QUaD
A photograph of the QUaD telescope inside its groundshield taken from a crane above the telescope. | |
Alternative names |
QUEST at DASI |
---|---|
Observatory |
Amundsen–Scott South Pole Station |
Location(s) | Antarctic Treaty area |
Coordinates |
90°00′S 139°16′W / 90°S 139.27°WCoordinates: 90°00′S 139°16′W / 90°S 139.27°W |
Telescope style |
Cosmic microwave background experiment Radio telescope |
Location of QUaD | |
QUaD,[1] an acronym for QUEST at DASI, was a ground-based cosmic microwave background (CMB) polarization experiment at the South Pole. QUEST (Q and U Extragalactic Sub-mm Telescope) was the original name attributed to the bolometer detector instrument, while DASI is a famous CMB interferometry experiment credited with the first detection of CMB polarization. QUaD used the existing DASI mechanical infrastructure but replaced the DASI interferometric array with a bolometer detector at the end of a cassegrain optical system. The mount has housed the Keck Array since 2011.
See also
Wikimedia Commons has media related to QUaD. |
References
- ↑ QUaD collaboration (2008). "First season QUaD CMB temperature and polarization power spectra". The Astrophysical Journal. 674 (2008): 22–28. arXiv:0705.2359. Bibcode:2008ApJ...674...22A. doi:10.1086/524922.
External links
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