On the time coincidence between \boldmath{Hα }-filament eruptions and soft X-ray emissions

Details On the time coincidence between \boldmath{Hα }-filament eruptions and soft X-ray emissions On the time coincidence between \boldmath{Hα }-filament eruptions and soft X-ray emissions

Dec 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003agufmsh22b..05s&link_type=abstract

American Geophysical Union, Fall Meeting 2003, abstract #SH22B-05

Physics

7513 Coronal Mass Ejections, 7519 Flares, 7531 Prominence Eruptions, 7594 Instruments And Techniques

Scientific paper

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 Hα -data. We report on the result of applying this technique to a sequence of 1-min Hα -images from the Kanzelhöhe Solar Observatory. We chose Hα -data for our initial application because many solar eruptive phenomena have observable signatures in chromospheric dynamics and long periods of Hα -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 Hα -solar disk. The Hα -dynamics are compared with variations in the integrated soft X-ray flux detected by the GOES 8 satellite.
Work supported by ONR, NSF ATM 0205157, and ATM 9903515.

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