345 citations · 1.9k across the 40 of their papers we have counts for
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High-mass eclipsing binaries: a testbed for models of interior structure and evolution -- Accurate fundamental properties and surface chemical composition for V1034 Sco, GL Car, V573 Car and V346 Cen
K. Pavlovski, J. Southworth, A. Tkachenko +2
The surface chemical compositions of stars are affected by physical processes which bring the products of thermonuclear burning to the surface. Despite their potential in understan…
KIC 7955301: a hierarchical triple system with eclipse timing variations and an oscillating red giant
P. Gaulme, T. Borkovits, T. Appourchaux +13
KIC 7955301 is a hierarchical triple system with eclipse timing and depth variations discovered by the Kepler mission. It is composed of a non-eclipsing primary star at the bottom…
Pushing Least-Squares Deconvolution to the next level: application to binary stars
A. Tkachenko, V. Tsymbal, Zvyagintsev +3
Eclipsing, spectroscopic double-lined (SB2) binaries remain to be the prime source of precise and accurate fundamental properties of stars. Furthermore, high-cadence spectroscopic…
The CubeSpec space mission: Asteroseismology of massive stars from time-series optical spectroscopy
D. M. Bowman, B. Vandenbussche, H. Sana +8
The ESA/KU Leuven CubeSpec mission is specifically designed to provide low-cost space-based high-resolution optical spectroscopy. Here we highlight the science requirements and cap…
Detection of period-spacing patterns due to the gravity modes of rotating dwarfs in the TESS southern continuous viewing zone
S. Garcia, T. Van Reeth, J. De Ridder +3
Context: the theory of stellar evolution presents shortcomings when confronted with asteroseismic probes of interior physical properties. The differences between observations and t…
The CubeSpec space mission. I. Asteroseismology of massive stars from time series optical spectroscopy: science requirements and target list prioritisation
D. M. Bowman, B. Vandenbussche, H. Sana +7
Context. There is currently a niche for providing high-cadence, high resolution, time-series optical spectroscopy from space, which can be filled by using a low-cost cubesat missio…
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…
Fundamental parameters and abundance analysis of the components in the SB2 system HD 60803
T. Ryabchikova, S. Zvyagintsev, A. Tkachenko +3
We performed a detailed spectroscopic study of the SB2 system HD 60803 based on high-resolution spectra obtained with the different spectrographs. The analysis was done with two in…
KIC5950759: a high-amplitude Sct star with amplitude and frequency modulation near the terminal age main sequence
D. M. Bowman, J. Hermans, J. Daszyńska-Daszkiewicz +5
Amongst the intermediate mass pulsating stars known as Sct stars is a subset of high-amplitude and predominantly radial-mode pulsators known as high-amplitude Sct (HADS) st…
The surface brightness - colour relations based on eclipsing binary stars and calibrated with Gaia EDR3
D. Graczyk, G. Pietrzyński, C. Gałan +23
The surface brightness -- colour relation (SBCR) is a basic tool in establishing precise and accurate distances within the Local Group. Detached eclipsing binary stars with accurat…
A comparison of the dynamical and model-derived parameters of the pulsating eclipsing binary KIC9850387
S. Sekaran, A. Tkachenko, C. Johnston +1
We aim to unravel the interior mixing profile of the pulsating eclipsing binary KIC9850387 by comparing its dynamical parameters and the parameters derived through a combination of…
Characterization of the variability in the O+B eclipsing binary HD 165246
Cole Johnston, Nicolas Aimar, Michael Abdul-Masih +8
O-stars are known to experience a wide range of variability mechanisms originating at both their surface and their near-core regions. Characterization and understanding of this var…
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 mass discrepancy in intermediate- and high-mass eclipsing binaries: the need for higher convective core masses
A. Tkachenko, K. Pavlovski, C. Johnston +6
(Abridged) Eclipsing, spectroscopic double-lined binary star systems (SB2) are excellent laboratories for calibrating theories of stellar interior structure and evolution. We aim t…
The Araucaria Project: High-precision orbital parallax and masses of eclipsing binaries from infrared interferometry
A. Gallenne, G. Pietrzyński, D. Graczyk +9
Context. The precise determinations of stellar mass at 1% provide important constraints on stellar evolution models. Accurate parallax measurements can also serve as independ…
Accurate stellar parameters and distance to two evolved eclipsing binary systems, OGLE-BLG-ECL-123903 and OGLE-BLG-ECL-296596, towards the Galactic bulge
K. Suchomska, D. Graczyk, G. Pietrzyński +15
Aim: Our aim is to obtain high-accuracy measurements of the physical and orbital parameters of two evolved eclipsing binary systems, and to use these measurements to study their ev…
Photometric detection of internal gravity waves in early-type stars observed by CoRoT
D. M. Bowman, C. Aerts, C. Johnston +8
Early-type stars are predicted to excite an entire spectrum of internal gravity waves (IGWs) at the interface of their convective cores and radiative envelopes. Numerical simulatio…
On the photometric detection of Internal Gravity Waves in upper main-sequence stars I. Methodology and application to CoRoT targets
D. M. Bowman, C. Aerts, C. Johnston +8
Context. Main sequence stars with a convective core are predicted to stochastically excite Internal Gravity Waves (IGWs), which effectively transport angular momentum throughout th…
Magnetic characterization and variability study of the magnetic SPB star o Lup
B. Buysschaert, C. Neiner, A. J. Martin +5
Thanks to large dedicated surveys, large-scale magnetic fields have been detected for about 10% of early-type stars. We aim to precisely characterize the large-scale magnetic field…
On the sensitivity of gravito-inertial modes to differential rotation in intermediate-mass main-sequence stars
T. Van Reeth, J. S. G. Mombarg, S. Mathis +9
Context. While rotation has a major impact on stellar structure and evolution, its effects are not well understood. Thanks to high- quality and long timebase photometric observatio…
Oscillating red giants in eclipsing binary systems: empirical reference value for asteroseismic scaling relation
N. Themeßl, S. Hekker, J. Southworth +10
The internal structures and properties of oscillating red-giant stars can be accurately inferred through their global oscillation modes (asteroseismology). Based on 1460 days of Ke…
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…
A comprehensive study of young B stars in NGC 2264: I. Space photometry and asteroseismology
K. Zwintz, E. Moravveji, P. I. Papics +9
Space photometric time series of the most massive members of the young open cluster NGC 2264 allow us to study their different sources of variability down to the millimagnitude lev…
Signatures of internal rotation discovered in the Kepler data of five slowly pulsating B stars
P. I. Pápics, A. Tkachenko, T. Van Reeth +9
Massive stars are important building blocks of the Universe, and their stellar structure and evolution models are fundamental cornerstones of various fields in modern astrophysics.…