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  1. View a PDF of the paper titled Dynamical dark energy in light of the latest observations, by Gong-Bo Zhao and 25 other authors View PDF Abstract: A flat Friedman-Roberson-Walker universe dominated by a cosmological constant ($\Lambda$) and cold dark matter (CDM) has been the working model preferred by cosmologists since the discovery of cosmic ...
    Author:Gong-Bo Zhao, Gong-Bo Zhao, Marco Raveri, Marco Raveri, Levon Pogosian, Levon Pogosian, Yuting Wang,...Published:2017
  2. Next, we check whether the tension within the ΛCDM model can be interpreted as evidence for a dynamical dark energy.The dynamics of dark energy can be probed in terms of its equation of state w ...
    Author:Gong-Bo Zhao, Gong-Bo Zhao, Marco Raveri, Marco Raveri, Levon Pogosian, Levon Pogosian, Yuting Wang,...Published:2017
  3. for a dynamical DE. The dynamics of DE can be probed in terms of its equation of state w, which is equal to 1 for ,but is different in dynamical DE models where it will generally be a function of redshift z. Commonly considered alternatives to are a model with a constant w (wCDM), and one in which wis linear function of the scale factor (w 0w ...
  4. ui.adsabs.harvard.edu

    A flat Friedmann-Robertson-Walker universe dominated by a cosmological constant (Λ) and cold dark matter (CDM) has been the working model preferred by cosmologists since the discovery of cosmic acceleration<SUP>1,2</SUP>. However, tensions of various degrees of significance are known to be present among existing datasets within the ΛCDM framework<SUP>3-11</SUP>. In particular, the Lyman-α ...
    Author:Gong-Bo Zhao, Gong-Bo Zhao, Marco Raveri, Marco Raveri, Levon Pogosian, Levon Pogosian, Yuting Wang,...Published:2017
  5. scholar.harvard.edu

    Zhao G-bo, Raveri M, Pogosian L, Wang Y, Crittenden RG, Handley WJ, Percival WJ, Beutler F, Brinkmann J, Chuang C-H, et al. Dynamical dark energy in light of the latest observations. Nature Astronomy. 2017;1 :627-632.
  6. can be interpreted as evidence for a dynamical dark energy. The dynamics of dark energy can be probed in terms of its equation of state w, which is equal to −Λ1 or f, but is different in dynamical dark energy models, where it will generally be a function of red-shift z. Commonly considered alternatives to Λ are a model with
  7. semanticscholar.org

    DOI: 10.1038/s41550-017-0216-z Corpus ID: 55095537; Dynamical dark energy in light of the latest observations @article{Zhao2017DynamicalDE, title={Dynamical dark energy in light of the latest observations}, author={Gong-Bo Zhao and Marco Raveri and Levon Pogosian and Yuting Wang and Robert G. Crittenden and Will Handley and Will J. Percival and Florian Beutler and Jonathan Brinkmann and Chia ...
  8. raa-journal.org

    energy, w,defined as a ratio of the pressure P over energy density ρ of the effective dark fluid, is a critical quantity for investigating models that can explain the cosmic acceleration. For example, w=−1may mean that dark energy is essentially the vacuum energy, while an evolving w with cosmic time may suggest the dynamical nature of ...
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