publication . Preprint . Article . 2014

Off-center Observers Versus Supernovae in Inhomogeneous Pressure Universes

Adam Balcerzak; Mariusz P. Da¸browski; Tomasz Denkiewicz;
Open Access English
  • Published: 20 Aug 2014
Abstract
Exact luminosity distance and apparent magnitude formulas are applied to Union2 557 supernovae sample in order to constrain possible position of an observer outside of the center of symmetry in spherically symmetric inhomogeneous pressure Stephani universes which are complementary to inhomogeneous density Lema\^itre-Tolman-Bondi (LTB) void models. Two specific models are investigated. The first which allows a barotropic equation of state at the center of symmetry with no scale factor function being specified (model IIA), and the second which has no barotropic equation of state at the center, but has an explicit dust-like scale factor evolution (model IIB). It is...
Subjects
arXiv: Astrophysics::Cosmology and Extragalactic Astrophysics
free text keywords: Astrophysics - Cosmology and Nongalactic Astrophysics, General Relativity and Quantum Cosmology, Space and Planetary Science, Astronomy and Astrophysics, Astrophysics, Dimensionless quantity, Equation of state, Luminosity, Quantum mechanics, Universe, media_common.quotation_subject, media_common, Scale factor, Cosmology, Barotropic fluid, Luminosity distance, Physics, Astronomy
Related Organizations
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publication . Preprint . Article . 2014

Off-center Observers Versus Supernovae in Inhomogeneous Pressure Universes

Adam Balcerzak; Mariusz P. Da¸browski; Tomasz Denkiewicz;