Astrophysics (Index)About


(C-Band All Sky Survey)
(6 cm survey of the entire sky)

C-BASS (for C-Band All Sky Survey) is an astronomical survey of the whole sky at wavelength 6 cm (frequency 5 GHz) with an angular resolution of better than 1 degree. One specific purpose is to characterize the CMB foreground, other microwave sources that affect CMB observation.

The term C band is for a communications microwave band covering 4-8 GHz. Two telescopes are used for the survey, a 6.1-meter dish in California for the northern hemisphere and a 7.6-meter dish in South Africa for the southern. The name C-BASS is also used to refer to the telescopes. Both are re-used dishes with new, custom instruments. The northern portion of the survey was carried out from 2009 to 2015, and the southern portion begun in 2014 and continuing into 2019.

(microwave,survey,all sky)
Further reading:

Referenced by pages:
Owens Valley Radio Observatory (OVRO)