Results 41 to 50 of about 2,730,798 (330)

Mining gravitational-wave catalogs to understand binary stellar evolution: A new hierarchical Bayesian framework [PDF]

open access: yesPhysical Review D, 2018
Catalogs of stellar-mass compact binary systems detected by ground-based gravitational-wave instruments (such as LIGO and Virgo) will offer insights into the demographics of progenitor systems and the physics guiding stellar evolution.
S. Taylor, D. Gerosa
semanticscholar   +1 more source

A Review of the Mixing Length Theory of Convection in 1D Stellar Modeling

open access: yesGalaxies, 2023
We review the application of the one-dimensional Mixing Length Theory (MLT) model of convection in stellar interiors and low-mass stellar evolution.
Meridith Joyce, Jamie Tayar
doaj   +1 more source

The Dartmouth Stellar Evolution Database [PDF]

open access: yes, 2008
The ever-expanding depth and quality of photometric and spectroscopic observations of stellar populations increase the need for theoretical models in regions of age-composition parameter space that are largely unexplored at present.
A. Dotter   +5 more
semanticscholar   +1 more source

Improving 1D Stellar Models with 3D Atmospheres

open access: yesEPJ Web of Conferences, 2017
Stellar evolution codes play a major role in present-day astrophysics, yet they share common issues. In this work we seek to remedy some of those by the use of results from realistic and highly detailed 3D hydrodynamical simulations of stellar ...
Mosumgaard Jakob Rørsted   +4 more
doaj   +1 more source

Not All Stars Are the Sun: Empirical Calibration of the Mixing Length for Metal-poor Stars Using One-dimensional Stellar Evolution Models [PDF]

open access: yes, 2017
Theoretical stellar evolution models are constructed and tailored to the best known, observationally derived characteristics of metal-poor ([Fe/H] ∼ −2.3) stars representing a range of evolutionary phases: subgiant HD 140283, globular cluster M92, and ...
M. Joyce, B. Chaboyer
semanticscholar   +1 more source

Stellar Multiplicity Meets Stellar Evolution and Metallicity: The APOGEE View [PDF]

open access: yes, 2017
We use the multi-epoch radial velocities acquired by the Apache Point Observatory Galactic Evolution Experiment (APOGEE) survey to perform a large-scale statistical study of stellar multiplicity for field stars in the Milky Way, spanning the evolutionary
C. Badenes   +23 more
semanticscholar   +1 more source

Coupling 1D stellar evolution with 3D-hydrodynamical simulations on the fly – I. A new standard solar model [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society: Letters, 2018
Standard 1D stellar evolution models do not correctly reproduce the structure of the outermost layers of stars with convective envelopes. This has been a long-standing problem in stellar modelling affecting both the predicted evolutionary paths and the ...
A. C. S. Jørgensen   +4 more
semanticscholar   +1 more source

Rotation and stellar evolution

open access: yesEPJ Web of Conferences, 2013
The effects of rotation on the evolution and properties of low-mass stars are first discussed from the pre-main sequence to the red giant phase. We then briefly indicate how some observational constraints available for these stars can help us progress in
Eggenberger P.
doaj   +1 more source

Progenitors of gravitational wave mergers: binary evolution with the stellar grid-based code ComBinE [PDF]

open access: yesMonthly notices of the Royal Astronomical Society, 2018
The first gravitational wave detections of mergers between black holes and neutron stars represent a remarkable new regime of high-energy transient astrophysics. The signals observed with LIGO-Virgo detectors come from mergers of extreme physical objects
M. Kruckow   +4 more
semanticscholar   +1 more source

Planetary Engulfment Prognosis within the ρ CrB System

open access: yesThe Astrophysical Journal, 2023
Exoplanets have been detected around stars at various stages of their lives, ranging from young stars emerging from formation to the latter stages of evolution, including white dwarfs and neutron stars.
Stephen R. Kane
doaj   +1 more source

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