AAS Meeting #194 - Chicago, Illinois, May/June 1999
Session 78. TRACE and Coronal Heating
Solar, Display, Wednesday, June 2, 1999, 10:00am-6:30pm, Southeast Exhibit Hall

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[78.08] Chromospheric Sources of Coronal Rays

H. Zirin, R. Cameron (Caltech)

TRACE images in the 171A FeIX line show coronal rays or small streamers from network elements. We obtained chromospheric images in center and wing of H\alpha at BBSO to investigate the relation of these to spicule activity at the base, as well as to brightenings and other changes in the underlying chromosphere. There is a close match of the brightest H\alpha centerline elements to coronal rays; other network elements are seen. Spicule activity does not appear to play a big role. The coronal changes are fairly slow. We shall also present new data on spicule lifetimes.

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