Statistics – Computation
Scientific paper
Aug 1986
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986ap%26ss.125..127g&link_type=abstract
Astrophysics and Space Science (ISSN 0004-640X), vol. 125, no. 1, Aug. 1986, p. 127-147.
Statistics
Computation
4
Atmospheric Diffusion, Flare Stars, Light Curve, Stellar Atmospheres, Stellar Flares, Chromosphere, Computational Astrophysics, Emission Spectra, Line Spectra, Resonance Lines
Scientific paper
The problem of the flare taking place on opposite sides of a star is considered. Such a screened flare, diffused through the star's atmosphere (chromosphere), may also be registered. The theoretical light curve for a diffused flare event is derived, which differs strongly from the usual flare light curves. The light curve of diffused flare is characterized first of all by its very slow rise of brightness. This result opens quite a new direction in the understanding of the nature of the so-called 'slow' flares observed often among the UV Cet-type stars, as well as flare stars in aggregates. All slow flares can be interpreted as quite ordinary flare stars which take place, however, on the opposite sides of the star. The results of the interpretation of some slow flare events of YY Gem and three flare stars in Orion are presented. An attempt is made to determine the actual amplitudes of screened flares taking place on the opposite sides of a star.
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