Zobrazeno 1 - 10
of 30
pro vyhledávání: '"Contreras, Dagoberto"'
The kinetic Sunyaev Zel'dovich (kSZ) effect, cosmic microwave background (CMB) temperature anisotropies induced by the scattering of CMB photons from free electrons, will be measured by near-term CMB experiments at high significance. By combining CMB
Externí odkaz:
http://arxiv.org/abs/2205.15779
Autor:
Scott, Douglas, Bond, J. Richard, Chapman, Scott, Contreras, Dagoberto, Fich, Michael, Halpern, Mark, Hinshaw, Gary, Hlozek, Renee, Sievers, Jonathan
Canada has thriving communities in CMB (cosmic microwave background) studies, cosmology and submillimetre (submm) astronomy, with involvement in many facilities that featured prominently in previous Astronomy Long Range Plans. The standard cosmologic
Externí odkaz:
http://arxiv.org/abs/1910.05419
High-resolution, low-noise observations of the cosmic microwave background (CMB) planned for the near-future will enable new cosmological probes based on re-scattered CMB photons -- the secondary CMB. At the same time, enormous galaxy surveys will ma
Externí odkaz:
http://arxiv.org/abs/1904.10033
Publikováno v:
JCAP07(2019)039
Both particle physics experiments and cosmological surveys can constrain the properties of sterile neutrinos, but do so with different parameterizations that naturally use different prior information. We present joint constraints on the 3$+$1 sterile
Externí odkaz:
http://arxiv.org/abs/1812.02102
The statistics of extremal points in the cosmic microwave background (CMB) temperature (hot and cold spots) have been well explored in the literature, and have been used to constrain models of the early Universe. Here, we extend the study of critical
Externí odkaz:
http://arxiv.org/abs/1811.05629
In order to better analyse the polarization of the cosmic microwave background (CMB), which is dominated by emission from our Galaxy, we need tools that can detect residual foregrounds in cleaned CMB maps. Galactic foregrounds introduce statistical a
Externí odkaz:
http://arxiv.org/abs/1807.05188
Cosmic birefringence is the process that rotates the plane of polarization by an amount, $\alpha$, as photons propagate through free space. Such an effect arises in parity-violating extensions to the electromagnetic sector, such as the Chern-Simons t
Externí odkaz:
http://arxiv.org/abs/1705.06387
The cosmic microwave background (CMB) contains perturbations that are close to Gaussian and isotropic. This means that its information content, in the sense of the ability to constrain cosmological models, is closely related to the number of modes pr
Externí odkaz:
http://arxiv.org/abs/1603.03550
In a recent paper, Gurzadyan & Penrose claim to have found directions in the sky around which there are multiple concentric sets of annuli with anomalously low variance in the cosmic microwave background (CMB). These features are presented as evidenc
Externí odkaz:
http://arxiv.org/abs/1508.05158
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