Computer Science
Scientific paper
Oct 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002esasp.505..183h&link_type=abstract
In: SOLMAG 2002. Proceedings of the Magnetic Coupling of the Solar Atmosphere Euroconference and IAU Colloquium 188, 11 - 15 Jun
Computer Science
2
Sunspots, Solar Oscillations, Ultraviolet
Scientific paper
Oscillations in the sunspot transition region and corona are observed simultaneously with the Coronal Diagnostic Spectrometer - CDS on SOHO and the Transition Region And Coronal Explorer - TRACE. Observations of thirteen sunspots in 2001 and 2002 show that the amplitude in the relative integrated line intensity increases with increasing temperature, reaches a maximum for emission lines formed close to 1-2×105K, and decreases at higher temperatures. Part of the wave energy penetrates into the corona, channeled into small areas that appear to coincide with the endpoints of sunspot coronal loops. The observed power spectra show one dominating peak close to 6 mHz. To explore the nature of the waves we calculate upwardly propagating acoustic waves confined to a magnetic flux tube and compare the results with the observations.
Brynildsen Nils
Fredvik T.
Hansteen Viggo H.
Kjeldseth-Moe Olav
Maltby Per
No associations
LandOfFree
On the nature of the 3 minute oscillations above sunspots 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 On the nature of the 3 minute oscillations above sunspots, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and On the nature of the 3 minute oscillations above sunspots will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1422414