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We present benchmark problems and solutions for the continuum radiative transfer (RT) in a 2D disk configuration. The reliability of three Monte-Carlo and two grid-based codes is tested by comparing their results for a set of well-defined…

Astrophysics · Physics 2009-11-10 I. Pascucci , S. Wolf , J. Steinacker , C. P. Dullemond , Th. Henning , G. Niccolini , P. Woitke , B. Lopez

We discuss the current development of MC/DC (Monte Carlo Dynamic Code). MC/DC is primarily designed to serve as an exploratory Python-based MC transport code. However, it seeks to offer improved performance, massive scalability, and backend…

Computational Physics · Physics 2023-05-15 Ilham Variansyah , J. P. Morgan , Jordan Northrop , Kyle E. Niemeyer , Ryan G. McClarren

We present a code for generating synthetic SEDs and intensity maps from Smoothed Particle Hydrodynamics simulation snapshots. The code is based on the Lucy (1999) Monte Carlo Radiative Transfer method, i.e. it follows discrete luminosity…

Instrumentation and Methods for Astrophysics · Physics 2016-08-03 O. Lomax , A. P. Whitworth

Anomalous radiative transfer (ART) theory is a generalization of classical radiative transfer theory. The present tutorial wants to show how Monte Carlo (MC) codes describing photons transport in anomalous media can be implemented. It is…

Computational Physics · Physics 2022-06-02 Tiziano Binzoni , Fabizio Martelli

We have developed a model which aims to reproduce observational data of many kinds related to cosmic-ray (CR) origin and propagation: direct measurements of nuclei, antiprotons, electrons and positrons, gamma-rays, and synchrotron…

Astrophysics · Physics 2009-10-31 I. V. Moskalenko , A. W. Strong

newASTROGAM is a breakthrough mission concept for the study of the non-thermal Universe from space with gamma rays in the energy range from 15 keV to 3 GeV. It is based on advanced space-proven detector technologies, which will achieve…

Instrumentation and Methods for Astrophysics · Physics 2025-07-14 D. Berge , M. N. Mazziotta , M. Tavani , V. Tatischeff , U. Oberlack

The current great precision on cosmic-ray (CR) spectral data allows us to precisely test our simple models on propagation of charged particles in the Galaxy. However, our studies are severely limited by the uncertainties related to cross…

High Energy Physics - Phenomenology · Physics 2022-07-05 Pedro De la Torre Luque , Mario Nicola Mazziotta

In this paper we present two efficient implementations of the diffusion approximation to be employed in Monte Carlo computations of radiative transfer in dusty media of massive circumstellar disks. The aim is to improve the accuracy of the…

Instrumentation and Methods for Astrophysics · Physics 2009-11-13 M. Min , C. P. Dullemond , C. Dominik , A. de Koter , J. W. Hovenier

A fast, simple to use Monte Carlo based event generator is presented which is intended to facilitate simulation studies and the development of analysis software for the Solenoidal Tracker at RHIC (Relativistic Heavy Ion Collider) (STAR)…

Nuclear Experiment · Physics 2007-05-23 R. L. Ray , R. S. Longacre

COsmic Ray SImulations for KAscade) is a program for detailed simulation of extensive air showers initiated by high energy cosmic ray particles in the atmosphere, and is used today by almost all the major instruments that aim at measuring…

Instrumentation and Methods for Astrophysics · Physics 2020-06-29 Luisa Arrabito , Konrad Bernlöhr , Johan Bregeon , Matthieu Carrère , Adnane Khattabi , Philippe Langlois , David Parello , Guillaume Revy

Recently, with the advances in computational speed and availability there has been a growth in the number and resolution of fully 3-D hydrodynamical simulations. However, all of these simulations are purely hydrodynamical and there has been…

Astrophysics · Physics 2009-11-10 E. Baron , Peter H. Hauschildt

In this paper, we proposed a new Monte Carlo radiative transport (MCRT) scheme, which is based completely on the Neumann series solution of Fredholm integral equation. This scheme indicates that the essence of MCRT is the calculation of…

Computational Physics · Physics 2022-11-09 Xiao-lin Yang , Jian-cheng Wang , Chu-yuan Yang

In order to meet the challenges of new accelerator and space projects and further improve modelling of radiation effects in microscopic objects, heavy-ion interaction and transport physics have been recently incorporated into the MARS15…

Nuclear Theory · Physics 2008-11-26 N. V. Mokhov , K. K. Gudima , S. G. Mashnik , I. L. Rakhno , S. I. Striganov

We study the evolution of ionization fronts around the first proto-galaxies by using high resolution numerical cosmological (Lambda+CDM model) simulations and Monte Carlo radiative transfer methods. We present the numerical scheme in detail…

Astrophysics · Physics 2009-10-31 B. Ciardi , A. Ferrara , S. Marri , G. Raimondo

Gamma-rays, the most energetic photons, carry information from the far reaches of extragalactic space with minimal interaction or loss of information. They bring messages about particle acceleration in environments so extreme they cannot be…

High Energy Astrophysical Phenomena · Physics 2022-03-15 Kristi Engel , Jordan Goodman , Petra Huentemeyer , Carolyn Kierans , Tiffany R. Lewis , Michela Negro , Marcos Santander , David A. Williams , Alice Allen , Tsuguo Aramaki , Rafael Alves Batista , Mathieu Benoit , Peter Bloser , Jennifer Bohon , Aleksey E. Bolotnikov , Isabella Brewer , Michael S. Briggs , Chad Brisbois , J. Michael Burgess , Eric Burns , Regina Caputo , Gabriella A. Carini , S. Bradley Cenko , Eric Charles , Stefano Ciprini , Valerio D'Elia , Tansu Daylan , James Distel , Axel Donath , Wade Duvall , Henrike Fleischhack , Corinne Fletcher , Wen Fe Fong , Dario Gasparrini , Marco Giardino , Adam Goldstein , Sean Griffin , J. Eric Grove , Rachel Hamburg , J. Patrick Harding , Jeremy Hare , Boyan Hristov , C. Michelle Hui , Tess Jaffe , Pete Jenke , Oleg Kargaltsev , Christopher M. Karwin , Matthew Kerr , Dongsung Kim , Daniel Kocevski , John Krizmanic , Ranjan Laha , Niccolo Di Lalla , Jason Legere , Cristina Leto , Richard Leys , Fabrizio Lucarelli , Israel Martinez-Castellanos , Alessandro Maselli , M. Nicola Mazziotta , Mark McConnell , Julie McEnery , Jessica Metcalfe , Manuel Meyer , Alexander A. Moiseev , Reshmi Mukherjee , Michela Negro , Keiichi Ogasawara , Nicola Omodei , Ivan Peric , Jeremy S. Perkins , Matteo Perri , Carlotta Pittori , Gianluca Polenta , Daniel Poulson , Robert Preece , Giacomo Principe , Judith L. Racusin , Oliver Roberts , Nicholas L. Rodd , Peter Shawhan , Thomas Shutt , Clio Sleator , Alan Smale , John Smedley , Jacob R. Smith , Jay Tasson , Peter Teuben , John Tomsick , Peter Veres , Francesco Verrecchia , Zorawar Wadiasingh , Colleen A. Wilson-Hodge , Joshua Wood , Richard S. Woolf , Hui Yang , Bing Zhang , Haocheng Zhang , Andreas Zoglauer

Classical novae produce radioactive nuclei which are emitters of gamma-rays in the MeV range. Some examples are the lines at 478 and 1275 keV (from 7Be and 22Na) and the positron-electron annihilation emission, with the 511 keV line and a…

High Energy Astrophysical Phenomena · Physics 2013-05-06 M. Hernanz

Radiation transport codes are often used in astrophysics to construct spectral models. In this work we demonstrate how producing these models for a time series of data can provide unique information about supernovae (SNe). Unlike previous…

High Energy Astrophysical Phenomena · Physics 2020-02-05 Chris Ashall , Paolo Mazzali

Cosmic rays (CRs) are ubiquitous in the interstellar medium (ISM) of nearby galaxies, but many of their properties are not well-constrained. Gamma-ray observations provide a powerful tool in this respect, allowing us to constrain both the…

High Energy Astrophysical Phenomena · Physics 2023-07-19 Maria Werhahn , Philipp Girichidis , Christoph Pfrommer , Joseph Whittingham

We present JEKYLL, a new code for modelling of supernova (SN) spectra and lightcurves based on Monte-Carlo (MC) techniques for the radiative transfer. The code assumes spherical symmetry, homologous expansion and steady state for the…

Solar and Stellar Astrophysics · Physics 2018-12-12 M. Ergon , C. Fransson , A. Jerkstrand , C. Kozma , M. Kromer , K. Spricer

Ionising feedback from massive stars dramatically affects the interstellar medium local to star forming regions. Numerical simulations are now starting to include enough complexity to produce morphologies and gas properties that are not too…

Instrumentation and Methods for Astrophysics · Physics 2015-12-23 D. A. Hubber , B. Ercolano , J. Dale