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The distribution of cold dust within the galaxy

Davies, Jonathan Ivor, Trewhella, M. and Jones, H. 1996. The distribution of cold dust within the galaxy. Presented at: International Conference on “Cold Dust and Galaxy Morphology, Johannesburg, South Africa, 22–26 January 1996. Published in: Block, David L. and Greenberg, J. Mayo eds. The Distribution of Cold Dust within the Galaxy:Proceedings of the International Conference on “Cold Dust and Galaxy Morphology” held in Johannesburg, South Africa, January 22–26, 1996. Astrophysics and Space Science Library (209) Netherlands: Springer, pp. 525-527. 10.1007/978-94-009-0335-7_67

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Radiative transfer models of galaxies using exponentially distributed stars and dust have been used extensively to interpret surface brightness inclination tests, galaxy colour gradients, localised extinction and the far infrared (FIR) emission. The Standard Model (SM) used has been obtained mainly from observations of our Galaxy (extinction measures to stars and IRAS). Within the SM the generally excepted values for the vertical z and radial r dust scalelengths are about 0.13 and 3.5 kpc respectively. In this paper we describe how we have tested the SM using the emission from cold dust as measured by COBE (DIRBE). We have created all sky 140 and 240μ surface brightness maps from the DIRBE annual averaged sky maps. For references to the work described in this paper please consult ’The Opacity of Spiral Disks’, Proc. NATO ARW Cardiff July 1994, Ed. J. Davies and D. Burstein.

Item Type: Conference or Workshop Item (Paper)
Date Type: Publication
Status: Published
Schools: Physics and Astronomy
Subjects: Q Science > QB Astronomy
Publisher: Springer
ISBN: 9789401066372
ISSN: 0067-0057
Last Modified: 04 Jun 2017 08:25

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