AAS Meeting #194 - Chicago, Illinois, May/June 1999
Session 79. The Sun Close Up: Results from the TRACE Mission
Solar, Oral, Wednesday, June 2, 1999, 2:00-3:30pm, Continental Ballroom C

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[79.01] Dynamics of Transition Region Moss

T. E. Berger, B. De Pontieu, C. J. Schrijver, A. M. Title (Lockheed Martin Solar and Astrophysics Lab)

We examine the dynamics of solar transition region "moss", the 106~K EUV emission at the footpoint regions of 2--3~MK active region coronal loops. Comparisons of TRACE 171~Å\ movies with SVST (La Palma) Ca~II~K-line, H\alpha, and G-band movies are made. Local Correlation Tracking (LCT) flowmapping techniques are used to establish the photospheric flowfield in plage regions with and without associated moss. The relation of moss emission to chromospheric spicules or fibrils is examined in detail using H\alpha movies and dopplergrams. In addition, several microflare events occuring in plage regions are analyzed using TRACE and SVST movies. This research was supported by NASA contract NAS5-38099 (TRACE) and NASA SR&T grant NASW-98008.

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