Spacetime curvature is important for cosmology constrained with supernova emissions
Yazarlar (3)
| Makale Türü |
Özgün Makale
(SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale)
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| Dergi Adı | International Journal of Theoretical Physics (Q3) | ||
| Dergi ISSN | 0020-7748 Dergi Bilgileri (2008) | ||
| Makale Dili | – | Basım Tarihi | 01-2008 |
| Kabul Tarihi | – | Yayınlanma Tarihi | 14-02-2008 |
| Cilt / Sayı / Sayfa | 47 / 9 / 2464–2478 | DOI | 10.1007/s10773-008-9680-7 |
| Makale Linki | https://link.springer.com/article/10.1007/s10773-008-9680-7 | ||
| UAK Araştırma Alanları |
Dedektör Teknolojisi
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| Özet |
| We investigate universe expansion models as functions of emission frequency ratio decline rather than redshift z, using the latest on-line, self-consistent data from 192 supernovae. We present results for simpler and some current models of cosmology, including those with dark energy (standard model) and a recent model correcting for the effect of a small time-dependent, emission frequency increase with lookback. This new model, with a gentle lookback decline of the Planck constant, and the standard model fit the data with similar confidence according to Bayesian Information Criteria. The standard model tends towards solutions high in matter density while remaining flat, but models without dark energy tend towards dilute universes with significant spacetime and curvature and a smaller Hubble constant. We conclude the normalized spacetime parameter, Ωk, should not be ignored and it includes the combined … |
| Anahtar Kelimeler |
BM Sürdürülebilir Kalkınma Amaçları
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| Google Scholar | 12 |