Modeling of non-rotating neutron stars in minimal dilatonic gravity
| Autor: | Kalin Marinov, Plamen P. Fiziev |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: |
Physics
Equation of state Field (physics) 010308 nuclear & particles physics Dark matter FOS: Physical sciences Astronomy and Astrophysics General Relativity and Quantum Cosmology (gr-qc) 01 natural sciences Cosmology General Relativity and Quantum Cosmology Gravitation Theoretical physics Neutron star Stars Astrophysics - Solar and Stellar Astrophysics Space and Planetary Science 0103 physical sciences Dark energy 010303 astronomy & astrophysics Solar and Stellar Astrophysics (astro-ph.SR) |
| Popis: | The model of minimal dilatonic gravity (MDG), called also the massive Branse-Dicke model with $\omega =0$, is an alternative model of gravitation, which uses one Branse-Dicke gravitation-dilaton field $\Phi$ and offers a simultaneous explanation of the effects of dark energy (DE) and dark matter (DM). Here we present an extensive research of non-rotating neutron star models in MDG with four different realistic equations of state (EOS), which are in agreement with the latest observational data. The equations describing static spherically symmetric stars in MDG are solved numerically. The effects corresponding to DE and DM are clearly seen and discussed. Comment: 12 pages, 17 figures, LaTeX file, new section added, 2 new figures added, final published version |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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