Results 11 to 20 of about 34,048 (260)
OPserver: interactive online computations of opacities and radiative accelerations [PDF]
Monthly Notices of the Royal Astronomical Society, 2007 5 pages, 1 ...
C. Mendoza +10 more
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A note on the contribution of multi-photon processes to radiative opacity [PDF]
High Energy Density Physics, 2017 Recently, Bailey et al. performed iron opacity measurements on the Z machine at Sandia National Laboratory in conditions close to the ones of the base of the convective zone of the Sun. Such experiments have raised questions about the physical models commonly used in opacity codes. To understand the discrepancy between experiment and theory, More et al.
Jean‐Christophe Pain
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Radiative opacity tables for 40 stellar mixtures
The Astrophysical Journal Supplement Series, 1976 Using improved methods, radiative opacities for 40 mixtures of elements are given for use in calculations of stellar structure, stellar evolution, and stellar pulsation. The major improvements over previous Los Alamos data are increased iron abundance in the composition, better allowance for the continuum depression for bound electrons, and corrections
A. N. Cox, J. E. Tabor
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Quantum Molecular Dynamics calculations of radiative opacities [PDF]
Astronomy & Astrophysics, 2003 We show that Quantum Molecular Dynamics provides a powerful tool to extend and benchmark current opacities libraries into the complex regime of warm dense matter. In this regime, the medium can be constituted of electrons, protons, atoms and molecules, while plasma and many-body effects can not be treated as perturbations.
S. Mazevet +4 more
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Opacity Studies of Silicon in Radiatively Heated Plasma [PDF]
The Astrophysical Journal, 2008 Measurements of the opacity of silicon at high temperature and high density are reported. A silicon dioxide foam was heated by eight nanosecond laser beams while a backlighter X-ray source was produced with a picosecond laser. Absorptions of the 1-2 transitions of Si XII through Si VI were observed in the wavelength range from 6.6 to 7.1 A.
Hui Wei +22 more
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Solar neutrinos and the influence of radiative opacities on solar models [PDF]
The Astrophysical Journal, 1974 Use of new radiative opacities based on the hot Thomas-Fermi model of the atom yields a predicted solar neutrino flux which is still considerably larger than the flux observed in Davis's Cl-37 experiment.
T. R. Carson +2 more
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Radiative opacities for carbon- and oxygen-rich mixtures
The Astrophysical Journal, 1993 Recent OPAL calculations have obtained significant differences in the Rosseland mean opacities compared with earlier Los Alamos work. These new opacities have had a favorable impact on several astrophysical problems, but the efforts have concentrated on hydrogen main-sequence stars or stellar envelopes.
Carlos A. Iglesias, F. J. Rogers
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Radiative Opacities and Compton Scattering in Strong Magnetic Fields
The Astrophysical Journal, 1970 Magnetic field effects on Compton scattering and radiative opacity, considering longitudinal and transverse propagation with circular ...
V. M. Canuto
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Radiative opacity of stellar matter.
The Astronomical Journal, 1953 H. Zirin
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Opacity determination in the solar radiative interior [PDF]
Monthly Notices of the Royal Astronomical Society, 1995 J. Richard Elliott
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