Physics
Scientific paper
May 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005agusmsh11c..03d&link_type=abstract
American Geophysical Union, Spring Meeting 2005, abstract #SH11C-03
Physics
7507 Chromosphere, 7509 Corona, 7524 Magnetic Fields, 7529 Photosphere, 7546 Transition Region
Scientific paper
There are now many observations of waves with periods around 5 minutes in the outer atmosphere of the Sun. We provide an observational overview of 5 minute periodicity in chromospheric spicules in active region plage, upper transition region moss and the low legs of coronal loops. Using a numerical model, we show that all of these phenomena are connected: normally evanescent photospheric oscillations can propagate into the low atmosphere as long as they are guided along magnetic field lines that are inclined away from the vertical. The leaked photospheric oscillations develop into shocks and lead to periodic upward chromospheric flows, which we have identified as active region spicules. These shocks continue upwards and enter into the corona. We suggest that TRACE observations of propagating acoustic waves in the corona are shocked and tunneled photospheric oscillations. Using SOHO/MDI, TRACE and Imaging Vector Magnetograph (Hawaii) data we explore how these coronal waves can be exploited to determine the connectivity between photosphere and corona,and thus allow seismology of the lower solar atmosphere.
de Moortel Ineke
de Pontieu Bart
Erdelyi Robert
Metcalf Thomas
No associations
LandOfFree
Tracing Coronal Waves Back to the Photosphere 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 Tracing Coronal Waves Back to the Photosphere, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tracing Coronal Waves Back to the Photosphere will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1692502