angular power spectrum — An Etymological Dictionary of Astronomy and Astrophysics

angular power spectrum

بیناب ِ توانی ِ زاویه‌ای

binâb-e tavâni-ye zâviye-yi

Fr.: spectre de puissance angulaire

Of the → cosmic microwave background radiation, a plot of how much the temperature varies from point to point on the sky versus the angular frequency. This spectrum answers fundamental questions about the nature of the Universe. → cosmic microwave background anisotropy; → dipole anisotropy.

See also: → angular; → power; → spectrum.

An Etymological Dictionary of Astronomy and Astrophysics