Abstract
view Abstract Citations (29) References (26) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS A Redshift-Magnitude Relation for Nonuniform Pressure Universes Dabrowski, Mariusz P. Abstract A redshift-magnitude relation for the two exact nonuniform pressure spherically symmetric Stephani universes is presented. The Kristian-Sachs method expanding the relativistic quantities in series is used, but only first-order terms in redshift z are considered. The numerical results are given both for centrally placed and non-centrally placed observers. In the former case the redshift-magnitude relation does not depend on the direction in the sky and the Friedmann limit can be easily performed. It appears that the effect of spatial dependence of pressure is similar to the effect of the deceleration parameter in Friedmann models. In the latter case the angular dependence of the relation is important. This may serve as another possible explanation of the non-compatibility of the theoretical curve of the redshift-magnitude relation with observations for large redshift objects in the Friedmann universe. On the other hand, comparing the magnitudes of equal redshifts objects in different directions in the sky one can test the reliability of these models. Publication: The Astrophysical Journal Pub Date: July 1995 DOI: 10.1086/175855 arXiv: arXiv:0902.2899 Bibcode: 1995ApJ...447...43D Keywords: COSMOLOGY: LARGE-SCALE STRUCTURE OF UNIVERSE; COSMOLOGY: THEORY; GALAXIES: DISTANCES AND REDSHIFTS; RELATIVITY; Astrophysics - Cosmology and Extragalactic Astrophysics; General Relativity and Quantum Cosmology; High Energy Physics - Theory E-Print: AASTEX5.0, 22 pages, 5 figures, a pioneering work about testing inhomogeneous pressure universes (Ap.J. 447, 43 (1995)) full text sources arXiv | ADS |
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