15 citations · 40 across the 6 of their papers we have counts for
6 papers
Dynamical parallax, physical parameters and evolutionary status of the components of the bright eclipsing binary α Draconis
K. Pavlovski, C. A. Hummel, A. Tkachenko +13
Altough both components of the bright eclipsing binary Dra having been resolved using long baseline interferometry and the secondary component shown to contribute some 15\% of…
Spectroscopic long-term monitoring of RZ Cas -- Part I: Basic stellar and system parameters
H. Lehmann, A. Dervisoglu, D. E. Mkrtichian +3
RZ Cas is a short-period Algol-type system showing episodes of mass transfer and Delta Sct-like oscillations of its mass-gaining primary component. We analyse high-resolution spect…
The dynamical mass and evolutionary status of the type-II Cepheid in the eclipsing binary system OGLE-LMC-T2CEP-211 with a double-ring disk
Bogumił Pilecki, Ahmet Dervişoğlu, Wolfgang Gieren +5
We present the analysis of a peculiar W~Virginis (pWVir) type-II Cepheid, OGLE-LMC-T2CEP-211 (), in a double-lined binary system (), which shed l…
Carbon deficiencies in the primaries of some classical Algols
C. Ibanoglu, A. Dervisoglu, O. Cakirli +2
The equivalent widths of C II 4267 Åline were measured for the mass-gaining primary stars of the 18 Algol-type binary systems. The comparison of the EWs of the gainers with tho…
V1898 Cygni: An interacting eclipsing binary in the vicinity of North America nebula
A. Dervisoglu, Ö. Çakırlı, C. Ibanoglu +1
We present spectroscopic observations of the double-lined early type eclipsing binary V1898\,Cyg. The radial velocities were obtained by means of the cross-correlation technique. A…
The Absolute Parameters for NSVS 11868841 and the Oversized Stars in the Low-Mass Eclipsing Binaries
Ö. Çakırlı, C. Ibanoğlu, A. Dervişoğlu
Spectroscopic observations of the low-mass eclipsing binary NSVS 11868841 have been obtained and the radial velocities were derived for both components. The masses and radii determ…