The cross correlation of the ABS and ACT maps

Li, Zack; Naess, Sigurd; Aiola, Simone; Alonso, David; Appel, John W.; Bond, J. Richard; Calabrese, Erminia; Choi, Steve K.; Crowley, Kevin T.; Essinger-Hileman, Thomas; Duff, Shannon M.; Dunkley, Joanna; Fowler, J. W.; Gallardo, Patricio; Ho, Shuay-Pwu Patty; et. al.

Abstract

One of the most important checks for systematic errors in CMB studies is the cross correlation of maps made by independent experiments. In this paper we report on the cross correlation between maps from the Atacama B-mode Search (ABS) and Atacama Cosmology Telescope (ACT) experiments in both temperature and polarization. These completely different measurements have a clear correlation with each other and with the Planck satellite in both the EE and TE spectra at l 400 over the roughly 0110 deg(2) common to all three. The TB, EB, and BB cross spectra are consistent with noise. Exploiting such cross-correlations will be important for future experiments operating in Chile that aim to probe the 30 l 8,000 range.

Más información

Título según WOS: The cross correlation of the ABS and ACT maps
Título de la Revista: JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
Número: 9
Editorial: IOP PUBLISHING LTD
Fecha de publicación: 2020
DOI:

10.1088/1475-7516/2020/09/010

Notas: ISI