DC pole | Wartość | Język |
dc.contributor.author | Zheng, Xiaogang | - |
dc.contributor.author | Biesiada, Marek | - |
dc.contributor.author | Ding, Xuheng | - |
dc.contributor.author | Cao, Shuo | - |
dc.contributor.author | Zhang, Sixuan | - |
dc.contributor.author | Zhu, Zong-Hong | - |
dc.date.accessioned | 2019-04-11T12:22:23Z | - |
dc.date.available | 2019-04-11T12:22:23Z | - |
dc.date.issued | 2018 | - |
dc.identifier.citation | European Physical Journal C, Vol. 78, iss. 3 (2018), art. no. 274 | pl_PL |
dc.identifier.issn | 1434-6044 | - |
dc.identifier.uri | http://hdl.handle.net/20.500.12128/8807 | - |
dc.description.abstract | Direct measurements of Hubble parameters H(z)
are very useful for cosmological model parameters inference.
Based on them, Sahni, Shafieloo and Starobinski introduced
a two-point diagnostic Omh2(zi , z j ) as an interesting tool for
testing the validity of the CDM model. Applying this test
they found a tension between observations and predictions of
the CDMmodel.We use the most comprehensive compilation
H(z) data from baryon acoustic oscillations (BAO) and
differential ages (DA) of passively evolving galaxies to study
cosmological models using the Hubble parameters itself and
to distinguish whether CDM model is consistent with the
observational datawith statistical analysis of the corresponding
Omh2(zi , z j ) two-point diagnostics. Our results show
that presently available H(z) data significantly improve the
constraints on cosmological parameters. The corresponding
statistical Omh2(zi , z j ) two-point diagnostics seems to prefer
the quintessence with w > −1 over the CDM model.
Better and more accurate prior knowledge of the Hubble constant,
will considerably improve the performance of the statistical
Omh2(zi , z j ) method. | pl_PL |
dc.language.iso | en | pl_PL |
dc.rights | Uznanie autorstwa 3.0 Polska | * |
dc.rights.uri | http://creativecommons.org/licenses/by/3.0/pl/ | * |
dc.subject | dark energy | pl_PL |
dc.subject | models | pl_PL |
dc.subject | holographic dark | pl_PL |
dc.title | Statistical analysis with cosmic-expansion-rate measurements and two-point diagnostics | pl_PL |
dc.type | info:eu-repo/semantics/article | pl_PL |
dc.relation.journal | European Physical Journal C | pl_PL |
dc.identifier.doi | 10.1140/epjc/s10052-018-5759-3 | - |
Pojawia się w kolekcji: | Artykuły (WNŚiT)
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