Results 31 to 40 of about 124,778 (295)

Simulation of Radiative Transfer Within X-ray Microcalorimeter Absorbers

Journal of Low Temperature Physics, 2022
AbstractWe present Monte Carlo simulations of radiative transfer within the absorbers of X-ray microcalorimeters, utilizing a numerical model for the photon propagation and photon absorption process within the absorber structure. In our model, we include effects of Compton scattering off bound electrons and fluorescence.
M. Lorenz, C. Kirsch, P. Peille, R. Ballhausen, V. Fioretti, S. Lotti, T. Dauser, J. Wilms   +7 more
openaire   +4 more sources

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, Camps, Peter, Peest, Christian, Siebenmorgen, Ralf   +3 more
core   +3 more sources

ARTS, the atmospheric radiative transfer simulator

Journal of Quantitative Spectroscopy and Radiative Transfer, 2005
Abstract ARTS is a modular program that simulates atmospheric radiative transfer. The paper describes ARTS version 1.0, which is applicable in the absence of scattering. An overview over all major parts of the model is given: calculation of absorption coefficients, the radiative transfer itself, and the calculation of Jacobians.
Buehler, Stefan A., Eriksson, P., Kuhn, Thomas, von Engeln, Axel, Verdes, C.   +4 more
openaire   +3 more sources

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, Dmitry Wiebe, Anna Fateeva, Tatiana Vasyunina   +3 more
openaire   +1 more source

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, S. Beirle, N. Benavent, T. Bösch, K. L. Chan, S. Donner, S. Dörner, C. Fayt, U. Frieß, D. García-Nieto, C. Gielen, C. Gielen, D. González-Bartolome, L. Gomez, F. Hendrick, B. Henzing, J. L. Jin, J. Lampel, J. Ma, K. Mies, M. Navarro, E. Peters, E. Peters, G. Pinardi, O. Puentedura, J. Puķīte, J. Remmers, A. Richter, A. Saiz-Lopez, R. Shaiganfar, H. Sihler, M. Van Roozendael, Y. Wang, M. Yela   +33 more
doaj   +1 more source

Multiangle observations of Arctic clouds from FIRE ACE: June 3, 1998, case study [PDF]

, 2001
In May and June 1998 the Airborne Multiangle Imaging Spectroradiometer (AirMISR) participated in the FIRE Arctic Cloud Experiment (ACE). AirMISR is an airborne instrument for obtaining multiangle imagery similar to that of the satellite-borne MISR ...
Ackerman, TP, Davies, R, Gerber, H, King, MD, Marchand, RT, Moroney, C, Muller, J-PAL   +6 more
core   +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, Saurabh W. Jha, Barnabas Barna, Mi Dai, Alexei V. Filippenko, Ryan J. Foley, Griffin Hosseinzadeh, D. Andrew Howell, Joel Johansson, Patrick L. Kelly, Wolfgang E. Kerzendorf, Lindsey A. Kwok, Conor Larison, Mark R. Magee, Curtis McCully, John T. O’Brien, Yen-Chen Pan, Viraj Pandya, Jaladh Singhal, Benjamin E. Stahl, Tamás Szalai, Meredith Wieber, Marc Williamson   +22 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, R. Buras, S. Eckhardt, C. Emde, B. Mayer, A. Stohl   +5 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, J.-F. Lamarque, F. Vitt, W. D. Collins, J. Kiehl   +4 more
doaj   +1 more source