The magnitude-redshift relation

Details The magnitude-redshift relation The magnitude-redshift relation

Feb 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992apj...385..391j&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 385, Feb. 1, 1992, p. 391, 392.

Mathematics

Logic

Galactic Mass, Red Shift, Relativity, Astronomical Models, Cosmology, Magnitude

Scientific paper

Although, for sources of equal absolute magnitudes, apparent magnitude increases with redshift in Friedmann universes in which both the pressure and the cosmological constant vanish, there are cosmological models in which more distant sources can appear brighter. A simple example is given in which the density is a positive, decreasing function of time, although the pressure behaves in an unphysical way.

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