Cleaned ACT Maps After Removing Low-m Modes (IMAGE)

Sissa Medialab

Cleaned ACT Maps After Removing Low-m Modes

Caption

The same maps after removing spherical harmonics coefficients with m<5; or equivalently, removing 2D Fourier modes with |ℓx|<5. The pickup is no longer visible, revealing the CMB T and E-modes, and the correlated noise structure in polarization.

Credit

The Atacama Cosmology Telescope collaboration

Usage Restrictions

Quote authors

License

Original content

Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.