60 citations · 223 across the 25 of their papers we have counts for
25 papers
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…
A comprehensive study of the eclipsing binaries V1241 Tau and GQ Dra
B. Ulas, K. Gazeas, A. Liakos +5
We present new photometric and spectroscopic observations and analyses for the eclipsing binary systems V1241 Tau and GQ Dra. Our photometric light and radial velocity curves analy…
A study of Variability of the Marginal Am star HD 176843 observed in the Kepler field
C. Ulusoy, I. Stateva, B. Ulaş +4
We present results of a study of the variability of the marginal Am star HD\,176843 observed in the {\it Kepler} field. {\it Kepler} photometry and ground-based spectroscopy are us…
Asteroseismology of the {\it Kepler} target KIC\,9204718
C. Ulusoy, I. Stateva, I. Kh. Iliev +2
The high precision data obtained by the {\it Kepler} satellite allows us to detect hybrid type pulsator candidates more accurately than the data obtained by ground-based observatio…
The first Delta a observations of three globular clusters
E. Paunzen, I. Kh. Iliev, O. I. Pintado +6
Globular clusters are main astrophysical laboratories to test and modify evolutionary models. Thought to be rather homogeneous in their local elemental Distribution of members, res…
Investigating the possible connection between lambda Bootis stars and intermediate Population II type stars
E. Paunzen, I. Kh. Iliev, L. Fossati +2
The lambda Bootis (LB) stars are located at the upper main sequence of the H-R diagram and exhibit a peculiar abundance pattern. The light elements (C, N, O, and S) present solar a…