IIA Institutional Repository

Browsing by Author "Park, C"

Browsing by Author "Park, C"

Sort by: Order: Results:

  • On Minkowski Functionals of CMB polarization 
    Pravabati, C; Vidhya, G; Yogendran, K. P; Park, C (Elsevier B.V, 2017-08)
    CMB polarization data is usually analyzed using Eand Bmodes because they are scalar quantities under rotations along the lines of sight and have distinct physical origins. We explore the possibility of using the Stokes ...
  • Primordial non-Gaussian signatures in CMB polarization 
    Vidhya, G; Pravabati, C; Yogendran, K. P; Park, C (IOP Publishing, 2015-02)
    We study the signatures of local type primordial non-Gaussianity, parametrized by fNL, of scalar perturbations in CMB polarization using the probability distribution functions, Minkowski Functionals and Betti numbers. We ...
  • Residual foreground contamination in the WMAP data 
    Pravabati, C; Park, C (IOP Publishing, 2014)
    We have studied whether there is any residual foreground contamination in the foreground reduced WMAP-7 data for the differential assemblies (DAs) Q, V and W. We have calculated the correlation between the foreground map, ...
  • Residual foreground contamination in the WMAP data and bias in non-Gaussianity estimation 
    Pravabati, C; Park, C (IOP Publishing, 2013-02)
    We analyze whether there is any residual foreground contamination in the cleaned WMAP 7 years data for the differential assemblies, Q, V and W. We calculate the correlation between the foreground map, from which long ...
  • Tensor Minkowski Functionals for random fields on the sphere 
    Pravabati, C; Yogendran, K. P; Joby, P. K; Vidhya, G; Appleby, S; Park, C (IOP Publishing, 2017-12)
    We generalize the translation invariant tensor-valued Minkowski Functionals which are defined on two-dimensional flat space to the unit sphere. We apply them to level sets of random fields. The contours enclosing ...

Search DSpace

Browse

My Account