Results 181 to 190 of about 1,108 (218)
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2004
The use of the term atmosphere for the outer layers of a star is not obvious. The atmosphere of a terrestrial planet is easily defined as the gaseous envelope extending from the crust (or ocean) out into free space. For stars, the lower boundary is less easily defined.
Bengt Gustafsson, Susanne Höfner
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The use of the term atmosphere for the outer layers of a star is not obvious. The atmosphere of a terrestrial planet is easily defined as the gaseous envelope extending from the crust (or ocean) out into free space. For stars, the lower boundary is less easily defined.
Bengt Gustafsson, Susanne Höfner
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On the Atmosphere of a Rotating Star
Publications of the Astronomical Society of Japan, 1966Abstract The condition of radiative equilibrium in the atmosphere of a rotating star is examined. An expression is obtained for the radiation flux in the atmosphere of a rotating star under the assumption of hydrostatic equilibrium for the case in which the centrifugal force has a potential.
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The Spectra and Atmospheres of Stars
2002Astellar atmosphere is defined as that layer of a star from which electromagnetic radiation can escape; it is thus the “visible” outer part of the star. Its structure is closely connected with the spectra it emits.
Albrecht Unsöld, Bodo Baschek
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A Neutron Star Atmosphere in the Laboratory with Petawatt Lasers
Astrophysics and Space Science, 2005zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Moon, S. J. +7 more
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Hydrodynamical Model Atmospheres of Metal‐Poor Stars
AIP Conference Proceedings, 2008Standard one‐dimensional (1D) model atmospheres rely on the assumption of radiative equilibrium in the non‐convective part of the stellar photosphere. However, gas‐dynamical effects can lead to dramatic deviations from radiative equilibrium conditions, especially in metal‐poor stellar atmospheres.
Ludwig, Hans-Günter +4 more
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2006
Properties of the thermal radiation emitted by neutron stars (NSs) are determined by thin plasma layers (atmospheres) at their surfaces. The NS atmospheres are very different from those of usual stars due to the immense gravity and huge magnetic fields. Current models of hydrogen NS atmospheres show that the spectra deviate substantially from blackbody
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Properties of the thermal radiation emitted by neutron stars (NSs) are determined by thin plasma layers (atmospheres) at their surfaces. The NS atmospheres are very different from those of usual stars due to the immense gravity and huge magnetic fields. Current models of hydrogen NS atmospheres show that the spectra deviate substantially from blackbody
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Stars with expanding atmospheres
Vistas in Astronomy, 1956Abstract Most stars are stabilized spheres whose outer strata are nearly quiescent. Those exceptional objects in whose atmospheres outward motions have been observed may be placed in three groups: pulsating stars, stars with occasional outbursts, and stars with a continual outflow of atoms.
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Nucleosynthesis in neutron star atmospheres
Astrophysics and Space Science, 1969The composition of neutron star atmospheres is calculated as a function of time including effects of diffusion, cooling and thermonuclear reactions. A seven-component nuclear reaction network with includes He4, C12, O16, Ne20, Mg24, Si28 and Fe56 is utilized.
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Atmospheres of Rocky Exoplanets
Annual Review of Astronomy and Astrophysics, 2022Laura Kreidberg, Robin Wordsworth
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