Active Region Transient Events Observed with TRACE

Details Active Region Transient Events Observed with TRACE Active Region Transient Events Observed with TRACE

Dec 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001apj...563l.173s&link_type=abstract

The Astrophysical Journal, Volume 563, Issue 2, pp. L173-L177.

Astronomy and Astrophysics

Astronomy

13

Sun: Activity, Sun: Corona

Scientific paper

Nearly all active region observations made by the Transition Region and Coronal Explorer (TRACE) contain seemingly spontaneous, short-lived brightenings in small-scale loops. In this paper, we present an analysis of these brightenings using high-cadence TRACE observations of Active Region 9506 on 2001 June 21 from 15:17:00 to 15:46:00 UT. During this time frame, several brightenings were observed over a neutral line in a region of emerging flux that had intensity signatures in both the 171 Å (logTe~6.0) and 1600 Å (logTe~4.0-5.0) channels. The events had a cross-sectional diameter of approximately 2" and a length of 25". We interpret these as reconnection events associated with flux emergence, possible EUV counterparts to active region transient brightenings.

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