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International Journal of Mathematical Education in Science and Technology Volume 40, 2009 - Issue 6
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Classroom Notes

Isothermal circumstellar dust shell model for teaching

G. Robinson School of Physical, Environmental and Mathematical Sciences, The University of New South Wales, Australian Defence Force Academy, Canberra, ACT 2600, Australia
,
I.N. Towers School of Physical, Environmental and Mathematical Sciences, The University of New South Wales, Australian Defence Force Academy, Canberra, ACT 2600, AustraliaCorrespondence[email protected]
&
Z. Jovanoski School of Physical, Environmental and Mathematical Sciences, The University of New South Wales, Australian Defence Force Academy, Canberra, ACT 2600, Australia
Pages 795-845 | Received 11 Sep 2008, Published online: 04 Aug 2009
 
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Abstract

We introduce a model of radiative transfer in circumstellar dust shells. By assuming that the shell is both isothermal and its thickness is small compared to its radius, the model is simple enough for students to grasp and yet still provides a quantitative description of the relevant physical features. The isothermal model can be used in a classroom setting as an aid to improve student's understanding of absorption and emission phenomena.

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