Results 291 to 300 of about 35,353 (312)

Acoustic modes in M67 cluster stars trace deepening convective envelopes. [PDF]

Nature
Reyes C, Stello D, Ong J, Lindsay C, Hon M, Bedding TR.   +5 more
europepmc   +1 more source

Opacity Treatments for Thermal Radiative Transport

Robert B. Lowrie
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V3101 Cyg: A Cataclysmic Variable Born with a Brown Dwarf Donor

Ramirez S, Gänsicke B, Sahu S, Belloni D, Pala A, Koester D, Toloza O, Lagos-Vilches F.   +7 more
europepmc   +1 more source

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Opacity and radiative power losses calculations

High Energy Density Physics, 2009
In this contribution we present results on opacity and radiative power losses in laser-produced plasmas. We focus our attention on the inner shell transition array 1s-2p in an aluminum plasma. At high densities, electron, Doppler and ion Stark broadening play a role in line merging.
Benredjem, D., Calisti, A., Mosse, C.
openaire   +2 more sources

Radiative opacities for stellar envelopes

Physica Scripta, 1995
Recent advances in the field of opacity calculations for stellar envelopes are summarized. The methods used and the results obtained in the last decade by two independent groups are discussed briefly. Some of the important effects of the new data on astrophysical studies are outlined.
openaire   +1 more source

High-order multipole transitions in radiative opacities

Journal of Quantitative Spectroscopy and Radiative Transfer, 2006
Abstract The opacity code CASSANDRA, developed at AWE, has recently been modified to include all electric and magnetic multipole transitions of up to multipolarity L = 5 in both the bound–bound and bound–free spectra. It is found that the inclusion of these transitions increases the Rosseland mean opacity of moderate-Z elements by a few ...
L.M. Upcraft, J.W.O. Harris, B.J.B. Crowley   +2 more
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Opacity measurements of a radiatively heated boron sample

Journal of Quantitative Spectroscopy and Radiative Transfer, 1997
Abstract A preliminary measurement of the opacity of a thin boron foil radiatively heated at moderate temperatures (5–20 eV) in conditions near local-thennodynamic-equilibrium (LTE) are reported. The opacity of a 0.37 μm thick boron sample has been measured in the K-shell range (40–60 A) using a 5000 l mm −1 transmission grating.
H. Merdji, T. Miβalla, F. Gilleron, C. Chenais-Popovics, J.C. Gauthier, P. Renaudin, S. Gary, J. Bruneau   +7 more
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Scaling law of radiative opacities for ICF elements

Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2001
info:eu-repo/semantics ...
Mínguez, E., Ruíz Pablos, Rosa María, Martel, P., Gil, J.M., Rubiano, J.G., Rodríguez, R.   +5 more
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Radiative opacity due to the red system of CN

Journal of Quantitative Spectroscopy and Radiative Transfer, 1972
Abstract Recent observational and theoretical work has indicated that CN may play a major role in forming the spectrum and in fixing the thermal structure in a wide variety of cool stellar atmospheres. As the first step in investigating that role, we have calculated straight mean absorption coefficients over intervals of 100 cm -1 for the red system
Hollis R. Johnson, Irene R. Marenin, Stephan D. Price   +2 more
openaire   +1 more source