. The anti-correlation between differential emission measures and relative brightness variabilities is weaker (correlation coefficient of -0.78). We discuss the observed relationships on the basis of differential emission measures and linear wave calculations.
Brkovic Alen
Peter Hardi
Solanki Sami K.
No associations
LandOfFree
Variability of EUV-spectra from the quiet upper solar atmosphere: Intensity and Doppler shift 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 Variability of EUV-spectra from the quiet upper solar atmosphere: Intensity and Doppler shift, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Variability of EUV-spectra from the quiet upper solar atmosphere: Intensity and Doppler shift will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1366579