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Browsing 03.NU Research and Innovation System by Author "c3f4d8e8-d93b-4d0a-8766-4838e6d18723"

Browsing 03.NU Research and Innovation System by Author "c3f4d8e8-d93b-4d0a-8766-4838e6d18723"

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  • Joining bits and pieces of reionization history 
    Hazra, Dhiraj Kumar; Paoletti, Daniela; Finelli, Fabio; Smoot, George F. (NURIS; Energetic Cosmos Laboratory, 2019-04-02)
    Cosmic Microwave Background temperature and polarization anisotropies from Planck have estimated lower value of the optical depth to reionization (τ) compared to WMAP.
  • Probing features in inflaton potential and reionization history with future CMB space observations 
    Hazra, Dhiraj Kumar; Paoletti, Daniela; Ballardini, Mario; Finelli, Fabio; Shafieloo, Arman; Smoot, George F; Starobinsky, Alexei A. (NURIS; Energetic Cosmos Laboratory, 2018-03-04)
    We consider the prospects of probing features in the primordial power spectrum with future Cosmic Microwave Background (CMB) polarization measurements. In the scope of the inflationary scenario, such features in the spectrum ...
  • Reionization in the dark and the light from Cosmic Microwave Background 
    Hazra, Dhiraj Kumar; Paoletti, Daniela; Finelli, Fabio; Smoot, George F. (NURIS; Energetic Cosmos Laboratory, 2018-07-14)
    We explore the constraints on the history of reionization from Planck 2015 CosmicMicrowave Background (CMB) data and we derive the forecasts for future CMB observations.We consider a class of monotonic histories of ...
  • Twin LIGO/Virgo Detections of a Viable Gravitationally-Lensed Black Hole Merger 
    Broadhurst, Tom; Smoot, George F.; Diego, Jose M. (NURIS; Energetic Cosmos Laboratory, 2019-01-10)
    We identify a binary black hole (BBH) merger that appears to be multiply lensed by an intervening galaxy. The LIGO/Virgo events GW170809 and GW170814 have indistinguishable waveforms separated by 5 days, and overlap on the ...
  • Witnessing the reionization history using Cosmic Microwave Background observation from Planck 
    Hazra, Dhiraj Kumar; Smoot, George F (NURIS; Energetic Cosmos Laboratory, 2017-12-11)
    We constrain the history of reionization using the data from Planck 2015 Cosmic Microwave Background (CMB) temperature and polarization anisotropy observations. We also use prior constraints on the reionization history at ...