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Browsing Materials of forums, conferences and seminars by Author "d1173233-3d15-495d-bedb-d8688dffcc3d"

Browsing Materials of forums, conferences and seminars by Author "d1173233-3d15-495d-bedb-d8688dffcc3d"

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  • Cosmic Curvature Tested Directly from Observations 
    Denissenya, Mikhail; Linder, Eric V.; Shafieloo, Arman (NURIS; Energetic Cosmos Laboratory, 2018-02-13)
    Cosmic spatial curvature is a fundamental geometric quantity of the Universe. We investigate a model independent, geometric approach to measure spatial curvature directly from observations,without any derivatives of data. ...
  • Cosmic Growth Signatures of Modified Gravitational Strength 
    Denissenya, Mikhail; Linder, Eric V. (NURIS; Energetic Cosmos Laboratory, 2018-09-05)
    Cosmic growth of large scale structure probes the entire history of cosmic expansion and gravitational coupling. To get a clear picture of the effects of modification of gravity we consider a deviation in the coupling ...
  • Gravity’s Islands: Parametrizing Horndeski Stability 
    Denissenya, Mikhail; Linder, Eric V. (NURIS; Energetic Cosmos Laboratory, 2018-07-31)
    Cosmic acceleration may be due to modified gravity, with effective field theory or property functions describing the theory. Connection to cosmological observations through practical parametrization of these functions is ...
  • Subpercent Accurate Fitting of Modified Gravity Growth 
    Denissenya, Mikhail; Linder, Eric V. (NURIS; Energetic Cosmos Laboratory, 2017-09-25)
    Adding to our previous method for dealing with gravitational modifications at redshiftz&3through a single parameter, we investigate treatment of lower redshift modifications to linear growth observables. We establish sub ...