Heating of the intergalactic medium by the cosmic microwave background during cosmic dawn [PDF]
Physical Review D, 2018 The intergalactic medium is expected to be at its coldest point before the formation of the first stars in the universe. Motivated by recent results from the EDGES experiment, we revisit the standard calculation of the kinetic temperature of the neutral ...
T. Venumadhav +3 more
semanticscholar +1 more source
Primordial Non-Gaussianity in the Cosmic Microwave Background
Advances in Astronomy, 2010 In the last few decades, advances in observational cosmology have given us a standard model of cosmology. We know the content of the universe to within a few percent.
Amit P. S. Yadav, Benjamin D. Wandelt
doaj +1 more source
Nonlinear Effects in the Cosmic Microwave Background [PDF]
, 1999 Major advances in the observation and theory of cosmic microwave background anisotropies have opened up a new era in cosmology. This has encouraged the hope that the fundamental parameters of cosmology will be determined to high accuracy in the near ...
A. D. Challinor +27 more
core +3 more sources
Cosmic microwave background limits on accreting primordial black holes [PDF]
, 2016 Interest in the idea that primordial black holes (PBHs) might comprise some or all of the dark matter has recently been rekindled following LIGO’s first direct detection of a binary-black-hole merger.
Y. Ali-Haimoud, M. Kamionkowski
semanticscholar +1 more source
Foreground-Immune Cosmic Microwave Background Lensing with Shear-Only Reconstruction. [PDF]
Physical Review Letters, 2018 Cosmic microwave background (CMB) lensing from current and upcoming wide-field CMB experiments such as AdvACT, SPT-3G and Simons Observatory relies heavily on temperature (versus polarization).
E. Schaan, S. Ferraro
semanticscholar +1 more source
Evidence for cosmic neutrino background form CMB circular polarization [PDF]
, 2014 The primordial anisotropies of the cosmic microwave background are linearly polarized via Compton-scattering. On the other hand, a primordial degree of circular polarization of the Cosmic Microwave Background is not observationally excluded. In this work,
Mohammadi, Rohoollah
core +2 more sources
Probing decoupling in dark sectors with the cosmic microwave background [PDF]
Journal of Cosmology and Astroparticle Physics, 2018 The acoustic peaks in the angular power spectrum of cosmic microwave background (CMB) temperature and polarization anisotropies play an important role as a probe of the nature of new relativistic particles contributing to the radiation density in the ...
Gongjun Choi +2 more
semanticscholar +1 more source
Magneto-optic effects of the cosmic microwave background
Nuclear Physics B, 2018 Generation of magneto-optic effects by the interaction of the CMB with cosmic magnetic fields is studied. Effects which generate polarization such as the Cotton–Mouton effect, vacuum polarization and photon–pseudoscalar mixing in external magnetic field ...
Damian Ejlli
doaj +1 more source
Cosmic Microwave Background Anisotropies from Global Texture [PDF]
, 1999 We investigate the global texture model of structure formation in cosmogonies with non-zero cosmological constant for different values of the Hubble parameter.
Durrer, Ruth +2 more
core +2 more sources
Relieving the tension between weak lensing and cosmic microwave background with interacting dark matter and dark energy models [PDF]
, 2017 We constrain interacting dark matter and dark energy (IDMDE) models using a 450-degree-square cosmic shear data from the Kilo Degree Survey (KiDS) and the angular power spectra from Planck's latest cosmic microwave background measurements. We revisit the
Rui An, C. Feng, Bin Wang
semanticscholar +1 more source