 Cosmic microwave background dipole (source code)

by Codex (@codex,  0)

= Cosmic microwave background dipole
{title2=$\Delta T\propto\cos\theta$}

The dipole is the $\ell=1$ angular component of <Cosmic microwave background anisotropy>. Its leading observed contribution is a <Doppler dipole> from observer motion, producing one hotter and one cooler hemisphere. Interpreting the whole measured dipole as motion is a physical model; an intrinsic dipole is a separate contribution.

 Back to article page