Astronomy and Astrophysics – Astronomy
Scientific paper
Jan 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aas...21349204g&link_type=abstract
American Astronomical Society, AAS Meeting #213, #492.04; Bulletin of the American Astronomical Society, Vol. 41, p.472
Astronomy and Astrophysics
Astronomy
Scientific paper
In order to characterize the center-to-limb and latitudinal variation of the polarization of the He I 10830 Å line we observed the limb of the sun at several position angles using the Scatter-Free Observatory for Limb Active Regions and Coronae (SOLARC), an imaging spectropolarimeter located on the summit of Haleakala, Maui. The data was reduced and analyzed to produce profiles of the magnitude of the Stokes Q/I and U/I signals as a function of latitude and solar radius. Modeling of the observed profiles should allow us to detect whether the observed linear polarization signal is due entirely to scattering polarization or possibly includes absorptively polarized light transmitted through an optically pumped gas. This work was conducted as part of a Research Experience for Undergraduates (REU) position at the University of Hawaii's Institute for Astronomy and funded by the NSF
Goldbaum Nathan Jonathan
Kuhn Jeff R.
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