210 citations · 1.3k across the 44 of their papers we have counts for
14 papers · 1 filter
Internal rotation and buoyancy travel time of 60 gamma Doradus stars from uninterrupted TESS light curves spanning 352 days
Stefano Garcia, Timothy Van Reeth, Joris De Ridder +1
Context. Gamma Doradus (hereafter ~Dor) stars are gravity-mode pulsators whose periods carry information about the internal structure of the star. These periods are especially s…
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.…
The Nature of Unseen Companions in Massive Single-Line Spectroscopic Binaries
Hugues Sana, Michael Abdul-Masih, Gareth Banyard +14
Massive stars are predominantly found in binaries and higher order multiples. While the period and eccentricity distributions of OB stars are now well established across different…
Spinning up the Surface: Evidence for Planetary Engulfment or Unexpected Angular Momentum Transport?
Jamie Tayar, Facundo D. Moyano, Melinda Soares-Furtado +15
In this paper, we report the potential detection of a nonmonotonic radial rotation profile in a low-mass lower-luminosity giant star. For most low- and intermediate-mass stars, the…
Four bright eclipsing binaries with gamma Doradus pulsating components: CM Lac, MZ Lac, RX Dra and V2077 Cyg
John Southworth, Timothy Van Reeth
The study of pulsating stars in eclipsing binaries holds the promise of combining two different ways of measuring the physical properties of a star to obtain improved constraints o…
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…
Asteroseismology reveals the near-core magnetic field strength in the early-B star HD 43317
D. M. Bowman, D. Lecoanet, T. Van Reeth
Spectropolarimetic campaigns have established that large-scale magnetic fields are present at the surfaces of approximately 10% of massive dwarf stars. However, there is a dearth o…
Identifying quiescent compact objects in massive Galactic single-lined spectroscopic binaries
L. Mahy, H. Sana, T. Shenar +13
Aims. To search for these rare objects, we study 32 Galactic O-type stars that were reported as SB1s in the literature. In our sample we include Cyg X-1, which is known to host an…
Classifying Kepler light curves for 12,000 A and F stars using supervised feature-based machine learning
Nicholas H. Barbara, Timothy R. Bedding, Ben D. Fulcher +2
With the availability of large-scale surveys like Kepler and TESS, there is a pressing need for automated methods to classify light curves according to known classes of variable st…
Analysis of high-resolution FEROS spectroscopy for a sample of variable B-type stars assembled from TESS photometry
Sarah Gebruers, Andrew Tkachenko, Dominic M. Bowman +8
Spectroscopic data are necessary to break degeneracies in asteroseismic modelling of the interior structure in high- and intermediate-mass stars. We derive precise photospheric ste…
Multiple variability time-scales of the early nitrogen-rich Wolf-Rayet star WR7
J. A. Toalá, D. Bowman, T. Van Reeth +7
We present the analysis of the optical variability of the early, nitrogen-rich Wolf-Rayet (WR) star WR7. The analysis of multi-sector Transiting Exoplanet Survey Satellite (TESS) l…
The near-core rotation of HD 112429: a gamma Doradus star with TESS photometry and legacy spectroscopy
T. Van Reeth, P. De Cat, J. Van Beeck +8
The TESS space mission provides us with high-precision photometric observations of bright stars over more than 70% of the entire sky, allowing us to revisit and characterise well-k…
Asteroseismic inference of the near-core magnetic field strength in the main sequence B star HD 43317
Daniel Lecoanet, Dominic M. Bowman, Timothy Van Reeth
About 10 per cent of intermediate- and high-mass dwarf stars are observed to host a strong large-scale magnetic field at their surface, which is thought to be of fossil field origi…
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…