HR: 14:40h
AN: SH22B-05    [PDF]
TI: On the time coincidence between \boldmath{$\mbox{H}_\alpha$}-filament eruptions and soft X-ray emissions
AU: * Schuck, P W
EM: schuck@ppdmail.nrl.navy.mil
AF: United States Naval Research Laboratory, 4555 Overlook Ave., SW, Washington, DC 20375
AU: Chen, J
EM: chen@ppdmail.nrl.navy.mil
AF: United States Naval Research Laboratory, 4555 Overlook Ave., SW, Washington, DC 20375
AU: Schwartz, I
EM: schwartz@nls4.nrl.navy.mil
AF: United States Naval Research Laboratory, 4555 Overlook Ave., SW, Washington, DC 20375
AU: Yurchyshyn, V
EM: vayur@bbso.njit.edu
AF: Big Bear Solar Observatory, 40386 North Shore Lane, Big Bear City, CA 92314-9672
AB: The interrelationships among coronal mass ejections, solar flares, and filament eruptions have been a long standing issue in solar physics. In particular, timing and spatial relationships among such eruptive phenomena play a key role in understanding any possible causality among them. Presently, observational ambiguities often result from insufficient temporal and spatial resolution. However, we expect that observational capabilities will continue to improve, and in the near future, produce large volumes of solar data with high time-cadence and spatial resolution. We present a technique for quantitatively characterizing dynamics in $\mbox{H}_\alpha$-data. We report on the result of applying this technique to a sequence of 1-min $\mbox{H}_\alpha$-images from the Kanzelh\"ohe Solar Observatory. We chose $\mbox{H}_\alpha$-data for our initial application because many solar eruptive phenomena have observable signatures in chromospheric dynamics and long periods of $\mbox{H}_\alpha$-observations are readily available. The data set contains quiescent filaments and a filament eruption accompanied by a two-ribbon flare. The analysis reveals the spatially and temporally correlated phenomena on the $\mbox{H}_\alpha$-solar disk. The $\mbox{H}_\alpha$-dynamics are compared with variations in the integrated soft X-ray flux detected by the GOES 8 satellite.\\ \par\noindent Work supported by ONR, NSF ATM 0205157, and ATM 9903515.
DE: 7513 Coronal mass ejections
DE: 7519 Flares
DE: 7531 Prominence eruptions
DE: 7594 Instruments and techniques
SC: SPA - Solar and Heliospheric Physics [SH]
MN: 2003 Fall Meeting