De Sitter's model and luminosity - Distance in cosmology

Details De Sitter's model and luminosity - Distance in cosmology De Sitter's model and luminosity - Distance in cosmology

Jun 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981mnras.195..959b&link_type=abstract

Monthly Notices of the Royal Astronomical Society, vol. 195, June 1981, p. 959-965. NASA-supported research.

Astronomy and Astrophysics

Astronomy

3

Astronomical Models, Cosmology, Distance, Red Shift, Stellar Luminosity, Quasars, Relativity

Scientific paper

The behavior of luminosity-distance with redshift is analyzed within the framework of homogeneous zero-pressure relativistic cosmology. de Sitter's model is shown to have the most redshift sensitive luminosity-distance function of all cosmologies which have q0 not less than -1. Quasar data which suggest a cut-off in absolute luminosity are reanalyzed and the cut-off disappears if either de Sitter's model or the assumption L(L-alpha) = 3 L(H-beta) is used.

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