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|Title: ||The Australia telescope search for cosmic microwave background anisotropy|
|Authors: ||Subrahmanyan, Ravi|
Kesteven, Michael J.
|Keywords: ||TECHNIQUES: INTERFEROMETRIC,|
COSMIC MICROWAVE BACKGROUND,
RADIO CONTINUUM: GENERAL
|Issue Date: ||Aug-1998 |
|Publisher: ||Blackwell Publishing for the Royal Astronomical Society|
|Citation: ||Monthly Notices of the Royal Astronomical Society, 1998, Vol.298, p1189-1197|
|Abstract: ||In an attempt to detect cosmic microwave background (CMB) anisotropy on arcmin scales, we have made an 8.7-GHz image of a sky region with a resolution of 2 arcmin and high surface brightness sensitivity using the Australia Telescope Compact Array (ATCA) in an ultracompact configuration. The foreground discrete-source confusion was estimated from observations with higher resolution at the same frequency and in a scaled array at a lower frequency. Following the subtraction of the foreground confusion, the field shows no features in excess of the instrument noise. This limits the CMB anisotropy flat-band power to Q_flat<23.6muK with 95 per cent confidence; the ATCA filter function (which is available at the website www.atnf.csiro.au/Research/cmbr/cmbr_atca.html) F_l in multipole l-space peaks at l_eff=4700 and has half-maximum values at l=3350 and 6050.|
|Description: ||Sorry, the full text of this article is not available here. Please click on the alternative location to access it.|
|Alternative Location: ||http://adsabs.harvard.edu/cgi-bin/bib_query?1998MNRAS.298.1189S|
|Copyright: ||(1998) Royal Astronomical Society|
|Appears in Collections:||Research Papers (A&A)|
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