599 citations · 1.2k across the 30 of their papers we have counts for
30 papers
Calibrating angular momentum transport in intermediate-mass stars from gravity-mode asteroseismology. II. Modelling 2937 BAF-type stars
J. S. G. Mombarg, S. Mathis
Asteroseismology of gravity (g)-mode pulsators covering BAF-type stars have shown that angular momentum is redistributed during the main sequence. The efficiency of the transport,…
Gravity-mode main-sequence pulsators in the open clusters NGC 3532 and NGC 2516: Instability strip, near-core rotation, and internal structure
Gang Li, Chenyu He, Joey S. G. Mombarg +2
Context. Studying pulsating stars in clusters opens a new window onto stellar physics. Gravity-mode (g-mode) pulsators in open clusters allow us to measure their near-core rotation…
Populations of tidal and pulsating variables in eclipsing binaries
Alex Kemp, Jasmine Vrancken, Joey S. G. Mombarg +4
In this work, we seek to characterise a large sample of 14377 main sequence eclipsing binaries in terms of their stellar, asteroseismic, and orbital properties. We conduct manual v…
Is a 1D perturbative method sufficient for asteroseismic modelling of Cephei pulsators? Implications for measurements of rotation and internal magnetic fields
J. S. G. Mombarg, V. Vanlaer, S. B. Das +6
Asymmetries in the observed rotational splittings of a multiplet contain information about the star's rotation profile and internal magnetic field. However, to exploit this informa…
The inertial dip as a window on the convective core dynamics
Lucas Barrault, Lisa Bugnet, Stéphane Mathis +1
Gamma Dor stars are ideal targets for studies of the innermost dynamical properties of stars, due to their rich frequency spectrum of gravito-inertial modes propagating in the radi…
Asteroseismology of the young open cluster NGC 2516 II. Constraining cluster age using gravity-mode pulsators
Gang Li, Joey S. G. Mombarg, Zhao Guo +1
Although asteroseismology is regarded as the most powerful tool for probing stellar interiors, seismic modelling remains dependent on global stellar parameters. Stellar clusters of…
Exploring the probing power of gamma-Dor's inertial dip for core magnetism: case of a toroidal field
Lucas Barrault, Lisa Bugnet, Stéphane Mathis +1
Gamma-Dor stars are ideal targets for studies of stellar innermost dynamical properties due to their rich asteroseismic spectrum of gravity modes. Integrating internal magnetism to…
Angular momentum relaxation in models of rotating early-type stars
Michel Rieutord, Enzo Enzo Brossier-Sécher, Joey Mombarg
The rotational evolution of stars is still an open question of stellar physics because of the numerous phenomena that can contribute to the distribution of angular momentum. This p…
Evolution of the near-core rotation frequency of 2,497 intermediate-mass stars from their dominant gravito-inertial mode
Conny Aerts, Timothy Van Reeth, Joey S. G. Mombarg +1
We combined Gaia DR3 and TESS photometric light curves to estimate the internal physical properties of 2,497 gravity-mode pulsators. We relied on asteroseismic properties of Kepler…
Calibrating chemical mixing induced by internal gravity waves based on hydrodynamical simulations; The chemical evolution of OB-type stars
J. S. G. Mombarg, A. Varghese, R. P. Ratnasingam
Internal gravity waves (IGWs) have been shown to contribute to the transport of chemical elements in stars with a convective core and radiative envelope. Recent 2D hydrodynamical s…
KIC 4150611: A quadruply eclipsing heptuple star system with a g-mode period-spacing pattern Asteroseismic modelling of the g-mode period-spacing pattern
Alex Kemp, Dario J Fritzewski, Timothy Van Reeth +7
In this work, we aim to estimate the stellar parameters of the primary (Aa) by performing asteroseismic analysis on its period-spacing pattern. We use the C-3PO neural network to p…
Estimates of (convective core) masses, radii, and relative ages for 14,000 Gaia-discovered gravity-mode pulsators monitored by TESS
Joey S. G. Mombarg, Conny Aerts, Timothy Van Reeth +1
Gravito-inertial asteroseismology saw its birth from the 4-years long light curves of rotating main-sequence stars assembled by the Kepler space telescope. High-precision measureme…
An improved asteroseismic age of the rapid rotator Altair from TESS data
Michel Rieutord, Daniel R. Reese, Joey S. G. Mombarg +1
Understanding the effects of rotation in stellar evolution is key to modelling early-type stars, half of which have equatorial velocities over 100 km/s. The nearby star Altair is a…
Probability distributions of initial rotation velocities and core-boundary mixing efficiencies of γ Doradus stars
Joey S. G. Mombarg, Conny Aerts, Geert Molenberghs
The theory the rotational and chemical evolution is incomplete, thereby limiting the accuracy of model-dependent stellar mass and age determinations. The Doradus pulsators are…
Asteroseismology of the young open cluster NGC 2516 I: Photometric and spectroscopic observations
Gang Li, Conny Aerts, Timothy R. Bedding +8
Asteroseismic modelling of isolated star presents significant challenges due to the difficulty in accurately determining stellar parameters, particularly the stellar age. These cha…
The first two-dimensional stellar structure and evolution models of rotating stars
Joey S. G. Mombarg, Michel Rieutord, Francisco Espinosa Lara
Rotation is a key ingredient in the theory of stellar structure and evolution. Until now, stellar evolution codes operate in a 1-D framework for which the validity domain in regard…
Calibrating angular momentum transport in intermediate-mass stars from gravity-mode asteroseismology
Joey S. G. Mombarg
The physical mechanisms driving the transport of angular momentum in stars are not fully understood, as current models cannot explain the observed stellar rotation profiles across…
A calibration point for stellar evolution from massive star asteroseismology
Siemen Burssens, Dominic M. Bowman, Mathias Michielsen +10
Massive stars are progenitors of supernovae, neutron stars and black holes. During the hydrogen-core burning phase their convective cores are the prime drivers of their evolution,…
Modules for Experiments in Stellar Astrophysics (MESA): Time-Dependent Convection, Energy Conservation, Automatic Differentiation, and Infrastructure
Adam S. Jermyn, Evan B. Bauer, Josiah Schwab +19
We update the capabilities of the open-knowledge software instrument Modules for Experiments in Stellar Astrophysics (MESA). The new auto_diff module implements automatic different…
Predictions for gravity-mode periods and surface abundances in intermediate-mass dwarfs from shear mixing and radiative levitation
Joey S. G. Mombarg, Aaron Dotter, Michel Rieutord +3
The treatment of chemical mixing in the radiative envelopes of intermediate-mass stars has hardly been calibrated so far. Recent asteroseismic studies demonstrated that a constant…
Rossby numbers and stiffness values inferred from gravity-mode asteroseismology of rotating F- and B-type dwarfs: consequences for mixing, transport, magnetism, and convective penetration
C. Aerts, K. Augustson, S. Mathis +5
Multi-dimensional (magneto-)hydrodynamical simulations of physical processes in stellar interiors depend on a multitude of uncalibrated free parameters, which set the spatial and t…
A homogeneous spectroscopic analysis of a Kepler legacy sample of dwarfs for gravity-mode asteroseismology
Sarah Gebruers, Ilya Straumit, Andrew Tkachenko +12
Asteroseismic modelling of the internal structure of main-sequence stars born with a convective core has so far been based on homogeneous analyses of space photometric Kepler light…
Constraining stellar evolution theory with asteroseismology of Doradus stars using deep learning
Joey S. G. Mombarg, Timothy Van Reeth, Conny Aerts
The efficiency of the transport of angular momentum and chemical elements inside intermediate-mass stars lacks proper calibration, thereby introducing uncertainties on a star's evo…
The effect of the centrifugal acceleration on period spacings of gravito-inertial modes in intermediate-mass stars
Jan Henneco, Timothy Van Reeth, Vincent Prat +3
The Kepler and TESS missions delivered high-precision, long-duration photometric time series for hundreds of main-sequence stars with gravito-inertial (g) pulsation modes. This hig…