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written by Dan Chamarro and Carl Akerlof
The basic goal of this experiment is the determination of the solar surface temperature from the relative intensities of the spectrum sampled at a number of wavelengths from 450 to 880 nm. The sampling is determined by a set of broadband interference filters that modulate the light intensity measured by the photocurrent in a reverse biased silicon diode. If the detailed characteristics of the filters and photodiode were all initially well known, a single set of measurements of sunlight through the filter set would suffice. In the absence of such information, the light from a tungsten lamp at different temperatures will be used to establish the appropriate calibrations. In addition, sunlight is also reddened by the atmosphere, which differentially absorbs the blue end of the spectrum. This effect can be corrected by measuring the spectral intensities as a function of zenith angle. Finally, least squares techniques determine the solar temperature by modeling the data with the Planck spectral distribution function. The experimental setup was developed by Professor Carl Akerlof at The University of Michigan.

The experiment was performed during the Blackbody Radiation and the Solar Surface Temperature workshop at the 2009 Topical Conference on Advanced Laboratories.
2009 Topical Conference on Advanced Laboratories
Part of the Sessions V, VII, XI, XIII - Parallel workshop series
Ann Arbor, MI: July 23-25, 2009
Subjects Levels Resource Types
Astronomy
- The Sun
Optics
- Photometry
= Blackbodies
Thermo & Stat Mech
- Thermal Properties of Matter
= Temperature
- Lower Undergraduate
- Upper Undergraduate
- Instructional Material
= Laboratory
Material Category Formats Ratings
- Lab Manual
- application/pdf
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© 2009 Dan Chamarro and Carl Akerlof
Record Creator:
Metadata instance created May 30, 2012 by Lyle Barbato
Record Updated:
June 6, 2012 by Ramon Torres-Isea
Last Update
when Cataloged:
July 25, 2009
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AIP Format
D. Chamarro and C. Akerlof, presented at the 2009 Topical Conference on Advanced Laboratories, Ann Arbor, MI, 2009, WWW Document, (http://www.compadre.org/Repository/document/ServeFile.cfm?ID=12026&DocID=2891).
AJP/PRST-PER
D. Chamarro and C. Akerlof, Blackbody Radiation and the Solar Photosphere Temperature presented at the 2009 Topical Conference on Advanced Laboratories, Ann Arbor, MI, 2009, <http://www.compadre.org/Repository/document/ServeFile.cfm?ID=12026&DocID=2891>.
APA Format
Chamarro, D., & Akerlof, C. (2009, July 23-25). Blackbody Radiation and the Solar Photosphere Temperature. Paper presented at 2009 Topical Conference on Advanced Laboratories, Ann Arbor, MI. Retrieved April 16, 2014, from http://www.compadre.org/Repository/document/ServeFile.cfm?ID=12026&DocID=2891
Chicago Format
Chamarro, Dan, and Carl Akerlof. "Blackbody Radiation and the Solar Photosphere Temperature." Paper presented at the 2009 Topical Conference on Advanced Laboratories, Ann Arbor, MI, July 23-25, 2009. http://www.compadre.org/Repository/document/ServeFile.cfm?ID=12026&DocID=2891 (accessed 16 April 2014).
MLA Format
Chamarro, Dan, and Carl Akerlof. "Blackbody Radiation and the Solar Photosphere Temperature." 2009 Topical Conference on Advanced Laboratories. Ann Arbor, MI: 2009. of Sessions V, VII, XI, XIII - Parallel workshop. 16 Apr. 2014 <http://www.compadre.org/Repository/document/ServeFile.cfm?ID=12026&DocID=2891>.
BibTeX Export Format
@inproceedings{ Author = "Dan Chamarro and Carl Akerlof", Title = {Blackbody Radiation and the Solar Photosphere Temperature}, BookTitle = {2009 Topical Conference on Advanced Laboratories}, Address = {Ann Arbor, MI}, Series = {Sessions V, VII, XI, XIII - Parallel workshop}, Month = {July 23-25}, Year = {2009} }
Refer Export Format

%A Dan Chamarro
%A Carl Akerlof
%T Blackbody Radiation and the Solar Photosphere Temperature
%S Sessions V, VII, XI, XIII - Parallel workshop
%D July 23-25 2009
%C Ann Arbor, MI
%U http://www.compadre.org/Repository/document/ServeFile.cfm?ID=12026&DocID=2891
%O 2009 Topical Conference on Advanced Laboratories
%O July 23-25
%O application/pdf

EndNote Export Format

%0 Conference Proceedings
%A Chamarro, Dan
%A Akerlof, Carl
%D July 23-25 2009
%T Blackbody Radiation and the Solar Photosphere Temperature
%B 2009 Topical Conference on Advanced Laboratories
%C Ann Arbor, MI
%S Sessions V, VII, XI, XIII - Parallel workshop
%8 July 23-25
%U http://www.compadre.org/Repository/document/ServeFile.cfm?ID=12026&DocID=2891


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