10-GHz Tenerife cosmic microwave background observations at 8 deg resolution and their analysis using a new maximum entropy method

Jones, A. W.; Hancock, S.; Lasenby, A. N.; Davies, R. D.; Gutiérrez, C. M.; Rocha, G.; Watson, R. A.; Rebolo, R.
Bibliographical reference

Monthly Notices of the Royal Astronomical Society, vol. 294, p. 582

Advertised on:
3
1998
Description
The complete set of data from the Tenerife 10-GHz (8-deg FWHM) twin-horn, drift scan experiment is described. These data are affected by both long-term atmospheric baseline drifts and short-term noise. A new maximum entropy procedure, utilizing the time invariance and spatial continuity of the astronomical signal, is used to achieve a clean separation of these effects from the astronomical signal and to deconvolve the effects of the beam-switching. We use a fully positive/negative algorithm to produce two-dimensional maps of the intrinsic sky fluctuations. Known discrete sources and Galactic features are identified in the deconvolved map. The data from the 10-GHz experiment, after baseline subtraction with the MEM, are then analyzed using conventional techniques, and new constraints on Galactic emission are made.