Results 31 to 40 of about 197,703 (285)
On the importance of inner-shell transitions for opacity calculations [PDF]
, 2003 For high temperatures and densities, stellar opacities obtained from the Opacity Project (OP) were smaller than those obtained from the OPAL project. Iglesias and Rogers (1995 Astrophys. J.
Seaton, M.J., Badnell, N.R.
core +2 more sources
Opacities and Atomic Diffusion
Galaxies, 2023 Opacity is a fundamental quantity for stellar modeling, and it plays an essential role throughout the life of stars. After gravity drives the collapse of interstellar matter into a protostar, the opacity determines how this matter is structured around ...
Georges Alecian, Morgan Deal
doaj +1 more source
On radiative opacities of dense plasmas
Physica B: Condensed Matter, 1996 Abstract Besides advanced atomic data, the strong coupling effects are the key-stones for true radiative opacities and for the proper description of energy transport in dense matter. These opacities, which are sensitive to the ‘windows’ in absorption spectra, are discussed briefly in terms of strongly coupled plasmas (SCP) dielectric functions.
Yu.K. Kurilenkov +4 more
openaire +1 more source
Radiative forcing since preindustrial times due to ozone change in the troposphere and the lower stratosphere [PDF]
, 2006 Changes in atmospheric ozone have occurred since the preindustrial era as a result of increasing anthropogenic emissions. Within ACCENT, a European Network of Excellence, ozone changes between 1850 and 2000 are assessed for the troposphere and the lower ...
Isaksen, I S A +22 more
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Opacities for the solar radiative interior
The Astrophysical Journal, 1991 Opacities for the solar radiative interior are computed and compared to previous calculations. A significant enhancement of the Rosseland mean opacity near the bottom of the convection zone is reported when compared to the Los Alamos Astrophysical Opacity Library. The discrepancy is attributed mainly to the equation of state.
C. A. Iglesias, F. J. Rogers
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OPserver: interactive online computations of opacities and radiative accelerations [PDF]
Monthly Notices of the Royal Astronomical Society, 2007 5 pages, 1 ...
Mendoza, Claudio +10 more
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Photoejection from Various Systems and Radiative-Rate Coefficients
Atoms, 2022 Photoionization or photodetachment is an important process. It has applications in solar- and astrophysics. In addition to accurate wave function of the target, accurate continuum functions are required.
Anand K. Bhatia
doaj +1 more source
A systematic study on 2p → 3d radiative opacity of lowly charged Cu plasmas
AIP Advances, 2021 The L-shell radiative opacity of lowly charged Cu plasmas is investigated using a detailed level accounting method. The transmission spectra are compared with a recent experiment at ∼16 eV and 0.005 g/cm3, and good agreement is observed. For a systematic
Wenhang Yu +6 more
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Helioseismic Tests of Radiative Opacities [PDF]
AIP Conference Proceedings, 2002 During the past fifteen years, thousands of solar acoustic oscillation modes have been measured to remarkable precision, in many cases to within 0.01%. These frequencies have been used to infer the interior structure of the sun and test the physical input to solar models. Here we summarize the procedures, input physics and assumptions for calculating a
openaire +1 more source
A numerical strategy for radiative transfer problems with higly oscillating opacities [PDF]
Applied Mathematics and Computation, 2013 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Julien Mathiaud, Francesco Salvarani
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