Moumita Aich

TL;DR: In this paper, the effects of the step in a small field model and a tachyon model on the fit of the cosmic microwave background data near the multipole moments of l = 22 and 40 were investigated.

TL;DR: In this paper, the authors carried out a complete numerical analysis of two models that lead to oscillations over all scales in the scalar power spectrum and found that the axion monodromy model leads to a considerably better fit to the data in comparison to the standard power law spectrum, while the quadratic potential superposed with a sinusoidal modulation does not improve the fit to a similar extent.

TL;DR: In this article, the effects of the step in a small field model and a tachyon model on the performance of the tensor power spectrum was investigated, and it was shown that, if the tensors prove to be small (say, $r\lesssim 0.01$), the quadratic potential model will cease to be viable, and more attention will need to be paid to examples such as the small field models.

TL;DR: The C-Band All-Sky Survey (C-BASS) as discussed by the authors is an all-sky full-polarization survey at a frequency of 5 GHz, designed to provide complementary data to the all sky surveys of WMAP and Planck, and future CMB B-mode polarization imaging surveys.

TL;DR: This work includes errors in X by marginalising over latent variables, effectively employing a Bayesian hierarchical model, and deriving the Fisher Matrix for this more general case of data divided into two parts, and compares to Markov Chain Monte Carlo experiments.