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Title: Parameterization of temperature and spectral distortions in future CMB experiments

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.
Authors:
;
Publication Date:
OSTI Identifier:
1128746
Report Number(s):
FERMILAB-PUB--14-017-A
Journal ID: ISSN 0001-7701; arXiv eprint number arXiv:1402.0968
DOE Contract Number:
AC02-07CH11359
Resource Type:
Journal Article
Resource Relation:
Journal Name: General Relativity and Gravitation; Journal Volume: 46; Journal Issue: 11
Research Org:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Org:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
Country of Publication:
United States
Language:
English
Subject:
79 ASTRONOMY AND ASTROPHYSICS