Bibcode
Lerner, E. J.; Falomo, R.; Scarpa, R.
Bibliographical reference
International Journal of Modern Physics D, Volume 23, Issue 6, id. 1450058
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5
2014
Citations
13
Refereed citations
11
Description
The Tolman test for surface brightness (SB) dimming was originally
proposed as a test for the expansion of the universe. The test, which is
independent of the details of the assumed cosmology, is based on
comparisons of the SB of identical objects at different cosmological
distances. Claims have been made that the Tolman test provides
compelling evidence against a static model for the universe. In this
paper we reconsider this subject by adopting a static Euclidean universe
(SEU) with a linear Hubble relation at all z (which is not the standard
Einstein-de Sitter model), resulting in a relation between flux and
luminosity that is virtually indistinguishable from the one used for
ΛCDM models. Based on the analysis of the UV SB of luminous disk
galaxies from HUDF and GALEX datasets, reaching from the local universe
to z 5, we show that the SB remains constant as expected in a static
universe.
A re-analysis of previously published data used for the Tolman test at
lower redshift, when treated within the same framework, confirms the
results of the present analysis by extending our claim to elliptical
galaxies. We conclude that available observations of galactic SB are
consistent with a SEU model.
We do not claim that the consistency of the adopted model with SB data
is sufficient by itself to confirm what would be a radical
transformation in our understanding of the cosmos. However, we believe
this result is more than sufficient reason to examine this combination
of hypotheses further.
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