3 papers
astro-ph.SR2026
Is Mira B a low mass white dwarf?
R. K. Zamanov, V. Irincheva, B. Spassov +8
We report photometric observations in Johnson B and V bands of the short term variability (flickering) of Mira (omicron Ceti). The observations were performed during 7 nights in th…
astro-ph.SR2025
Observational signs of limited flare area variation and peak flare temperatures estimations in main-sequence flaring stars
K. Bicz, R. Falewicz, P. Heinzel +8
In the study of stellar flares, traditional method of calculating total energy emitted in the continuum assumes the emission originating from a narrow chromospheric condensation re…
astro-ph.SR2025
Red giant component of the recurrent nova T Coronae Borealis
R. K. Zamanov, D. Marchev, V. Marchev +5
We performed simultaneous V band photometry and spectroscopic observations of the recurrent nova T CrB and estimate the V band magnitude of the red giant. We find for the red giant…