165 citations · 1.3k across the 27 of their papers we have counts for
25 papers
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…
New Cep pulsators discovered with K2 space photometry
S. Burssens, D. M. Bowman, C. Aerts +3
We present the discovery of three new Cep pulsators, three new pulsators with frequency groupings, and frequency patterns in a B3Ib star, all of which show pulsations with freq…
Low-frequency gravity waves in blue supergiants revealed by high-precision space photometry
Dominic M. Bowman, Siemen Burssens, May G. Pedersen +14
Almost all massive stars explode as supernovae and form a black hole or neutron star. The remnant mass and the impact of the chemical yield on subsequent star formation and galacti…
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…
Binary Asteroseismic Modelling: isochrone-cloud methodology and application to Kepler gravity-mode pulsators
C. Johnston, A. Tkachenko, C. Aerts +5
The simultaneous presence of variability due to both pulsations and binarity is no rare phenomenon. Unfortunately, the complexities of dealing with even one of these sources of var…
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…
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…
Forward seismic modelling of the pulsating magnetic B-type star HD 43317
B. Buysschaert, C. Aerts, D. M. Bowman +5
The large-scale magnetic fields detected at the surface of about 10% of hot stars extend into the stellar interior, where they may alter the structure. Deep inner regions of stars…
K2 space photometry reveals rotational modulation and stellar pulsations in chemically peculiar A and B stars
D. M. Bowman, B. Buysschaert, C. Neiner +3
The physics of magnetic hot stars and how a large-scale magnetic field affects their interior properties is largely unknown. Few studies have combined high-quality observations and…
K2 photometry and HERMES spectroscopy of the blue supergiant rho Leo: rotational wind modulation and low-frequency waves
C. Aerts, D. M. Bowman, S. Simon-Diaz +10
We present an 80-d long uninterrupted high-cadence K2 light curve of the B1Iab supergiant rho Leo (HD 91316), deduced with the method of halo photometry. This light curve reveals a…
BRITE-Constellation high-precision time-dependent photometry of the early-O-type supergiant Puppis unveils the photospheric drivers of its small- and large-scale wind structures
Tahina Ramiaramanantsoa, Anthony F. J. Moffat, Robert Harmon +33
From months of dual-band optical photometric monitoring at the mmag level, BRITE-Constellation has revealed two simultaneous types of variability in the O4I(n)fp star …
Magneto-asteroseismology of massive magnetic pulsators
B. Buysschaert, C. Neiner, C. Aerts
Simultaneously and coherently studying the large-scale magnetic field and the stellar pulsations of a massive star provides strong complementary diagnostics suitable for detailed s…
Magnetic characterization of the SPB/ Cep hybrid pulsator HD 43317
B. Buysschaert, C. Neiner, M. Briquet +1
Large-scale magnetic fields at the surface of massive stars do not only influence the outer-most layers of the star, but also have consequences for the deep interior, only observat…
Discovery of magnetic A supergiants: the descendants of magnetic main sequence B stars
Coralie Neiner, Mary E. Oksala, Cyril Georgy +8
In the context of the high resolution, high signal-to-noise ratio, high sensitivity, spectropolarimetric survey BritePol, which complements observations by the BRITE constellation…
Detection of intrinsic variability in the eclipsing massive main sequence O+B binary HD 165246
Cole Johnston, Bram Buysschaert, Andrew Tkachenko +2
We present the analysis of 29.77 days of K2 space photometry of the well-detached massive 4.6 d O+B binary HD 165246 (V=7.8) obtained during Campaign 9b. This analysis reveals intr…
Studying the photometric and spectroscopic variability of the magnetic hot supergiant Orionis Aa
B. Buysschaert, C. Neiner, N. D. Richardson +14
Massive stars play a significant role in the chemical and dynamical evolution of galaxies. However, much of their variability, particularly during their evolved supergiant stage, i…
The Most Massive Heartbeat: An In-depth Analysis of ι Orionis
Herbert Pablo, N. D. Richardson, J. Fuller +17
ι Ori is a well studied massive binary consisting of an O9 III + B1 III/IV star. Due to its high eccentricity (e = 0.764) and short orbital period (P orb = 29.13376 d), it has been…
The evolution of magnetic fields in hot stars
Mary E. Oksala, Coralie Neiner, Cyril Georgy +6
Over the last decade, tremendous strides have been achieved in our understanding of magnetism in main sequence hot stars. In particular, the statistical occurrence of their surface…
Understanding the photometric variability of ζ Ori Aa
B. Buysschaert, C. Neiner, T. Ramiaramanantsoa +3
We studied the variability of the magnetic O-type supergiant Ori Aa using multi-colour BRITE photometry. We confirmed the known rotation frequency …
Preparing and correcting extracted BRITE observations
B. Buysschaert, H. Pablo, C. Neiner
Extracted BRITE lightcurves must be carefully prepared and corrected for instrumental effects before a scientific analysis can be performed. Therefore, we have created a suite of P…
Testing the asymptotic relation for period spacings from mixed modes of red giants observed with the Kepler mission
B. Buysschaert, P. G. Beck, E. Corsaro +7
Dipole mixed pulsation modes of consecutive radial order have been detected for thousands of low-mass red-giant stars with the NASA space telescope Kepler. Such modes have the pote…
Discovery of two new bright magnetic B stars: i Car and Atlas
Coralie Neiner, Bram Buysschaert, Mary E. Oksala +1
The BRITE (BRIght Target Explorer) constellation of nano-satellites performs seismology of bright stars via high precision photometry. In this context, we initiated a high resoluti…