Astronomy and Astrophysics – Astrophysics
Scientific paper
Dec 1997
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997apl%26c..36..387b&link_type=abstract
Astrophysical Letters and Communications, Vol. 36, Nos. 1 - 6, p. 387 - 391
Astronomy and Astrophysics
Astrophysics
1
Galaxy Counts: Methods Of Reduction, Galaxy Counts: Cosmology, Galaxy Evolution: Galaxy Counts
Scientific paper
Using Monte Carlo simulations of galaxy populations, the authors create artificial faint galaxy samples which mimic those obtained by actual observations. They find that isophotal effects alone cannot acount for the discrepancy between the observed steepness and no-evolution models, although these effects could significantly reduce the amount of evolution required and alter the median redshifts. Further development of the simulation software is used to produce simulated CCD frames, taking full account of observational conditions, which may be examined with the same image detection and photometry software as is applied to real observational data. This provides a route from intrinsic galaxy population models to apparent diagnostics (such as number counts) which comprehensively allows for selection effects.
Bristow Paul
Phillipps Steve
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