The Astronomy Center has provided educational resources to introductory astronomy educators since 2003. Over the past 20 years, the rapid pace of discovery has rendered some of our linked resources obsolete. Thus, the Astronomy Center will be decommissioned on March 1, 2022. Our highest quality resources will be retained on ComPADRE.org.
written by
Laurence Marschall, Glenn Snyder, P. Richard Cooper, Michael Hayden, and Rhonda Good
educational validator:
HelenMarie Hofman
This lab introduces students to nucleosynthesis through the realistically simulated X-ray spectra of a supernova remnants and the abundances of elements. The exercise lets students control a space-based x-ray telescope and spectrograph to sample four locations in the supernova remnant Cassiopeia A. The spectra must be matched with an interactive program that models the physical composition, temperature, and density in the remnant.
This is part of a larger collection of simulations, Project CLEA.
Please note that this resource requires
at least version 95 of MS-Windows.
<a href="https://www.compadre.org/astronomy/items/detail.cfm?ID=7833">Marschall, L, G. Snyder, P. Cooper, M. Hayden, and R. Good. CLEA: Dying Stars and the Birth of the Elements. August 9, 2008.</a>
L. Marschall, G. Snyder, P. Cooper, M. Hayden, and R. Good, CLEA: Dying Stars and the Birth of the Elements (2006), <http://public.gettysburg.edu/~marschal/clea/Dyingstarslab.html>.
Marschall, L., Snyder, G., Cooper, P., Hayden, M., & Good, R. (2008, August 9). CLEA: Dying Stars and the Birth of the Elements. Retrieved May 13, 2025, from http://public.gettysburg.edu/~marschal/clea/Dyingstarslab.html
Marschall, L, G. Snyder, P. Cooper, M. Hayden, and R. Good. CLEA: Dying Stars and the Birth of the Elements. August 9, 2008. http://public.gettysburg.edu/~marschal/clea/Dyingstarslab.html (accessed 13 May 2025).
Marschall, Laurence, Glenn Snyder, P. Richard Cooper, Michael Hayden, and Rhonda Good. CLEA: Dying Stars and the Birth of the Elements. 2006. 9 Aug. 2008. 13 May 2025 <http://public.gettysburg.edu/~marschal/clea/Dyingstarslab.html>.
@misc{
Author = "Laurence Marschall and Glenn Snyder and P. Richard Cooper and Michael Hayden and Rhonda Good",
Title = {CLEA: Dying Stars and the Birth of the Elements},
Volume = {2025},
Number = {13 May 2025},
Month = {August 9, 2008},
Year = {2006}
}
%A Laurence Marschall %A Glenn Snyder %A P. Richard Cooper %A Michael Hayden %A Rhonda Good %T CLEA: Dying Stars and the Birth of the Elements %D August 9, 2008 %U http://public.gettysburg.edu/~marschal/clea/Dyingstarslab.html %O application/exe
%0 Electronic Source %A Marschall, Laurence %A Snyder, Glenn %A Cooper, P. Richard %A Hayden, Michael %A Good, Rhonda %D August 9, 2008 %T CLEA: Dying Stars and the Birth of the Elements %V 2025 %N 13 May 2025 %8 August 9, 2008 %9 application/exe %U http://public.gettysburg.edu/~marschal/clea/Dyingstarslab.html
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.