2 papers
astro-ph.SR2020
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…
astro-ph.SR2018
Spectroscopic time-series analysis of R Canis Majoris
H. Lehmann, V. Tsymbal, F. Pertermann +3
R Canis Majoris is the prototype of a small group of Algol-type stars showing short orbital periods and low mass ratios. A previous detection of short-term oscillations in its ligh…