Very Small Array. Flux density at 33GHz (Cleary+, 2005)

Details Very Small Array. Flux density at 33GHz (Cleary+, 2005) Very Small Array. Flux density at 33GHz (Cleary+, 2005)

Mar 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006ycat..73600340c&link_type=abstract

VizieR On-line Data Catalog: J/MNRAS/360/340. Originally published in: 2005MNRAS.360..340C

Computer Science

Surveys, Radio Sources

Scientific paper

We describe the source subtraction strategy and observations for the extended Very Small Array (VSA), a cosmic microwave background interferometer operating at 33GHz. A total of 453 sources were monitored at 33GHz using a dedicated source subtraction baseline. 131 sources brighter than 20mJy were directly subtracted from the VSA visibility data. Some characteristics of the subtracted sources, such as spectra and variability, are discussed. The 33GHz source counts are estimated from a sample selected at 15GHz. The selection of VSA fields in order to avoid bright sources introduces a bias into the observed counts. This bias is corrected and the resulting source count is estimated to be complete in the flux-density range 20114mJy. The 33GHz source counts are used to calculate a correction to the VSA power spectrum for sources below the subtraction limit.
(1 data file).

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