Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 1993
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993aas...183.0705b&link_type=abstract
American Astronomical Society, 183rd AAS Meeting, #07.05; Bulletin of the American Astronomical Society, Vol. 25, p.1300
Astronomy and Astrophysics
Astronomy
Scientific paper
Recent studies indicate that CaII K emission during stellar flares produces a light curve analogous to soft X-ray emission during the gradual phase of solar flares. This has led to speculation that CaII K can be used as an optical proxy for X-ray emission in stellar flares. Despite the copious amount of work using CaII K for solar atmospheric and helioseismology studies, it is still unknown whether optical lines such as CaII K can consistently be used as proxies for X-ray emission in solar flares. Previous studies of CaII K during solar flares are either unrelated to the question of proxies, have inadequate temporal resolution, or are limited in the number of flares observed. I present a preview of a study involving over 30 solar flares in which flux calibrated CaII K, Hα , soft and hard X-ray emission are compared.
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