[HTML][HTML] Multidimensional simulations of core convection
D Lecoanet, PVF Edelmann - Galaxies, 2023 - mdpi.com
The cores of main sequence intermediate-and high-mass stars are convective. Mixing at the
radiative–convective boundary, waves excited by the convection, and magnetic fields …
radiative–convective boundary, waves excited by the convection, and magnetic fields …
[HTML][HTML] Making waves in massive star asteroseismology
DM Bowman - Astrophysics and Space Science, 2023 - Springer
Massive stars play a major role not only in stellar evolution but also galactic evolution theory.
This is because of their dynamical interaction with binary companions, but also because …
This is because of their dynamical interaction with binary companions, but also because …
[HTML][HTML] Photometric detection of internal gravity waves in upper main-sequence stars-I. Methodology and application to CoRoT targets
Context. Main sequence stars with a convective core are predicted to stochastically excite
internal gravity waves (IGWs), which effectively transport angular momentum throughout the …
internal gravity waves (IGWs), which effectively transport angular momentum throughout the …
[HTML][HTML] The photometric variability of massive stars due to gravity waves excited by core convection
Massive stars die in catastrophic explosions that seed the interstellar medium with heavy
elements and produce neutron stars and black holes. Predictions of the explosion's …
elements and produce neutron stars and black holes. Predictions of the explosion's …
Dynamics in a stellar convective layer and at its boundary: Comparison of five 3D hydrodynamics codes
Our ability to predict the structure and evolution of stars is in part limited by complex, 3D
hydrodynamic processes such as convective boundary mixing. Hydrodynamic simulations …
hydrodynamic processes such as convective boundary mixing. Hydrodynamic simulations …
[HTML][HTML] Photometric detection of internal gravity waves in upper main-sequence stars-III. Comparison of amplitude spectrum fitting and Gaussian process regression …
DM Bowman, TZ Dorn-Wallenstein - Astronomy & Astrophysics, 2022 - aanda.org
Context. Recent studies of massive stars using high-precision space photometry have
revealed that they commonly exhibit stochastic low-frequency (SLF) variability. This has …
revealed that they commonly exhibit stochastic low-frequency (SLF) variability. This has …
Variability of Blue Supergiants in the LMC with TESS
The blue supergiant (BSG) problem, namely, the overabundance of BSGs inconsistent with
classical stellar evolution theory, remains an open question in stellar astrophysics. Several …
classical stellar evolution theory, remains an open question in stellar astrophysics. Several …
Two-dimensional simulations of internal gravity waves in a 5 M⊙ zero-age-main-sequence model
Main-sequence intermediate-mass stars present a radiative envelope that supports internal
gravity waves (IGWs). Excited at the boundary with the convective core, IGWs propagate …
gravity waves (IGWs). Excited at the boundary with the convective core, IGWs propagate …
Two-dimensional simulations of solar-like models with artificially enhanced luminosity-II. Impact on internal gravity waves
Artificially increasing the luminosity and the thermal diffusivity of a model is a common tactic
adopted in hydrodynamical simulations of stellar convection. In this work, we analyse the …
adopted in hydrodynamical simulations of stellar convection. In this work, we analyse the …
[HTML][HTML] Tidally excited oscillations in MACHO 80.7443. 1718: Changing amplitudes and frequencies, high-frequency tidally excited mode, and a decrease in the …
PA Kołaczek-Szymański, A Pigulski, M Wrona… - Astronomy & …, 2022 - aanda.org
Context. Eccentric ellipsoidal variables (also known as heartbeat stars) is a class of
eccentric binaries in which proximity effects, and tidal distortion due to time-dependent tidal …
eccentric binaries in which proximity effects, and tidal distortion due to time-dependent tidal …