Results 1 to 10 of about 14,785 (302)
EPJ Web of Conferences, 2023 Polytropes, Virial theorem, evolutionary time scales, degrees of freedom, radiative transport, molecular weight, degeneracy, Jeans mass, and Eddington luminosity are basic ingredients to describe the physics of stars.
Palmerini S.
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Chemical element transport in stellar evolution models [PDF]
Royal Society Open Science, 2017 Stellar evolution computations provide the foundation of several methods applied to study the evolutionary properties of stars and stellar populations, both Galactic and extragalactic.
Maurizio Salaris, Santi Cassisi
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Toward a New Paradigm in the Analysis of Asteroseismic Lightcurves
Frontiers in Astronomy and Space Sciences, 2020 This paper aims at being a provocative guide to the future of asteroseismology from the perspective of the analysis of time series, where the fundamentals of harmonic analysis are subjected to stress tests.
Juan Carlos Suárez +8 more
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Stellar evolution and the Standard Solar Model [PDF]
EPJ Web of Conferences, 2020 This contribution is meant as a very brief introduction to the principal concepts of stellar physics. First the main physical processes active in stellar structures will be shortly described, then the most important features during the stellar life-cycle
Degl’Innocenti Scilla
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Stellar test of the physics of unification [PDF]
Physical Review D, 2012 We discuss the feasibility of using solar-type main-sequence stars as probes of fundamental physics and unification. We use a simple polytropic stellar structure model and study its sensitivity to variations of the gravitational, strong and electroweak coupling constants in the context of unification scenarios.
Vieira, J. P. P. +2 more
openaire +2 more sources
The stellar atmosphere physical system I. Phenomenological definition and representation of a stellar atmosphere [PDF]
Serbian Astronomical Journal, 2018 This paper is the first in a series of two that deals with the physical and numerical grounds of stellar atmosphere modelling. After a phenomenological definition of a star and stellar atmosphere, the physics that shapes the stellar atmosphere ...
Crivellari Lucio
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The Astronomical Journal, 2023 In this paper, we report on the follow-up of six potential exoplanets detected with Gaia astrometry and provide an overview of what is currently known about the nature of the entire Gaia astrometric exoplanet candidate sample, 72 systems in total.
Marcus L. Marcussen, Simon H. Albrecht
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Hot super-Earths stripped by their host stars
Nature Communications, 2016 Theory predicts a deficit of super-Earth sized planets, which orbit close to their host star. Here, Lundkvist et al. use data from the NASA Kepler mission to show that this deficit is also seen in observations, thereby providing new insight into ...
M. S. Lundkvist +28 more
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Databases of Publications and Observations as a Part of the Crimean Astronomical Virtual Observatory
Open Astronomy, 2015 We describe the main principles of formation of databases (DBs) with information about astronomical objects and their physical characteristics derived from observations obtained at the Crimean Astrophysical Observatory (CrAO) and published in the ...
Shlyapnikov A. +2 more
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What asteroseismology can do for exoplanets
EPJ Web of Conferences, 2015 We describe three useful applications of asteroseismology in the context of exoplanet science: (1) the detailed characterisation of exoplanet host stars; (2) the measurement of stellar inclinations; and (3) the determination of orbital eccentricity from ...
Van Eylen Vincent +14 more
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