Accelerated expansion of the universe from the perspective of inhomogeneous cosmologyStephani solutioninhomogeneous cosmologycosmological accelerationWe present a special case of the Stephani solution with spherical symmetry while considering different values of spatial curvature. We investigate the dynamics of ...
BEIJING, April 9 (Xinhua) -- Chinese and foreign astronomers have achieved a breakthrough in dark energy research, offering fresh insights into the physical mechanisms behind the accelerated expansion of the universe. The findings, announced by the National Astronomical Observatories of the Chinese Aca...
Accelerated expansion of the Universe in a higher dimensional modified gravity with Euler-Poincaré terms.doi:10.1088/0264-9381/32/21/215009A higher dimensional modified gravity theory with an action that includes dimensionally continued Euler-Poincar茅 forms up to second order in curvatures is ...
We present a short (and necessarily incomplete) review of the evidence for the accelerated expansion of the Universe. The most direct probe of acceleration relies on the detailed study of supernovae (SN) of type Ia. Assuming that these are standardizable candles and that they fairly sample a...
N. Straumann, "The Mystery of the cosmic vacuum energy density and the accelerated expansion of the universe," Eur. J. Phys. 20, 419-427 (1999). 4.2Straumann, N. `The mystery of the cosmic vacuum energy density and the accelerated expansion of the Universe' astro-ph/9908342...
R. Aguila et al., Present accelerated expansion of the universe from new Weyl-integrable gravity approach, Eur. Phys. J. C , 74 (2014), 3158R. Aguila, J. Aguilar, C. Moreno, M. Bellini, Present accelerated ex- pansion of the universe from new Weyl-integrable gravity approach, Eur. ...
Emerging gravitation in an accelerated expansion of the Universe – Probable natures of inertia, dark matter and dark energy 来自 Semantic Scholar 喜欢 0 阅读量: 2 作者: N Ziaei 摘要: Since the 2000s, many astrophysical observations have led to establishment of a standard model of cosmology, ...
supernova; redshift; accelerated expansion; gravitational constant; inert mass; Chandrasekhar limit; dark energy; cosmological constant; CMB Creative Commons BY-NC-ND 4.0 Articles in the same Issue Mass Distribution and Gravitational Potential of the Milky Way Processing of Digital Plates1.2m of ...
UniverseIt is shown that a nonminimal coupling between the scalar curvature and the matter Lagrangian density may account for the accelerated expansion of the Universe and provide, through mimicking, for a viable unification of dark energy and dark matter. An analytical exploration is first performed...
The Hubble's constant Ho de- termines the rate of expansion of the universe while mo denotes the dimensionless density parameter of matter component. The transition time tn is related with the current age of the universe to as tn = to 1 + (1 + zn)3(1+ω)/2 − 1 1+ω −1 ....