Results 41 to 50 of about 487,950 (322)

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, L.G. D'yachkov, M.A. Skowronek, Y. Vitel, H. Van Horn   +4 more
openaire   +1 more source

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, Jianguo Wang, Xuerong Wang, Jinghong Li, Weiyan Zhang   +4 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

Planet migration: self-gravitating radiation hydrodynamical models of protoplanets with surfaces [PDF]

, 2010
We calculate radial migration rates of protoplanets in laminar minimum mass solar nebula discs using three-dimensional self-gravitating radiation hydrodynamical (RHD) models.
Alexander, Alibert, Alibert, Ayliffe, Ayliffe, Balbus, Baruteau, Baruteau, Baruteau, Bate, Bate, Bate, Ben A. Ayliffe, Benz, Benz, Boley, Bryden, Crida, Crida, D'Angelo, D'Angelo, D'Angelo, D'Angelo, De Val-Borro, Goldreich, Ida, Ivanov, Jang-Condell, Klahr, Kley, Kley, Kley, Korycansky, Korycansky, Li, Lodato, Lubow, Lubow, Masset, Masset, Masset, Matthew R. Bate, Mayor, Monaghan, Monaghan, Monaghan, Mordasini, Morohoshi, Morris, Nelson, Nelson, Nelson, Nelson, Nelson, Ogilvie, Paardekooper, Paardekooper, Paardekooper, Paardekooper, Paardekooper, Pepliński, Pepliński, Pierens, Pollack, Price, Price, Shakura, Springel, Syer, Tanaka, Ward, Ward, Whitehouse, Whitehouse, Yu   +74 more
core   +1 more source

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, Tanaka Masaomi, Nishimura Nobuya, Kawaguchi Kyohei, Saito Sei, Domoto Nanae   +5 more
doaj   +1 more source

Analysis of the influence of the plasma thermodynamic regime in the spectrally resolved and mean radiative opacity calculations of carbon plasmas in a wide range of density and temperature

, 2013
In this work the spectrally resolved, multigroup and mean radiative opacities of carbon plasmas are calculated for a wide range of plasma conditions which cover situations where corona, local thermodynamic and non-local thermodynamic equilibrium regimes ...
J. Gil, R. Rodríguez, P. Martel, R. Florido, J. G. Rubiano, M. Mendoza, E. Mínguez   +6 more
semanticscholar   +1 more source

3D Radiative Transfer for Exoplanet Atmospheres. gCMCRT: A GPU-accelerated MCRT Code [PDF]

, 2021
Radiative transfer (RT) is a key component for investigating atmospheres of planetary bodies. With the 3D nature of exoplanet atmospheres being important in giving rise to their observable properties, accurate and fast 3D methods are required to be ...
Elspeth K. H. Lee, J. Wardenier, B. Prinoth, V. Parmentier, S. Grimm, R. Baeyens, L. Carone, D. Christie, R. Deitrick, D. Kitzmann, N. Mayne, M. Roman, B. Thorsbro   +12 more
semanticscholar   +1 more source

The opacity of grains in protoplanetary atmospheres

, 2007
We have computed the size distribution of silicate grains in the outer radiative region of the envelope of a protoplanet evolving according to the scenario of Pollack et al. (1996).
Chokshi, Clayton, Dorschner, Fuchs, Haisch, Hubickyj, Kasten, Khare, Kovetz, M. Podolak, N. Movshovitz, Podolak, Podolak, Pollack, Saumon, van de Hulst, Weaver, Weidenschilling, Wetherill   +18 more
core   +1 more source

Time Dependent Monte Carlo Radiative Transfer Calculations For 3-Dimensional Supernova Spectra, Lightcurves, and Polarization [PDF]

, 2006
We discuss Monte-Carlo techniques for addressing the 3-dimensional time-dependent radiative transfer problem in rapidly expanding supernova atmospheres.
Baron E., Brown J. C., Castor J. I., Cropper M., Cunto W., Daniel J. Y., Daniel Kasen, Hanuschik R. W., Hillier D. J., Hoflich P., Jeffery D. J., Lucy L. B., Lucy L. B., Mazzali P. A., Mazzali P. A., Meikle W. P. S., P. Nugent, Patat F., R. C. Thomas, Thielemann F.-K., Utrobin V., Zhang Q.   +21 more
core   +3 more sources

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
openaire   +1 more source