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Spectrophotometry of faint cluster galaxies and the Hubble diagram - An approach to cosmologyNew spectrophotometric data are presented for large-redshift galaxies in clusters. A new approach to aperture corrections and the analysis of the Hubble diagram is outlined, including the explicit incorporation of evolutionary effects. The importance of selection effects on the usual methods of analysis are in principle overcome in the analysis, although the heterogeneity of the sample still makes conclusions about cosmology slightly suspect. Formal values of the deceleration parameter are derived under several sets of assumptions, yielding results between +0.33 and -1.27 with formal standard deviations of order 0.7.
Document ID
19750036779
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Gunn, J. E.
Oke, J. B.
(Hale Observatories Pasadena, Calif., United States)
Date Acquired
August 8, 2013
Publication Date
January 15, 1975
Publication Information
Publication: Astrophysical Journal
Volume: 195
Subject Category
Astrophysics
Accession Number
75A20851
Funding Number(s)
CONTRACT_GRANT: NSF GP-27304
CONTRACT_GRANT: NGL-05-002-134
CONTRACT_GRANT: NSF GP-31413
Distribution Limits
Public
Copyright
Other

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