The Temperature of the Cosmic Microwave Background
D.J. Fixsen
TL;DR
This paper recalibrates FIRAS data with WMAP to precisely measure the CMB temperature at approximately 2.726 K, reviewing existing measurements and providing an updated, highly accurate value.
Contribution
It introduces an independent recalibration method combining FIRAS and WMAP data to refine the CMB temperature measurement.
Findings
CMB temperature determined as 2.7260 +/- 0.0013 K
Literature review yields a temperature of 2.72548 +/- 0.00057 K
Enhanced precision in CMB temperature measurement
Abstract
The FIRAS data are independently recalibrated using the WMAP data to obtain a CMB temperature of 2.7260 +/- 0.0013. Measurements of the temperature of the cosmic microwave background are reviewed. The determination from the measurements from the literature is cosmic microwave background temperature of 2.72548 +/- 0.00057 K.
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