Results 11 to 20 of about 124,778 (295)
Optimizing the Resolution of Hydrodynamic Simulations for MCRaT Radiative Transfer Calculations
The Astrophysical Journal, 2023 Despite their discovery about half a century ago, the gamma-ray burst (GRB) prompt emission mechanism is still not well understood. Theoretical modeling of the prompt emission has advanced considerably due to new computational tools and techniques.
Jose Arita-Escalante +2 more
doaj +1 more source
Interference-exact radiative transfer simulations: intracavity transport effects [PDF]
2018 International Conference on Numerical Simulation of Optoelectronic Devices (NUSOD), 2018 Electroluminescent (EL) cooling of semiconductors has received increasing attention in recent years. To optimize the performance of devices intended for EL cooling, special care is needed in minimizing electrical losses resulting from e.g. potential barriers, and optical losses resulting from e.g. parasitic absorption.
Sadi, Toufik +3 more
openaire +2 more sources
The Mass Fractionation of Helium in the Escaping Atmosphere of HD 209458b
The Astrophysical Journal, 2023 The absorption signals of metastable He in HD 209458b and several other exoplanets can be explained via an escaping atmosphere model with a subsolar He/H ratio. The low abundance of helium can be a result of planet formation if there is a small amount of
Lei Xing, Dongdong Yan, Jianheng Guo
doaj +1 more source
Physics informed neural networks for simulating radiative transfer
Journal of Quantitative Spectroscopy and Radiative Transfer, 2021 ISSN:0022 ...
Mishra, Siddhartha, Molinaro, Roberto
openaire +3 more sources
Simulations of galaxy formation with radiative transfer: Hydrogen reionization and radiative feedback [PDF]
Monthly Notices of the Royal Astronomical Society, 2010 We carry out hydrodynamical simulations of galaxy formation that simultaneously follow radiative transfer of hydrogen-ionizing photons, based on the optically-thin variable Eddington tensor approximation as implemented in the {\small GADGET} code. We consider only star-forming galaxies as sources and examine to what extent they can yield a reasonable ...
Petkova, M., Springel, V.
openaire +4 more sources
Simulating Reionization: Character and Observability [PDF]
, 2007 In recent years there has been considerable progress in our understanding of the nature and properties of the reionization process. In particular, the numerical simulations of this epoch have made a qualitative leap forward, reaching sufficiently large ...
Bond, J. Richard +5 more
core +6 more sources
Distribution and Kinematics of H i through Raman He ii Spectroscopy of NGC 6302
The Astrophysical Journal, 2023 The young planetary nebula NGC 6302 is known to exhibit Raman-scattered He ii features at 6545 Å and 4851 Å. These features are formed through inelastic scattering of He ii λλ 1025 and 972 with hydrogen atoms in the ground state, for which the cross ...
Seok-Jun Chang +3 more
doaj +1 more source
RADIATIVE TRANSFER SIMULATIONS OF NEUTRON STAR MERGER EJECTA [PDF]
The Astrophysical Journal, 2013 18 pages, 16 figures, accepted for publication in ApJ, computed light curves are available at http://th.nao.ac.jp/MEMBER/tanaka/nsmerger_lightcurve ...
Tanaka, Masaomi, Hotokezaka, Kenta
openaire +2 more sources
Journal of Advances in Modeling Earth Systems, 2020 One‐dimensional radiative transfer solvers are computationally much more efficient than full three‐dimensional radiative transfer solvers but do not account for the horizontal propagation of radiation and thus produce unrealistic surface irradiance ...
M. A. Veerman +4 more
doaj +1 more source
Remote Sensing, 2023 Developing a machine-learning-based radiative transfer emulator in a weather forecasting model is valuable because it can significantly improve the computational speed of forecasting severe weather events.
Hwan-Jin Song, Soonyoung Roh
doaj +1 more source