Phenomenological analysis of observed relations for low-redshift galaxies
AUTOR(ES)
Nicoll, J. F.
RESUMO
Maximum-likelihood estimates are made for the exponent p in the phenomenological redshift-distance relation z [unk] rp for galaxies at redshifts ≲0.03, on the basis of redshift (z)-magnitude (m)-apparent diameter (θ) observations given in the Reference Catalogue of Bright Galaxies [de Vaucouleurs, G. & de Vaucouleurs, A. (1964)]. The estimates are in the range 1.96 ≤ p ≤ 2.04 for the full sample of 742 galaxies having m - z - θ data, with dispersions ≲0.08, and in a similar but broader range for various subsamples. Explicit allowance for an observational cut-off in apparent magnitude in the m - z relation reinforces the result that p ∼ 2. Independent estimation based on a cut-off independent generalized Kafka-Schmidt V/Vm test for a subsample in conservatively limited redshift and magnitude ranges, yields p = 2.05.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=388794Documentos Relacionados
- Directly observed relations in complete galaxy samples and the predictions of redshift-distance power laws
- Is redshift-dependent evolution of galaxies a theoretical artifact?
- Very-long-baseline radio interferometry observations of low power radio galaxies.
- Parametric analysis of a phenomenological model for vortex-induced motions of monocolumn platforms
- SPATIAL DISTRIBUTION OF GALAXIES—ANALYSIS OF THE THEORY OF FLUCTUATIONS*
