COMPASS: An Upper Limit on Cosmic Microwave Background Polarization at an Angular Scale of 20

COMPASS is an on-axis 2.6 m telescope coupled to a correlation polarimeter operating at a wavelength of 1 cm. The entire instrument was built specifically for cosmic microwave background (CMB) polarization studies. We report here on observations of 2001 February-April using this system. We set an up...

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Veröffentlicht in:	The Astrophysical journal 2004-08, Vol.610 (2), p.625-634
Hauptverfasser:	Farese, Philip C, Dall’Oglio, Giorgio, Gundersen, Joshua O, Keating, Brian G, Klawikowski, Slade, Knox, Lloyd, Levy, Alan, Lubin, Philip M, O’Dell, Chris W, Peel, Alan, Piccirillo, Lucio, Ruhl, John, Timbie, Peter T
Format:	Artikel
Sprache:	eng
Schlagworte:	Astronomical and space-research instrumentation Astronomy Background radiations Earth, ocean, space Exact sciences and technology Fundamental astronomy and astrophysics. Instrumentation, techniques, and astronomical observations Gravitational radiation detectors mass spectrometers and other instrumentation and techniques Stellar systems. Galactic and extragalactic objects and systems. The universe Unidentified sources and radiation outside the solar system
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Zusammenfassung:	COMPASS is an on-axis 2.6 m telescope coupled to a correlation polarimeter operating at a wavelength of 1 cm. The entire instrument was built specifically for cosmic microwave background (CMB) polarization studies. We report here on observations of 2001 February-April using this system. We set an upper limit on E-mode polarized anisotropies of 1036 mu K super(2) (95% confidence limit) in the l range 93-555.
ISSN:	0004-637X 1538-4357
DOI:	10.1086/421837