Computer Science – Performance
Scientific paper
Nov 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002phdt........16r&link_type=abstract
Thesis (PhD). NORTHWESTERN UNIVERSITY, Source DAI-B 63/11, p. 5291, May 2003, 39 pages.
Computer Science
Performance
Scientific paper
We describe SPARO, the Submillimeter Polarimeter for Antarctic Remote Observations. SPARO measures the state of linear polarization of submillimeter radiation from astrophysical sources. When deployed on the Viper telescope at the Amundsen-Scott Station at the South Pole, SPARO has the greatest sensitivity to degree-scale polarized submillimeter emission of any current instrument. We detail similarities between SPARO and prior instruments and highlight specific design issues that arise for the operation of an instrument in the severe weather conditions of the South Pole winter. We report on the cryogenic, electrical, and optical performance of SPARO and the optical performance of the SPARO/Viper system. We present polarimetric observations of the southern molecular cloud NGC 6334 and compare these observations with higher angular resolution submillimeter polarimetric observations of NGC 6334 made at the Caltech Submillimeter Observatory and the James Clerk Maxwell Telescope. Finally, we give our interpretation of these results.
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