Parallel Implementation of the PHOENIX Generalized Stellar Atmosphere Program [PDF]
, 1996 We describe the parallel implementation of our generalized stellar atmosphere and NLTE radiative transfer computer program PHOENIX. We discuss the parallel algorithms we have developed for radiative transfer, spectral line opacity, and NLTE opacity and ...
Baron E. +5 more
core +3 more sources
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
doaj +1 more source
On the influence of opacity variation on spatial structure of radiative shocks [PDF]
High Energy Density Physics, 2011 We provide a theoretical analysis of Radiative Shocks, defined as supercritical shocks accompanied by an ionization wave in front of the density jump. In particular, we look at the influence of opacity variation with temperature and photon energy on spatial structure of radiative shocks, with a view to understanding a split precursor feature observed ...
Busquet, Michel +2 more
openaire +4 more sources
Observational properties of peculiar core-collapse super-novae producing r-process elements [PDF]
EPJ Web of Conferences, 2022 We investigate the effects of r-process elements on the electromagnetic wave emission from peculiar core-collapse supernovae. We perform a series of radiative transfer simulations based on one-dimensional hydrodynamical explosion models. Varying the mass
Hasegawa Tatsuki +5 more
doaj +1 more source
The Inhomogeneity Effect. I. Inhomogeneous Surface and Atmosphere Accelerate Planetary Cooling
The Astrophysical Journal, 2023 We propose a general principle that under radiative-convective equilibrium, the spatial and temporal variations in a planet’s surface and atmosphere tend to increase its cooling.
Xi Zhang
doaj +1 more source
Improvements to Stellar Structure Models, Based on a Grid of 3D Convection Simulations. I. $T(\tau)$-Relations [PDF]
, 2014 Relations between temperature, T, and optical depth, tau, are often used for describing the photospheric transition from optically thick to optically thin in stellar structure models.
Asplund, Martin +4 more
core +1 more source
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
openalex +3 more sources
Generation of a sharp density increase in radiation transport between high-Z and low-Z plasmas
Matter and Radiation at Extremes, 2016 A sharp density increase (referred to as density incrustation) of the Au plasmas in the radiative cooling process of high-Z Au plasmas confined by low-Z CH plasmas is found through the radiative hydrodynamic simulations.
Guangwei Meng +4 more
doaj +1 more source
Opacity Project data on CD for mean opacities and radiative accelerations [PDF]
Monthly Notices of the Royal Astronomical Society: Letters, 2005 4 pages, 2 figures, submitted to ...
openaire +4 more sources
Radiative transfer and the energy equation in SPH simulations of star formation [PDF]
, 2007 We introduce and test a new and highly efficient method for treating the thermal and radiative effects influencing the energy equation in SPH simulations of star formation.
A. P. Whitworth +45 more
core +3 more sources