Statistics
Scientific paper
May 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001agusm..sh31d02d&link_type=abstract
American Geophysical Union, Spring Meeting 2001, abstract #SH31D-02
Statistics
7507 Chromosphere, 7509 Corona, 7524 Magnetic Fields, 7529 Photosphere, 7546 Transition Region
Scientific paper
We present high-resolution observations of a quiet sun region, made on 23-May-1998 using the Swedish Vacuum Solar Telescope (SVST) and the Transition Region and Coronal Explorer (TRACE). We study the statistics and the effects on upper atmospheric layers of emergence and cancellation of magnetic elements on scales of 0.5" using Fe I 6302 magnetograms, co-temporal G-band, Ca II K-line and H-alpha filtergrams, and TRACE 1550, 1600, 1700, 171 and 195 Angstrom images. From our 3 hour long dataset, obtained under excellent seeing conditions, we calculate maps of the photospheric flowfield, and study its relationship to the dynamics of magnetic elements, the chromosphere (spicules), and the TR/corona. For example, our study reveals several cases in which flux concentrations that have recently emerged in the internetwork, are apparently rapidly (within 10 minutes) dispersed after emergence. Co-aligned G-band images show that the magnetic flux, initially quite concentrated (0.5"), seems to get spread out (to several arcseconds) and/or shredded due to granular action or convective flow, until it falls below the noise levels in our magnetograms and becomes undetectable. These magnetic flux concentrations do not seem to get cancelled by opposite polarity, and typically do not form G-band bright points or Ca II K-line brightenings. A significant fraction of the flux that we see emerge undergoes this process.
No associations
LandOfFree
High Resolution Observations of Quiet Sun Magnetic Elements 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 High Resolution Observations of Quiet Sun Magnetic Elements, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High Resolution Observations of Quiet Sun Magnetic Elements will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1274694