30 citations · 128 across the 12 of their papers we have counts for
12 papers
Spectrum of the secondary component and new orbital elements of the massive triple star Delta Ori A
A. Oplištilová, P. Mayer, P. Harmanec +13
Orionis is the closest massive multiple stellar system and one of the brightest members of the Orion OB association. The primary (Aa1) is a unique evolved O star. In this work,…
Towards a consistent model of the hot quadruple system HD 93206 = QZ Carinae - I. Observations and their initial analyses
P. Harmanec, P. Zasche, M. Brož +17
The hot nine-component system HD 93206, which contains a gravitationally bounded eclipsing Ac1+Ac2 binary (~d) and a spectroscopic Aa1+Aa2 (~d) binary can provi…
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…
The Three body system delta Circini
P. Mayer, P. Harmanec, H. Sana +1
Delta Cir is known as an O7.5 III eclipsing and spectroscopic binary with an eccentric orbit. Penny et al. discovered the presence of a third component in the IUE spectra. The ecli…
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…
New and revised parameters for several southern OB binaries
Pavel Mayer, Horst Drechsel, Andreas Irrgang
Using ESO FEROS archive spectra of several southern OB-type binaries, we derived periods for three SB2 spectroscopic binaries, HD 97166, HD 115455, and HD 123590, and two SB1 syste…
Revised physical elements of the astrophysically important O9.5+O9.5V eclipsing binary system Y Cyg
P. Harmanec, D. E. Holmgren, M. Wolf +11
Thanks to its long and rich observational history and rapid apsidal motion, the massive eclipsing binary Y Cyg represents one of the cornestones to critical tests of stellar evolut…
V2368 Oph: An eclipsing and double-lined spectroscopic binary used as a photometric comparison star for U Oph
P. Harmanec, H. Božić, P. Mayer +8
The A-type star HR 6412 = V2368 Oph was used by several investigators as a photometric comparison star for the known eclipsing binary U Oph but was found to be variable by three in…
The O-type eclipsing binary SZ Cam revisited
Pavel Mayer, Horst Drechsel, Jiří Kubát +1
We analyse new spectra of the multiple system SZ Cam because previous studies found different values of the primary radial velocity amplitude. The older solutions of light curves a…
A unified solution for the orbit and light-time effect in the V505 Sgr system
M. Broz, P. Mayer, T. Pribulla +3
The multiple system V505 Sagittarii is composed of at least three stars: a compact eclipsing pair and a distant component, which orbit is measured directly using speckle interferom…
Tomographic Separation of Composite Spectra. X. The Massive Close Binary HD 101131
D. R. Gies, L. R. Penny, P. Mayer +2
We present the first orbital elements for the massive close binary, HD 101131, one of the brightest objects in the young, open cluster, IC 2944. This system is a double-lined spect…