Cosmological Constraints on the Coupling Model from Observational Hubble Parameter and Baryon Acoustic Oscillation Measurements

Cao, Shui; Zhang, Tong-Jie; Wang, Xinya; Zhang, Tingting

doi:10.3390/universe7030057

Cited by 11 publications

(9 citation statements)

References 58 publications

(52 reference statements)

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“…Finally we match our theory with observational Hubble data (OHD) obtained from two additional cosmic probe methods, the baryon acoustic oscillation (BAO) and the cosmic chronometer, coupled across the redshift range of z = [0 − 2.4] in 40 redshift bins. We derived the OHD data from [47], who constructed it from various BAO and cosmic chronometer observational data mentioned therein [48][49][50][51][52][53][54][55][56][57][58][59][60][61]. As it can be seen our model at its best fit b value gives a very agreement to the observational data collected from the BAO and the cosmic chronometers together as shown in fig.…”

Section: B Observational Hubble Datasupporting

confidence: 57%

Constraining the swiss-cheese IR-fixed point cosmology with cosmic expansion

Mitra,

Zarikas,

Bonanno

et al. 2021

Preprint

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In a recent work it has been proposed that the recent cosmic passage to a cosmic acceleration era is the result of the existence of small anti-gravity sources in each galaxy and clusters of galaxies.In particular a swiss-cheese cosmology model which relativistically integrates the contribution of all these anti-gravity sources on galactic scale has been constructed assuming the presence of an infrared fixed point for a scale dependent cosmological constant. The derived cosmological expansion provides explanation for both the fine tuning and the coincidence problem. The present work relaxes the previous assumption on the running of the cosmological constant and allows for a generic scaling around the infrared fixed point. Our analysis reveals in order to produce a cosmic evolution consistent with the best ΛCDM model, the IR-running of the cosmological constant is consistent with the presence of an IR-fixed point.

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Section: B Observational Hubble Datasupporting

confidence: 57%

Constraining the swiss-cheese IR-fixed point cosmology with cosmic expansion

Mitra,

Zarikas,

Bonanno

et al. 2021

Preprint

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show abstract

“…The error bar in Figs.26 and 27represent the observational Hubble parameter data[46,96]. In the right panel of Fig.26, the evolution curve of H for BHDEF model was plotted with = 0.1.…”

mentioning

confidence: 99%

Dynamical analysis and statefinder of Barrow holographic dark energy

Huang

et al. 2021

Eur. Phys. J. C

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Based on the holographic principle and the Barrow entropy, Barrow holographic dark energy had been proposed. In order to analyze the stability and the evolution of Barrow holographic dark energy, we, in this paper, apply the dynamical analysis and statefinder methods to Barrow holographic dark energy with different IR cutoff and interacting terms. In the case of using Hubble horizon as IR cutoff with the interacting term $$Q=\frac{\lambda }{H}\rho _{m}\rho _{D}$$ Q = λ H ρ m ρ D , we find this model is stable and can be used to describe the whole evolution of the universe when the energy transfers from the pressureless matter to the Barrow holographic dark energy. When the dynamical analysis method is applied to this stable model, an attractor corresponding to an accelerated expansion epoch exists and this attractor can behave as the cosmological constant. Furthermore, the coincidence problem can be solved in this case. Then, after using the statefinder analysis method to this model, we find this model can be discriminated from the standard $$\Lambda $$ Λ CDM model. Finally, we have discussed the turning point of Hubble diagram in Barrow holographic dark energy and find the turning point does not exist in this model.

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“…Finally, we match our theory with observational Hubble data (OHD) obtained from two additional cosmic probe methods, the baryon acoustic oscillation (BAO) and the cosmic chronometer, coupled across the redshift range of z = [0-2.4] in 40 redshift bins. We derived the OHD data from [59], who constructed it from various BAO and cosmic chronometer observational data mentioned therein [58,[60][61][62][63][64][65][66][67][68][69][70][71]. Our model, at its best fit 'b' value, provides agreement to the observational data collected from the BAO and the cosmic chronometers together as shown in Figure 6 across almost the entire redshift range.…”

Section: Observational Hubble Datamentioning

confidence: 52%

Constraining the Swiss-Cheese IR-Fixed Point Cosmology with Cosmic Expansion

et al. 2021

View full text Add to dashboard Cite

A recent work proposed that the recent cosmic passage to a cosmic acceleration era is the result of the existence of small anti-gravity sources in each galaxy and clusters of galaxies. In particular, a Swiss-cheese cosmology model, which relativistically integrates the contribution of all these anti-gravity sources on a galactic scale has been constructed assuming the presence of an infrared fixed point for a scale dependent cosmological constant. The derived cosmological expansion provides an explanation for both the fine tuning and the coincidence problem. The present work relaxes the previous assumption on the running of the cosmological constant and allows for a generic scaling around the infrared fixed point. Our analysis reveals that, in order to produce a cosmic evolution consistent with the best ΛCDM model, the IR-running of the cosmological constant is consistent with the presence of an IR-fixed point.

show abstract

Cosmological Constraints on the Coupling Model from Observational Hubble Parameter and Baryon Acoustic Oscillation Measurements

Cited by 11 publications

References 58 publications

Constraining the swiss-cheese IR-fixed point cosmology with cosmic expansion

Constraining the swiss-cheese IR-fixed point cosmology with cosmic expansion

Dynamical analysis and statefinder of Barrow holographic dark energy

Constraining the Swiss-Cheese IR-Fixed Point Cosmology with Cosmic Expansion

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