backgroundSources

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Computes the expected number of background radio point sources above a specified flux density in a specified field size, based on the formula in the Appendix of Anglada et al. 1998.

Usage:

au.backgroundSources(fluxdensity, fieldDiameter=None, fieldXsize=None,
                      fieldYsize=None, frequency=5):

Inputs:

• fluxdensity: minimum detectable flux density at field center (mJy)
• fieldDiameter or (fieldXsize and fieldYsize): in arcseconds
• frequency: in GHz

Example:

CASA <3>: au.backgroundSources(0.1,fieldXsize=40,fieldYsize=60)
  Out[3]: 0.043981990938511843

-- ToddHunter - 2014-02-06