Results 11 to 20 of about 88,144 (207)

Constraining stellar and orbital co-evolution through ensemble seismology of solar-like oscillators in binary systems. A census of oscillating red giants and dwarf stars in Gaia DR3 binaries

open access: yesAstronomy & Astrophysics, 2023
Binary systems constitute a valuable astrophysics tool for testing our understanding of stellar structure and evolution. Systems containing at least one oscillating component are interesting in this regard because asteroseismology offers independent ...
P. G. Beck   +25 more
semanticscholar   +1 more source

Solar System Science with the Orbiting Astronomical Satellite Investigating Stellar Systems (OASIS) Observatory

open access: yesSpace Science Reviews, 2022
The overarching theme of the Orbiting Astronomical Satellite for Investigating Stellar Systems (OASIS), an Astrophysics MIDEX-class mission concept, is Following water from galaxies, through protostellar systems, to Earth’s oceans.
C. Anderson   +8 more
semanticscholar   +1 more source

Stellar Population Astrophysics (SPA) with TNG [PDF]

open access: yesAstronomy & Astrophysics, 2020
Context. Open clusters are excellent tracers of the chemical evolution of the Galactic disc. The spatial distribution of their elemental abundances, through the analysis of high-quality and high-resolution spectra, provides insight into the chemical ...
G. Casali   +11 more
semanticscholar   +1 more source

MESA ISOCHRONES AND STELLAR TRACKS (MIST). I. SOLAR-SCALED MODELS [PDF]

open access: yes, 2016
This is the first of a series of papers presenting the Modules for Experiments in Stellar Astrophysics (MESA) Isochrones and Stellar Tracks (MIST) project, a new comprehensive set of stellar evolutionary tracks and isochrones computed using MESA, a state-
Jieun Choi   +5 more
semanticscholar   +1 more source

Stellar population astrophysics (SPA) with the TNG [PDF]

open access: yesAstronomy & Astrophysics, 2019
Context. Open clusters exquisitely track the Galactic disc chemical properties and its time evolution; a substantial number of studies and large spectroscopic surveys focus mostly on the chemical content of relatively old clusters (age ≳ 1 Gyr ...
V. D’Orazi   +10 more
semanticscholar   +3 more sources

Simulations of stellar convection, pulsation and semiconvection [PDF]

open access: yes, 2010
We report on modelling in stellar astrophysics with the ANTARES code. First, we describe properties of turbulence in solar granulation as seen in high-resolution calculations.
Bascoul   +13 more
core   +1 more source

Stromlo Stellar Tracks: the importance of non-Solar scaled abundances for massive stars

open access: yes, 2021
I present the Stromlo Stellar Tracks [1], a set of stellar evolutionary tracks for massive stars (>10 M ), computed by modifying the Modules for Experiments in Stellar Astrophysics (MESA) 1D stellar evolution package, to fit the Galactic Concordance ...
K. Grasha
semanticscholar   +1 more source

Optimized gyrosynchrotron algorithms and fast codes [PDF]

open access: yes, 2010
Gyrosynchrotron (GS) emission of charged particles spiraling in magnetic fields plays an exceptionally important role in astrophysics. In particular, this mechanism makes a dominant contribution to the continuum solar and stellar radio emissions. However,
Alexey A. Kuznetsov   +5 more
core   +1 more source

A Comparison between Physics-based and Polytropic MHD Models for Stellar Coronae and Stellar Winds of Solar Analogs [PDF]

open access: yes, 2017
The development of the Zeeman–Doppler Imaging (ZDI) technique has provided synoptic observations of surface magnetic fields of low-mass stars. This led the stellar astrophysics community to adopt modeling techniques that have been used in solar physics ...
O. Cohen
semanticscholar   +1 more source

25 Years of Self-Organized Criticality: Solar and Astrophysics [PDF]

open access: yesSpace Science Reviews, 2014
Shortly after the seminal paper “Self-Organized Criticality: An explanation of 1/fnoise” by Bak et al. (1987), the idea has been applied to solar physics, in “Avalanches and the Distribution of Solar Flares” by Lu and Hamilton (1991).
M. Aschwanden   +14 more
semanticscholar   +1 more source

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