16 citations · 16 across the 2 of their papers we have counts for
3 papers
astro-ph.SR2023★ 4 cited
Mass outflow from the symbiotic binary RS Oph during its 2021 outburst
N. A. Tomov, M. T. Tomova, K. A. Stoyanov +7
RS Oph is a symbiotic recurrent nova containing a massive white dwarf with heavy mass loss during activity. In August 2021, it underwent its seventh optical eruption since the end…
astro-ph.SR2014★ 16 cited
Orbital parameters of the high-mass X-ray binary 4U 2206+54
K. A. Stoyanov, R. K. Zamanov, G. Y. Latev +2
We present new radial velocities of the high-mass X-ray binary star 4U 2206+54 based on optical spectra obtained with the Coude spectrograph at the 2m RCC telescope at the Rozhen N…
astro-ph.SR2014
Emission line variability in the spectrum of V417 Centauri
K. A. Stoyanov, R. K. Zamanov, M. F. Bode +4
We report high resolution spectral observations of the yellow symbiotic star V417 Cen obtained in 2004. We find that the equivalent widths of the emission lines decreased, while th…