A preference for spiral galaxies in one sector of the sky to be left-handed or right-handed
spirals would indicate a parity violating asymmetry in the overall universe and a preferred …

Aims. We study the angular distribution of temperature fluctuations in the cosmic microwave
background (CMB) to probe the statistical isotropy of the universe by using precise full-sky …

We review the basic hypotheses which motivate the statistical framework used to analyze
the cosmic microwave background, and how that framework can be enlarged as we relax …

We perform an analysis of the CMB temperature data taken by the Planck satellite
investigating if there is any significant deviation from cosmological isotropy. We look for …

We evaluate the angular bispectrum of the CMB temperature anisotropy at large angular
scale due to a stochastic background of primordial magnetic fields. The shape of non …

We probe the angular scale of homogeneity in the local Universe using blue galaxies from
the SDSS survey as a cosmological tracer. Through the scaled counts in spherical caps …

Anisotropic cosmological models are investigated in f (R) gravity in the metric formalism.
Plane symmetric models with anisotropy in the expansion rates are considered. The …

We compare the statistics of parity even and odd multipoles of the cosmic microwave
background (CMB) sky from Planck full mission temperature measurements. An excess …

We search for an unusual alignment of the preferred axes of the quadrupole and octopole,
the so-called axis of evil, in the cosmic microwave background (CMB) temperature and …

A detection or nondetection of primordial non-Gaussianity by using the cosmic microwave
background radiation (CMB) data is crucial not only to discriminate inflationary models but …