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SUMMARY:Primordial power spectrum from Planck - Dhiraj Kumar Hazra (APCTP)
DTSTART:20140806T121500Z
DTEND:20140806T124500Z
UID:TALK52392@talks.cam.ac.uk
CONTACT:28811
DESCRIPTION:Using modified Richardson-Lucy algorithm I shall demonstrate t
 he\nreconstruction of the primordial power spectrum using the Cosmic Micro
 wave\nBackground temperature anisotropy data from Planck. I shall highligh
 t the\nsignificant features in the primordial power spectrum through a pro
 per error\nestimation. I shall also address the consistency of the primord
 ial power\nspectrum reconstructed from Planck angular power spectrum in di
 fferent\nfrequency channels with WMAP-9 angular power spectrum data. I sha
 ll explore\nthe degeneracy between primordial power spectrum features and 
 the\neffects of CMB lensing. Towards the end I shall present two nearly sm
 ooth\nprimordial power spectra\, containing only the important features th
 at\nprovide\nsignificant improvement in fit to the Planck data compared to
  power law\nprimordial\npower spectrum.
LOCATION:Sackler Lecture Theatre\, IoA
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