- Degree Angular Scale Interferometer
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The Degree Angular Scale Interferometer (DASI) was a telescope located in Antarctica. It was a 13-element interferometer operating between 26 and 36 GHz in ten bands. The instrument is similar in design to the Cosmic Background Imager and the Very Small Array. In 2002 the DASI team reported the first detection of polarization anisotropies in the Cosmic Microwave Background.[1]
See also
References
- ^ Leitch, E. M. et al. (dec 2002). "Measurement of polarization with the Degree Angular Scale Interferometer". Nature 420 (6917): 763–771. arXiv:astro-ph/0209476. Bibcode 2002Natur.420..763L. doi:10.1038/nature01271. PMID 12490940.
External links
Cosmic microwave background radiation (CMB) Effects Cosmic variance · Diffusion damping · Sachs–Wolfe effect · Sunyaev–Zel'dovich effect · Recombination · Thomson scattering
Full-sky temperature map taken by NASA's Wilkinson Microwave Anisotropy Probe (WMAP)Space-based
experimentsBalloon
experimentsGround-based
experimentsCoordinates: 90°00′S 139°16′W / 90°S 139.267°W
Categories:- Radio telescopes
- Interferometric telescopes
- Cosmic microwave background experiments
- Astronomy in the Antarctic
- Astronomical observatory stubs
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