Results 71 to 80 of about 507 (173)

The impact of differential rotation on the stochastic excitation of acoustic modes in solar-like pulsators

Astronomy & Astrophysics
Context. Acoustic modes are excited by turbulent convection in the outer convective envelope of solar-like stars. Observational results from asteroseismic studies have shown that 44% of solar-like stars do not present detectable stochastically excited ...
Biscarrat G., Bessila L., Mathis S.
doaj   +1 more source

Tales of stellar and binary coevolution, told by stellar oscillations

Astronomy & Astrophysics
Context. Red giants are increasingly used as stellar population tracers due to their well-understood evolution and the availability of asteroseismic observables. However, stellar binarity can alter observable properties and introduce strong biases. Aims.
Beck Paul G.
doaj   +1 more source

PIMMS: Pulsation-Informed Magnetic Mapping of Stars with Zeeman-Doppler imaging

Astronomy & Astrophysics
Context. Magneto-asteroseismology is a novel technique allowing for more precise determinations of internal properties of magnetic pulsating stars, but it requires an accurate characterisation of the surface magnetic field that was not previously ...
Gutteridge C., Neiner C., Catala C., Folsom C. P.   +3 more
doaj   +1 more source

Editorial: Challenges of asteroseismology in the era of space missions

Frontiers in Astronomy and Space Sciences, 2022
Javier Pascual-Granado, Tiago Campante, Antonio García Hernández, Zhao Guo   +3 more
doaj   +1 more source

Gravitational-wave asteroseismology with fundamental modes from compact binary inspirals. [PDF]

Nat Commun, 2020
Pratten G, Schmidt P, Hinderer T.
europepmc   +1 more source

Near-degeneracy effects in quadrupolar mixed modes

Astronomy & Astrophysics
Dipolar (ℓ = 1) mixed modes have revealed a surprisingly weak differential rotation between the core and the envelope of evolved solar-like stars. Quadrupolar (ℓ = 2) mixed modes also contain information regarding internal dynamics but are very rarely ...
Liagre B., Desai A., Einramhof L., Bugnet L.   +3 more
doaj   +1 more source

Asteroseismic modelling of main-sequence solar-like stars and Kepler exoplanet host stars with the FICO procedure

Astronomy & Astrophysics
Context. Asteroseismology has revolutionised our ability to characterise solar-like stars. Since asteroseismic modelling is a key factor in upcoming space-based missions such as PLATO, it becomes increasingly relevant to develop robust and scalable ...
Bétrisey J., Reese D. R., Pezzotti C., Goupil M. J., Cunha M. S.   +4 more
doaj   +1 more source

Gravity-mode main-sequence pulsators in the open clusters NGC 3532 and NGC 2516

Astronomy & Astrophysics
Context. Studying pulsating stars in clusters opens a new window into stellar physics. More specifically, gravity-mode (g-mode) pulsators in open clusters allow us to measure their near-core rotation rates.
Li Gang, He Chenyu, Mombarg Joey S. G., Fritzewski Dario J., Aerts Conny   +4 more
doaj   +1 more source

Stellar Ages of TESS Stars, Adopting Spectroscopic Data from Gaia GSP-Spec

Galaxies
The Gaia DR3 GSP-spec/TESS (GST) catalog combines asteroseismic data from NASA’s TESS mission with spectroscopic data from ESA’s Gaia mission, and contains about 116,000 Red Clump and Red Giant Branch stars, surpassing previous datasets in size and ...
Elisa Denis, Patrick de Laverny, Andrea Miglio, Alejandra Recio-Blanco, Pedro Alonso Palicio, Josefina Montalban, Carlos Abia   +6 more
doaj   +1 more source

Simulations of Solar and Stellar Dynamos and Their Theoretical Interpretation. [PDF]

Space Sci Rev, 2023
Käpylä PJ, Browning MK, Brun AS, Guerrero G, Warnecke J.   +4 more
europepmc   +1 more source