Browsing Research Articles (Physics) by Author "Duniya, Didam G.A."

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    • Clustering of quintessence on horizon scales and its imprint on HI intensity mapping 

      Duniya, Didam G.A.; Bertacca, Daniele; Maartens, Roy (IOP Science, 2013)
      Quintessence can cluster only on horizon scales. What is the effect on the observed matter distribution? To answer this, we need a relativistic approach that goes beyond the standard Newtonian calculation and deals properly ...

    • Probing beyond-Horndeski gravity on ultra-large scales 

      Duniya, Didam G.A.; Moloi, Teboho; Clarkson, Chris (IOP Publishing Ltd, 2020)
      The beyond-Horndeski gravity has recently been reformulated in the dark energy paradigm — which has been dubbed, Unified Dark Energy (UDE). The evolution equations for the given UDE appear to correspond to a non-conservative ...