English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

AIMS: I present the Monte Carlo radiative transfer code TRADING (Transfer ofRAdiation through Dust In Galaxies). The code computes self-consistently theextinction of radiation in a dusty medium (including absorption and scattering)and the dust emission. METHODS: A binary-tree adaptive grid is used for thedescription of the dust distribution. Dust radiation is computed at thermalequilibrium or under stochastic heating condition, for a distribution of grainsof different radii and materials. The code is applied to the case of a clumpygalactic disk, including both diffuse dust and a distribution of sphericalclouds modelled on the GMCs of local galaxies. Diffuse and localised sources ofstarlight are used, with independent spectra. RESULTS: A model is provided forthe edge-on galaxy NGC 891. The SED of the galaxy from the UV to the submm/mmrange can be well reproduced by: a bulge/disk configuration of old starstogether with an extended dust disk, as suggested by the analysis ofoptical/near-infrared images; a clumpy dust distribution of the same mass asthe diffuse dust disk, together with a UV emitting component, half of which inthe form of a diffuse disk and half in sources embedded in clouds. In total, itis found that about 35% of the bolometric radiation is absorbed (and emitted)by dust; and that absorption of starlight from the old population contributesto about 60% of the dust emission. A significant component of the dust emissionfrom clouds is due to absorption of diffuse radiation. Radial profiles of dustemission in a clumpy disk are almost independent of the wavelength, with theexception of the wavelength range on the Wien side of the thermal equilibriumpeak.

Dust Extinction and Emission in a Clumpy Galactic Disk. An Application of the Radiative Transfer Code TRADING