OBSERVATIONAL H(z) DATA AS A COMPLEMENTARITY TO OTHER COSMOLOGICAL PROBES

Lin, Hui; Cheng, Hao; Wang, Xiao; Yuan, Qiang; Yi, Ze-Long; Zhang, Tong-Jie; Wang, Baoquan

doi:10.1142/s0217732309030217

Cited by 39 publications

(41 citation statements)

References 43 publications

(69 reference statements)

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“…In the future, with the developments in the observational technique of LRGs, the H(z) measurements can provide useful complements to other cosmic observations [459,460].…”

Section: Hubble Parameter Measurementsmentioning

confidence: 99%

Dark Energy

Li¹,

Li²,

Wang³

et al. 2011

Commun. Theor. Phys.

753

560

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“…In the future, with the developments in the observational technique of LRGs, the H(z) measurements can provide useful complements to other cosmic observations [459,460].…”

Section: Hubble Parameter Measurementsmentioning

confidence: 99%

Dark Energy

Li¹,

Li²,

Wang³

et al. 2011

Commun. Theor. Phys.

753

560

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show abstract

“…The reason is quite simple: it is obvious that these probes all use the distance scale (e.g., the luminosity distance d L , the shift parameter R, or the distance parameter A) measurement to determine cosmological parameters, which necessitates the integration of the Hubble parameter, and therefore destroys the fine structure of H(z), as well as some more important information. 111 The Hubble parameter depends on the differential age as a function of the redshift z of the form…”

Section: Observational Datamentioning

confidence: 99%

Cosmological evolution with interaction between dark energy and dark matter

Bolotin

Kostenko

Lemets

et al. 2015

Int. J. Mod. Phys. D

228

225

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In this review we consider in detail different theoretical topics associated with interaction in the dark sector. We study linear and non-linear interactions which depend on the dark matter and dark energy densities. We consider a number of different models (including the holographic dark energy and dark energy in a fractal universe) with interacting dark energy (DE) and dark matter (DM), have done a thorough analysis of these models. The main task of this review was not only to give an idea about the modern set of different models of dark energy, but to show how much can be diverse dynamics of the universe in these models. We find that the dynamics of a Universe that contains interaction in the dark sector can differ significantly from the Standard Cosmological Model (SCM).

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“…The reason is quite simple, it is obvious that these probes all use the distance scale (e.g., the luminosity distance d L , the shift parameter R, or the distance parameter A) measurement to determine cosmological parameters, which needs the integrate of the Hubble parameter and therefore lose the fine structure and some more important information of H(z). 33 However, the Hubble parameter depends on the differential age as a function of redshift z in the form H(z) = − 1 1+z dz dt , which provides a direct measurement for H(z) through a determination of dz/dt. demonstrated the feasibility of the method by applying it to a z ∼ 0 sample.…”

Section: Introductionmentioning

confidence: 99%

INTERACTION BETWEEN DARK ENERGY AND DARK MATTER: OBSERVATIONAL CONSTRAINTS FROM OHD, BAO, CMB AND SNe Ia

Cao

Liang

2013

Int. J. Mod. Phys. D

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In order to test if there is energy transfer between dark energy and dark matter, we investigate cosmological constraints on two forms of nontrivial interaction between the dark matter sector and the sector responsible for the acceleration of the universe, in light of the newly revised observations including OHD, CMB, BAO and SNe Ia. More precisely, we find the same tendencies for both phenomenological forms of the interaction term Q = 3γHρ, i.e., the parameter γ to be a small number, |γ| ≈ 10 −2 . However, concerning the sign of the interaction parameter, we observe that γ > 0 when the interaction between dark sectors is proportional to the energy density of dust matter, whereas the negative coupling (γ < 0) is preferred by observations when the interaction term is proportional to dark energy density. We further discuss two possible explanations to this incompatibility and apply a quantitative criteria to judge the severity of the coincidence problem. Results suggest that the γmIDE model with a positive coupling may alleviate the coincidence problem, since its coincidence index C is smaller than that for the γ d IDE model, the interacting quintessence and phantom models by four orders of magnitude.

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OBSERVATIONAL H(z) DATA AS A COMPLEMENTARITY TO OTHER COSMOLOGICAL PROBES

Cited by 39 publications

References 43 publications

Dark Energy

Dark Energy

Cosmological evolution with interaction between dark energy and dark matter

INTERACTION BETWEEN DARK ENERGY AND DARK MATTER: OBSERVATIONAL CONSTRAINTS FROM OHD, BAO, CMB AND SNe Ia

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