30 citations · 60 across the 3 of their papers we have counts for
4 papers
Analysis of combined radial velocities and activity of BD+20 1790: evidence supporting the existence of a planetary companion
M. Hernán-Obispo, M. Tuomi, M. C. Gálvez-Ortiz +17
This paper presents the simultaneous Bayesian analysis of the radial velocity and activity indices for the K5Ve active star BD+20 1790, that was proposed to host a close-in massive…
Discovery of the first Super-Lithium rich Beat Cepheid: V371 Per
V. V. Kovtyukh, N. I. Gorlova, M. Hillen
Four high-resolution spectra of the double-mode Cepheid V371 Per, obtained for the first time, showed the presence of the abnormally strong Li I 6707.76 A line. Our analysis of the…
Accurate luminosities from the oxygen 7771-4 A triplet and the fundamental parameters of F-G supergiants
V. V. Kovtyukh, N. Gorlova, S. I. Belik
The oxygen 7771-4 A triplet is a good indicator of luminosity in A-G supergiants. However, its strength also depends on other atmospheric parameters. In this study, we present the…
Line profile variations in classical Cepheids. Evidence for non-radial pulsations?
V. V. Kovtyukh, S. M. Andrievsky, R. E. Luck +1
We have investigated line profiles in a large sample of Cepheid spectra, and found four stars that show unusual (for Cepheids) line profile structure (bumps or/and asymmetries). Th…