Title: Radiation in equilibrium with plasma and plasma effects on cosmic microwave background

Abstract

The spectrum of the radiation of a body in equilibrium is given by Planck's law. In plasma, however, waves below the plasma frequency cannot propagate; consequently, the equilibrium radiation inside plasma is necessarily different from the Planck spectrum. We derive, using three different approaches, the spectrum for the equilibrium radiation inside plasma. Here, we show that, while plasma effects cannot be realistically detected with technology available in the near future, there are a number of quantifiable ways in which plasma affects cosmic microwave background radiation.

Authors:

Munirov, Vadim R.  ^[1];

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Fisch, Nathaniel J. ^[1]

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1. Princeton Univ., Princeton, NJ (United States)

Publication Date:

2019-08-12

Research Org.:

Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)

Sponsoring Org.:

USDOE

OSTI Identifier:

1557564

Alternate Identifier(s):

OSTI ID: 1556829

Grant/Contract Number:  

NA0003871

Resource Type:

Accepted Manuscript

Journal Name:

Physical Review E

Additional Journal Information:

Journal Volume: 100; Journal Issue: 2; Journal ID: ISSN 2470-0045

Publisher:

American Physical Society (APS)

Country of Publication:

United States

Language:

English

Subject:

70 PLASMA PHYSICS AND FUSION TECHNOLOGY