Table 3

The main polarization experiments, their typical observational frequencies, and the upper limits on the B-mode polarization are illustrated.

Experiments

Years

Pivot frequencies

Upper limits on BB

Dasi [24-26]

2000-2003

26-36 GHz

(2π) ≤ 50(μK)²

Boomerang [168]

2003

145 GHz

/(2π) ≤ 8.6(μK)²

Maxipol [169,170]

2003

140 GHz

/(2π) ≤ 112.3(μK)²

Quad [31-33]

2007

100/150 GHz

/(2π) ≤ 10(μK)²

Cbi [29,30]

2002-2005

26-36 GHz

/(2π) ≤ 3.76(μK)²

Capmap [27,28]

2004-2005

35-46/84-100 GHz

/(2π) ≤ 4.8(μK)²

Wmap [3,4,6]

2001-2006

23-94 GHz

/(2π) ≤ 0.5(μK)²

Giovannini PMC Physics A 2010 4:1   doi:10.1186/1754-0410-4-1