Spectrophotometry of faint cluster galaxies and the Hubble diagram - an approach to cosmology

作者: J. E. Gunn , J. B. Oke

DOI: 10.1086/153325

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摘要: New spectrophotometric data are presented for large-redshift galaxies in clusters. A new approach to aperture corrections and the analysis of Hubble diagram is outlined, including explicit incorporation evolutionary effects. The importance selection effects on usual methods principle overcome analysis, although heterogeneity sample still makes conclusions about cosmology slightly suspect. Formal values deceleration parameter derived under several sets assumptions, yielding results between +0.33 -1.27 with formal standard deviations order 0.7.

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