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We have developed a new model that uses a cellular approach to calculate radiative transfer of starlight through dusty media. The model is designed to be user friendly enough to be distributed as a tool for use by the general astronomical…

Astrophysics · Physics 2009-09-25 Matthew Trewhella , Barry F. Madore , Leslie Kuchinski

Context: The Monte Carlo method is probably the most widely used approach to solve the radiative transfer problem, especially in a general 3D geometry. The physical processes of emission, absorption, and scattering are easily incorporated…

Astrophysics of Galaxies · Physics 2022-10-19 Maarten Baes , Peter Camps , Kosei Matsumoto

We present infrared luminosity functions and dust mass functions for the EAGLE cosmological simulation, based on synthetic multi-wavelength observations generated with the SKIRT radiative transfer code. In the local Universe, we reproduce…

We investigate the effects of multiple anisotropic light scattering by interstellar dust particles on photometric profiles of disk galaxy models computed using an iterative ray-tracing radiative transfer modeling code. It is shown that…

Astrophysics · Physics 2007-05-23 D. Semionov , V. Vansevicius

Long-slit optical spectra along the major axis of spiral galaxies constitute a main source of information concerning the kinematics of galaxies. In highly inclined spiral galaxies the long-slit spectrum is distorted by dust, which obscures…

Astrophysics · Physics 2009-11-10 Angelos Misiriotis

A crucial ingredient for numerically solving the 3D radiative transfer problem is the choice of the grid that discretizes the transfer medium. Many modern radiative transfer codes, whether using Monte Carlo or ray tracing techniques, are…

Instrumentation and Methods for Astrophysics · Physics 2015-06-17 W. Saftly , M. Baes , P. Camps

The radiative transport of photons through arbitrary three-dimensional (3D) structures of dust is a challenging problem due to the anisotropic scattering of dust grains and strong coupling between different spatial regions. The radiative…

Astrophysics of Galaxies · Physics 2017-07-19 K. D. Gordon , M. Baes , S. Bianchi , P. Camps , M. Juvela , R. Kuiper , T. Lunttila , K. A. Misselt , G. Natale , T. Robitaille , J. Steinacker

We introduce a new model for the spectral energy distribution of galaxies, GRASIL-3D, which includes a careful modelling of the dust component of the interstellar medium. GRASIL-3D is an entirely new model based on the formalism of an…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-18 R. Domínguez-Tenreiro , A. Obreja , G. L. Granato , A. Schurer , P. Alpresa , L. Silva , C. B. Brook , A. Serna

The attenuation of starlight by dust in galactic environments is investigated through models of radiative transfer in a spherical, clumpy ISM. Extinction properties for MW, LMC, and SMC dust types are considered. It is illustrated that the…

Astrophysics of Galaxies · Physics 2016-12-28 Kwang-Il Seon , Bruce T. Draine

In this work we investigate the far-UV to NIR shape of the dust attenuation curve of a sample of IR selected dust obscured (U)LIRGs at z$\sim$2. The spectral energy distributions (SEDs) are fitted with CIGALE, a physically-motivated…

Astrophysics of Galaxies · Physics 2017-08-02 B. Lo Faro , V. Buat , Y. Roehlly , J. Álvarez-Márquez , D. Burgarella , L. Silva , A. Efstathiou

We present Monte Carlo radiative transfer simulations for spiral galaxies modelled as a stellar disk and a two-phase clumpy dust distribution. We divide the volume occupied by the dust into a three-dimensional grid and assign each cell a…

Astrophysics · Physics 2009-10-31 Simone Bianchi , Andrea Ferrara , Jon Davies , Paul Alton

To facilitate the study of black hole fueling, star formation, and feedback in galaxies, we outline a method for treating the radial forces on interstellar gas due to absorption of photons by dust grains. The method gives the correct…

Astrophysics of Galaxies · Physics 2015-06-04 G. S. Novak , J. P. Ostriker , L. Ciotti

We present a model for the interaction between dust and radiation fields in the radiation hydrodynamic code AREPO-RT, which solves the moment-based radiative transfer equations on an unstructured moving mesh. Dust is directly treated using…

Astrophysics of Galaxies · Physics 2019-12-09 Ryan McKinnon , Rahul Kannan , Mark Vogelsberger , Stephanie O'Neil , Paul Torrey , Hui Li

Aims: I have analyzed a sample of seven nearby edge-on galaxies observed in the V and K'-band, in order to infer the properties of the dust distribution. Methods: A radiative transfer model, including scattering, have been used to decompose…

Astrophysics · Physics 2009-11-13 Simone Bianchi

In recent years, the topic of existence and exploration of exocomets has been gaining increasing attention. The asymmetrical decrease in the stellar brightness due to the passage of a comet-like object in front of the star was successfully…

Earth and Planetary Astrophysics · Physics 2024-07-30 I. Luk'yanyk , I. Kulyk , O. Shubina , Ya. Pavlenko , M. Vasylenko , D. Dobrycheva , P. Korsun

In order to examine their relation to the host galaxy, the extraplanar dust of six nearby galaxies are modeled, employing a three dimensional Monte Carlo radiative transfer code. The targets are from the highly-inclined galaxies that show…

Astrophysics of Galaxies · Physics 2016-01-20 Jong-Ho Shinn , Kwang-Il Seon

Dust attenuation shapes the spectral energy distributions of galaxies and any modelling and fitting procedure of their spectral energy distributions must account for this process. We present results of two recent works dedicated at…

Astrophysics of Galaxies · Physics 2019-02-26 Buat , V. , Corre , D. , Boquien , M. , Malek , K

Dust has been detected in high-redshift ($z>5$) galaxies but its origin is still being debated. Dust production in high-redshift galaxies could be dominated by stellar production or by accretion (dust growth) in the interstellar medium.…

Astrophysics of Galaxies · Physics 2021-09-08 Yen-Hsing Lin , Hiroyuki Hirashita , Peter Camps , Maarten Baes

Aims. We present an implementation of an algorithm for 3D time-dependent Monte Carlo radiative transfer. It allows one to simulate temperature distributions as well as images and spectral energy distributions of the scattered light and…

Instrumentation and Methods for Astrophysics · Physics 2022-12-14 A. Bensberg , S. Wolf

We present the first numerical radiative transfer simulation of multiple light scattering in dust configurations containing aligned non-spherical (spheroidal) dust grains. Such models are especially important if one wants to explain the…

Astrophysics · Physics 2009-11-07 S. Wolf , N. V. Voshchinnikov , Th. Henning
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