101 citations · 264 across the 10 of their papers we have counts for
10 papers · 1 filter
MELCHIORS: The Mercator Library of High Resolution Stellar Spectroscopy
P. Royer, T. Merle, K. Dsilva +71
Over the past decades, libraries of stellar spectra have been used in a large variety of science cases, including as sources of reference spectra for a given object or a given spec…
Tidal perturbations and eclipse mapping in the pulsations in the hierarchical triple system U~Gru
Cole Johnston, Andrew Tkachenko, Timothy Van Reeth +4
Context. Unambiguous examples of the influence of tides on self-excited, free stellar pulsations have recently been observationally detected in space-based photometric data. Aims.…
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…
Tango of celestial dancers: A sample of detached eclipsing binary systems containing g-mode pulsating components. A case study of KIC9850387
S. Sekaran, A. Tkachenko, M. Abdul-Masih +9
Eclipsing binary systems with components that pulsate in gravity modes ( modes) allow for simultaneous and independent constraints of the chemical mixing profiles of stars. We a…
The spectroscopic binaries RV Tauri and DF Cygni
Rajeev Manick, Devika Kamath, Hans Van Winckel +7
Aim: The focus of this paper is on two famous but still poorly understood RV Tauri stars: RV Tau and DF Cyg. We aim at confirming their suspected binary nature and deriving their o…
Two's a crowd? Characterising the effect of photometric contamination on the extraction of the global asteroseismic parameter in red-giant binaries
Sanjay Sekaran, Cole Johnston, Andrew Tkachenko +3
Theoretical scaling relations for solar-like oscillators and red giants are widely used to estimate fundamental stellar parameters. The accuracy and precision of these relations ha…
Astro2020 Science White Paper: gravity-wave asteroseismology of intermediate- and high-mass stars
Andrew Tkachenko, Conny Aerts, Dominic M. Bowman +17
The evolution of a star is driven by the physical processes in its interior making the theory of stellar structure and evolution the most crucial ingredient for not only stellar ev…
The evolutionary nature of RV Tauri stars in the SMC and LMC
Rajeev Manick, Hans Van Winckel, Devika Kamath +2
Based on their stellar parameters and the presence of a mid-IR excess due to circumstellar dust, RV Tauri stars have been classified as post-AGB stars. Our recent studies, however,…
Forward asteroseismic modeling of stars with a convective core from gravity-mode oscillations: parameter estimation and stellar model selection
C. Aerts, G. Molenberghs, M. Michielsen +13
We propose a methodological framework to perform forward asteroseismic modeling of stars with a convective core, based on gravity-mode oscillations. These probe the near-core regio…