Parameterization of temperature and spectral distortions in future CMB experiments
Cosmology and Nongalactic Astrophysics
2015-01-06 v2 General Relativity and Quantum Cosmology
Abstract
CMB spectral distortions are induced by Compton collisions with electrons. We review the various schemes to characterize the anisotropic CMB with a non-Planckian spectrum. We advocate using logarithmically averaged temperature moments as the preferred language to describe these spectral distortions, both for theoretical modeling and observations. Numerical modeling is simpler, the moments are frame-independent, and in terms of scattering the mode truncation is exact.
Cite
@article{arxiv.1402.0968,
title = {Parameterization of temperature and spectral distortions in future CMB experiments},
author = {Cyril Pitrou and Albert Stebbins},
journal= {arXiv preprint arXiv:1402.0968},
year = {2015}
}
Comments
5 pages; discussion on chemical potential added