Radiative Transfer Simulations of Infrared Dark Clouds [PDF]
Proceedings of the International Astronomical Union, 2010 AbstractThe determination of prestellar core structure is often based on observations of (sub)millimeter dust continuum. However, recently the Spitzer Space Telescope provided us with IR images of many objects not only in emission but also in absorption.
Yaroslav Pavlyuchenkov +3 more
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Optical depth in polarised Monte Carlo radiative transfer [PDF]
, 2019 Context: The Monte Carlo method is the most widely used method to solve radiative transfer problems in astronomy, especially in a fully general 3D geometry. A crucial concept in any Monte Carlo radiative transfer code is the random generation of the next
Baes, Maarten +3 more
core +3 more sources
Is a scaling factor required to obtain closure between measured and modelled atmospheric O4 absorptions? An assessment of uncertainties of measurements and radiative transfer simulations for 2 selected days during the MAD-CAT campaign [PDF]
Atmospheric Measurement Techniques, 2019 In this study the consistency between MAX-DOAS measurements and radiative transfer simulations of the atmospheric O4 absorption is investigated on 2 mainly cloud-free days during the MAD-CAT campaign in Mainz, Germany, in summer 2013.
T. Wagner +33 more
doaj +1 more source
Simulation of SEVIRI infrared channels: a case study from the Eyjafjallajökull April/May 2010 eruption [PDF]
Atmospheric Measurement Techniques, 2013 Infrared satellite images are widely and successfully used to detect and follow atmospheric ash from erupting volcanoes. We describe a new radiative transfer model framework for the simulation of infrared radiances, which can be compared directly with ...
A. Kylling +5 more
doaj +1 more source
Over 500 Days in the Life of the Photosphere of the Type Iax Supernova SN 2014dt
The Astrophysical Journal, 2023 Type Iax supernovae (SNe Iax) are the largest known class of peculiar white dwarf SNe, distinct from normal Type Ia supernovae (SNe Ia). The unique properties of SNe Iax, especially their strong photospheric lines out to extremely late times, allow us to
Yssavo Camacho-Neves +22 more
doaj +1 more source
Atmospheric dynamics of red supergiant stars and Interferometry
, 2007 We developed a 3D pure LTE radiative transfer code to derive observables expected for RSGs, with emphasis on small scale structures, from radiative-hydrodynamic (RHD) simulations of red supergiant stars (RSGs) carried out with CO5BOLD (Freytag et al ...
Chiavassa, A.
core +1 more source
PORT, a CESM tool for the diagnosis of radiative forcing [PDF]
Geoscientific Model Development, 2013 The Parallel Offline Radiative Transfer (PORT) model is a stand-alone tool, driven by model-generated datasets, that can be used for any radiation calculation that the underlying radiative transfer schemes can perform, such as diagnosing radiative ...
A. J. Conley +4 more
doaj +1 more source
A 3D radiative transfer framework IX. Time dependence
, 2012 Context. Time-dependent, 3D radiation transfer calculations are important for the modeling of a variety of objects, from supernovae and novae to simulations of stellar variability and activity.
Baron, E., Hauschildt, P. H., Jack, D.
core +1 more source
Composite biasing in Monte Carlo radiative transfer [PDF]
, 2016 Biasing or importance sampling is a powerful technique in Monte Carlo radiative transfer, and can be applied in different forms to increase the accuracy and efficiency of simulations.
Baes, Maarten +6 more
core +3 more sources
Radiative Transfer Modeling of Simulation and Observational Data [PDF]
Proceedings of the International Astronomical Union, 2010 AbstractRadiative Transfer (RT) is considered to be one of the four Grand Challenges in Computational Astrophysics aside of Astrophysical Fluid Dynamics, N-Body Problems in Astrophysics, and Relativistic Astrophysics. The high dimensionality (7D instead of 4D for MHD) and the underlying integro-differential transport equation have forced coders to ...
Jürgen Steinacker +2 more
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