Parameterization of temperature and spectral distortions in future CMB experiments
Journal Article
·
· General Relativity and Gravitation
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.
- Research Organization:
- Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), High Energy Physics (HEP)
- DOE Contract Number:
- AC02-07CH11359
- OSTI ID:
- 1128746
- Report Number(s):
- FERMILAB-PUB-14-017-A; arXiv eprint number arXiv:1402.0968
- Journal Information:
- General Relativity and Gravitation, Vol. 46, Issue 11; ISSN 0001-7701
- Country of Publication:
- United States
- Language:
- English
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