The current cosmological model requires new physics beyond the standard model of
elementary particles and fields, such as dark matter and dark energy. Their nature is …

Cosmic inflation provides a window to the highest energy densities accessible in nature, far
beyond those achievable in any realistic terrestrial experiment. Theoretical insights into the …

Abstract The Simons Observatory (SO) is a cosmic microwave background survey
experiment that includes small-aperture telescopes (SATs) observing from an altitude of …

Observing in six frequency bands from 27 to 280 GHz over a large sky area, the Simons
Observatory (SO) is poised to address many questions in Galactic astrophysics in addition to …

ABSTRACT A key challenge in the search for primordial B-modes is the presence of
polarized Galactic foregrounds, especially thermal dust emission. Power-spectrum-based …

The characterization and modeling of polarized foregrounds has become a critical issue in
the quest for primordial B-modes. A typical method to proceed is to factorize and parametrize …

Context. The upcoming Simons Observatory Small Aperture Telescopes aim at achieving a
constraint on the primordial tensor-to-scalar ratio r at the level of σ (r= 0)≲ 0.003, observing …

A methodology to provide the polarization angle requirements for different sets of detectors,
at a given frequency of a CMB polarization experiment, is presented. The uncertainties in the …

We study a possibility of constraining isotropic cosmic birefringence with help of cosmic
microwave background polarization data in the presence of polarization angle …

Weak gravitational lensing of the cosmic microwave background (CMB) is an important
cosmological tool that allows us to learn about the structure, composition and evolution of …