Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 2000
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000mnras.319..591w&link_type=abstract
Monthly Notices of the Royal Astronomical Society, Volume 319, Issue 2, pp. 591-605.
Astronomy and Astrophysics
Astronomy
2
Techniques: Image Processing, Galaxies: Clusters: General, Galaxies: Luminosity Function, Mass Function
Scientific paper
It is evident that considerable information exists in astronomical data below the threshold for the detection of individual sources (perhaps set for a `5σ' total detection, or for isophotal detection thresholds of `2σ' above the sky background), and that such information, if descriptive of an underlying population of objects characterized by a relatively small parameter set, could in principle be used to set constraints on these parameters. We therefore derive a general theoretical framework for fluctuation analysis (after the radio astronomers' `P(D)' analysis) of optical imaging data on faint galaxy fields, in particular; on fields containing rich clusters of galaxies, in an attempt to determine the Schechter luminosity function of the dwarf galaxies that dominate the statistics at this magnitude range.
Phillipps Steven
Windridge David
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