Astronomy and Astrophysics – Astrophysics
Scientific paper
Oct 1976
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976pazh....2..494k&link_type=abstract
Pis'ma v Astronomicheskii Zhurnal, vol. 2, Oct. 1976, p. 494-498. In Russian.
Astronomy and Astrophysics
Astrophysics
12
Light Curve, Spectral Energy Distribution, Stellar Luminosity, Stellar Spectrophotometry, T Tauri Stars, Ubv Spectra, Astrophysics, Flares, Stellar Mass Ejection, Stellar Spectra
Scientific paper
Results are reported for UBVR-beta photoelectric photometry of T Tauri using a 48-cm reflector. Examination of the light curves in all five colors reveals that a flare was detected on one night. It is shown that the flare was a damped cyclic event with a cycle duration of approximately 20 min, that the U amplitude of the flare was 1.30 magnitudes, and that the brightness variation in all five colors was synchronous to within 30 sec until the U minimum. The total energy released during the flare is estimated to be around 10 to the 35th power or 10 to the 36th power erg/sec, assuming a distance of 170 pc. It is noted that this event was much more powerful than those associated with flares of UV Ceti stars.
Kiliachkov N. N.
Shevchenko Sergey. V.
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