scholarly journals Boltzmann hierarchy for the cosmic microwave background at second order including photon polarization

2010 ◽  
Vol 82 (6) ◽  
Author(s):  
M. Beneke ◽  
C. Fidler
Keyword(s):  
Cosmic Microwave Background ◽  
Second Order ◽  
Microwave Background ◽  
Photon Polarization ◽  
Boltzmann Hierarchy

scholarly journals Non-Gaussianity and the Cosmic Microwave Background Anisotropies

2010 ◽  
Vol 2010 ◽  
pp. 1-68 ◽  
Author(s):  
N. Bartolo ◽  
S. Matarrese ◽  
A. Riotto
Keyword(s):  
Cosmic Microwave Background ◽  
Initial Conditions ◽  
Second Order ◽  
Basic Knowledge ◽  
Secondary Effects ◽  
Microwave Background ◽  
Numerical Examples ◽  
Many Sources ◽  
The Impact ◽  
Recombination Epoch

We review in a pedagogical way the present status of the impact of non-Gaussianity (NG) on the cosmic microwave background (CMB) anisotropies. We first show how to set the initial conditions at second order for the CMB anisotropies when some primordial NG is present. However, there are many sources of NG in CMB anisotropies, beyond the primordial one, which can contaminate the primordial signal. We mainly focus on the NG generated from the post inflationary evolution of the CMB anisotropies at second order in perturbation theory at large and small angular scales, such as the ones generated at the recombination epoch. We show how to derive the equations to study the second-order CMB anisotropies and provide analytical computations to evaluate their contamination to primordial NG (complemented with numerical examples). We also offer a brief summary of other secondary effects. This paper requires basic knowledge of the theory of cosmological perturbations at the linear level.

Small‐Scale Cosmic Microwave Background Observations at 8.4 GHz

1997 ◽  
Vol 483 (1) ◽  
pp. 38-50 ◽  
Author(s):  
R. Bruce Partridge ◽  
Eric A. Richards ◽  
Edward B. Fomalont ◽  
K. I. Kellerman ◽  
Rogier A. Windhorst
Keyword(s):  
Cosmic Microwave Background ◽  
Small Scale ◽  
Microwave Background

scholarly journals The evolution of the cosmic microwave background temperature

2011 ◽  
Vol 526 ◽  
pp. L7 ◽  
Author(s):  
P. Noterdaeme ◽  
P. Petitjean ◽  
R. Srianand ◽  
C. Ledoux ◽  
S. López
Keyword(s):  
Cosmic Microwave Background ◽  
Microwave Background ◽  
Cosmic Microwave Background Temperature ◽  
Background Temperature
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