CONSTRAINTS ON SPATIAL VARIATIONS IN THE FINE-STRUCTURE CONSTANT FROM PLANCK

We use the cosmic microwave background (CMB) anisotropy data from Planck to constrain the spatial fluctuations of the fine-structure constant or at a redshift of 1100. We use a quadratic estimator to measure the four-point correlation function of the CMB temperature anisotropies and extract the angu...

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Veröffentlicht in:	The Astrophysical journal 2015-01, Vol.798 (1), p.1-5, Article 18
Hauptverfasser:	O'Bryan, Jon, Smidt, Joseph, De Bernardis, Francesco, Cooray, Asantha
Format:	Artikel
Sprache:	eng
Schlagworte:	ANISOTROPY ASTROPHYSICS, COSMOLOGY AND ASTRONOMY BACKGROUND RADIATION Confidence intervals Constants CORRELATION FUNCTIONS Cosmic microwave background Estimators FINE STRUCTURE Fluctuation FLUCTUATIONS INFLATIONARY UNIVERSE LIMITING VALUES Line of sight RED SHIFT RELICT RADIATION Scattering SURFACES
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