THE TEMPERATURE OF THE COSMIC MICROWAVE BACKGROUND

By D. Fixsen. 2009

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The Far InfraRed Absolute Spectrophotometer data are independently recalibrated using the Wilkinson Microwave Anisotropy Probe data to obtain a cosmic microwave background (CMB) temperature of 2.7260 ± 0.0013. Measurements of the temperature of the CMB are reviewed. The determination from the measurements from the literature is CMB temperature of 2.72548 ± 0.00057 K.

Subfields: Astronomy and Astrophysics, Atomic and Molecular Physics, and Optics, Instrumentation

View Paper: https://www.semanticscholar.org/paper/699ec0f16cffc72d25bc11573dd0beabef25c63b

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Citations in the corpus

Galactic electrons and positrons at the Earth: new estimate of the primary and secondary fluxes (2010, background): “This is obviously the case for the CMB, the temperature of which was recently re-estimated in Fixsen (2009) to be 2.7260±0.0013K.”
Planck2015 results: XXVI. The SecondPlanckCatalogue of Compact Sources (2015, neutral): “The calibration of Planck is also absolute in the sense that it depends only on the motion of the satellite and the 0.02% accurate measurement of the CMB temperature (Fixsen 2009).”
NINE-YEAR WILKINSON MICROWAVE ANISOTROPY PROBE (WMAP) OBSERVATIONS: COSMOLOGICAL PARAMETER RESULTS (2012, background): “The CMB temperature is set to 2.72548 K (Fixsen 2009).”
Multi-messenger observations of a binary neutron star merger (2017, methodology): “Here, we always report source-frame mass parameters, assuming standard cosmology(Ade et al. 2016) and correcting for the motion of the solar Ssystem barycenter with respect to the cosmic microwave background(Fixsen 2009).”
Dark, cold, and noisy: constraining secluded hidden sectors with gravitational waves (2018, background): “35× 10−13 GeV [27, 58]) denote the Hubble rates (photon temperatures) at the time of the phase transition and today, respectively.”
New physics from the polarized light of the cosmic microwave background (2022, background): “725 K 48 , and the spectrum has a peak in microwave bands, hence the name ‘cosmic microwave background’.”
Elucidating ΛCDM: Impact of Baryon Acoustic Oscillation Measurements on the Hubble Constant Discrepancy (2017, methodology): “The CMB temperature was measured precisely by COBE/FIRAS (Fixsen et al. 1996; Fixsen 2009) and we view this result as independent of the CMB anisotropy measurements performed by more recent experiments.”
CMB at 2 × 2 order: the dissipation of primordial acoustic waves and the observable part of the associated energy release (2012, background): “Two orders of magnitude improvement in sensitivity over COBE/FIRAS have in principle been possible for several years (Fixsen & Mather 2002), and the recently proposed CMB experiment PIXIE (Kogut et al. 2011) would be able to detect distortions at the level of∆Iν/Iν ≃ 10−8−10−7 in the frequency range”
Dark Energy Survey Year 1 Results: A Precise H0 Estimate from DES Y1, BAO, and D/H Data (2017, methodology): “Adopting the CMB temperature of Fixsen (2009), C16 reports two separate constraints on bh2: one obtained using a theoretical calculation for the d(p, γ )3He reaction rate, and another obtained using experimental constraints for the same rate.”