Detail Page

written by Richard McCray and Andrew Koelemay
This applet simulates the transfer of radiation through an atmosphere of atoms. The user can control the slab width, the total number of atoms in the slab, the albedo of the atoms and the cross-sections as functions of color. In the applet the user can see where the photons are located at any time. Histograms show the number of photons that have been reflected to the sky, that are still in the slab, and that are transmitted to the ground.

This is part of a larger collection of applets by STEM Colorado focused mostly on topics in astronomy.

Please note that this resource requires at least version 1.4.2_06 of Java.
Subjects Levels Resource Types
- Stars
- Lower Undergraduate
- High School
- Upper Undergraduate
- Instructional Material
= Activity
= Interactive Simulation
Intended Users Formats Ratings
- Learners
- application/java
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Access Rights:
Free access
© 2004 Richard McCray
photons, radiative transfer, stellar interior
Record Cloner:
Metadata instance created August 29, 2008 by Alea Smith
Record Updated:
October 22, 2008 by Chris Irwin
Last Update
when Cataloged:
August 29, 2008
Other Collections:

ComPADRE is beta testing Citation Styles!

Record Link
AIP Format
R. McCray and A. Koelemay, (2004), WWW Document, (
R. McCray and A. Koelemay, STEM Colorado: Radiative Transfer, (2004), <>.
APA Format
McCray, R., & Koelemay, A. (2008, August 29). STEM Colorado: Radiative Transfer. Retrieved February 16, 2019, from
Chicago Format
McCray, Richard, and Andrew Koelemay. STEM Colorado: Radiative Transfer. August 29, 2008. (accessed 16 February 2019).
MLA Format
McCray, Richard, and Andrew Koelemay. STEM Colorado: Radiative Transfer. 2004. 29 Aug. 2008. 16 Feb. 2019 <>.
BibTeX Export Format
@misc{ Author = "Richard McCray and Andrew Koelemay", Title = {STEM Colorado: Radiative Transfer}, Volume = {2019}, Number = {16 February 2019}, Month = {August 29, 2008}, Year = {2004} }
Refer Export Format

%A Richard McCray
%A Andrew Koelemay
%T STEM Colorado: Radiative Transfer
%D August 29, 2008
%O application/java

EndNote Export Format

%0 Electronic Source
%A McCray, Richard
%A Koelemay, Andrew
%D August 29, 2008
%T STEM Colorado: Radiative Transfer
%V 2019
%N 16 February 2019
%8 August 29, 2008
%9 application/java

Disclaimer: ComPADRE offers citation styles as a guide only. We cannot offer interpretations about citations as this is an automated procedure. Please refer to the style manuals in the Citation Source Information area for clarifications.

Citation Source Information

The AIP Style presented is based on information from the AIP Style Manual.

The APA Style presented is based on information from APA Electronic References.

The Chicago Style presented is based on information from Examples of Chicago-Style Documentation.

The MLA Style presented is based on information from the MLA FAQ.

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