Bibcode
Cleary, K. A.; Taylor, A. C.; Waldram, E.; Battye, R. A.; Dickinson, C.; Davies, R. D.; Davis, R. J.; Genova-Santos, R.; Grainge, K.; Jones, M. E.; Kneissl, R.; Pooley, G. G.; Rebolo, R.; Rubino-Martin, J. A.; Saunders, R. D. E.; Scott, P. F.; Slosar, A.; Titterington, D.; Watson, R. A.
Referencia bibliográfica
VizieR On-line Data Catalog: J/MNRAS/360/340. Originally published in: 2005MNRAS.360..340C
Advertised on:
11
2009
Número de citas
0
Número de citas referidas
0
Descripción
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).