Understanding the origin of CMB constraints on dark energy

  title={Understanding the origin of CMB constraints on dark energy},
  author={H. K. Jassal and Jasjeet Singh Bagla and Thanu Padmanabhan},
  journal={Monthly Notices of the Royal Astronomical Society},
We study the observational constraints of cosmic microwave background (CMB) temperature and polarization anisotropies on models of dark energy, with special focus on models with variation in properties of dark energy with time. We demonstrate that the key constraint from CMB observations arises from the location of acoustic peaks. An additional constraint arises from the limits onNR from the relative amplitudes of acoustic peaks. Further, we show that the distance to the last scattering surface… Expand

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