Astronomy and Astrophysics – Astronomy
Scientific paper
Jul 1993
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993mnras.263..360r&link_type=abstract
Monthly Notices of the Royal Astronomical Society, Vol. 263, NO.2/JUL15, P. 360, 1993
Astronomy and Astrophysics
Astronomy
88
Scientific paper
We investigate the angular two-point correlation functions, ω(θ), for a sample of 4540 faint galaxies observed in the blue passband to a magnitude limit B_ccd_ = 25.0 and for a sample of 3627 galaxies observed in the red passband to R_ccd_ = 23.5. Our results are in reasonable agreement with those from earlier photographic surveys to B ~ 24 and R ~ 23. It is found that, for both the blue-selected and the red-selected samples, the correlation amplitude is significantly lower at our faint magnitude limits than would be expected for a model in which clustering is stable in proper coordinates and the redshift distribution maintains a no-evolution form. These results suggest that the flat- spectrum objects appearing faintwards of B ~ 23 are, if they are clustered as normal galaxies, broadly distributed in redshift over 1 <= z <= 3. If they are at lower redshifts, their clustering must be much weaker than that expected from a stable clustering model.
Fong Richard
Metcalfe Nigel
Roche Nathan
Shanks Tom
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