194 citations · 294 across the 7 of their papers we have counts for
7 papers
Improved model of the triple system V746 Cas that has a bipolar magnetic field associated with the tertiary
P. Harmanec, M. Brož, P. Mayer +9
V746 Cas is known to be a triple system composed of a close binary with an alternatively reported period of either 25.4d or 27.8d and a third component in a 62000d orbit. The objec…
Physical properties of seven binary and higher-order multiple OB systems
Pavel Mayer, Petr Harmanec, Rolf Chini +7
Analyses of multi-epoch, high-resolution (~ 50000) optical spectra of seven early-type systems provided various important new insights with respect to their multiplicity. First det…
HD 152246 - a new high-mass triple system and its basic properties
A. Nasseri, R. Chini, P. Harmanec +6
Analyses of multi-epoch, high-resolution (R ~ 50.000) optical spectra of the O-type star HD 152246 (O9 IV according to the most recent classification), complemented by a limited nu…
Unique sextuple system: 65 Ursae Majoris
P. Zasche, R. Uhlář, M. Šlechta +4
Context. 65 UMa belongs to rather small group of stellar systems of higher multiplicity, whose inner and outer orbits are well-known. Methods: Photometric, spectroscopic, and inter…
Calcium Emission in Interacting Binary Be Stars
Pavel Koubský, Lenka Kotková, Viktor Votruba +7
Polidan (1976) suggested that Be stars showing the CaII IR triplet in emission are interacting binaries. With the advent of the Gaia satellite, which will host a spectrometer to ob…
Properties and nature of Be stars: 29. Orbital and long-term spectral variations of γ Cassiopeiæ
J. Nemravová, P. Harmanec, P. Koubský +6
A detailed analysis of more than 800 electronic high-resolution spectra of gamma Cas, which were obtained during a time interval of over 6000 days (16.84 yrs) at several observator…
Properties and nature of Be stars: 27. Orbital and recent long-term variations of the Pleiades Be star Pleione = BU Tauri
J. Nemravová, P. Harmanec, J. Kubát +8
Radial-velocity variations of the H-alpha emission measured on the steep wings of the H-alpha line, prewhitened for the long-time changes, vary periodically with a period of (218.0…