Astronomy and Astrophysics – Astronomy
Scientific paper
Oct 1993
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993ap%26ss.208..217m&link_type=abstract
Astrophysics and Space Science (ISSN 0004-640X), vol. 208, no. 2, p. 217-227
Astronomy and Astrophysics
Astronomy
1
Flare Stars, Solar Neighborhood, Stellar Luminosity, Stellar Physics, Ultraviolet Astronomy, Ultraviolet Spectra, Amplitudes, Computer Programs, Cycles, Stellar Flares
Scientific paper
Long-term changes in two flare stars, EV Lac and BY Dra, have been detected by Mavridis et al. These long cyclic periods have been registered in the B-band at their quiescent-state luminosity as well as at their flare activity. Those observational data of the two previously mentioned flare stars as well as another observational data of the flare star, UV Cet, at its flare activity were submitted to our computer program for periodicity detection excluding cyclic periods which have amplitudes less than tenth magnitude for great significance. Some of our results coincided with the long cyclic periods detected by Mavridis et al. while the remainder of our results have had no complete coincidence with those registered by Mavridis et al.
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