학술논문

Measurements of B-mode polarization of the cosmic microwave background from 500 square degrees of SPTpol data
Document Type
article
Source
Physical Review D. 101(12)
Subject
Particle and High Energy Physics
Physical Sciences
astro-ph.CO
Astronomical and Space Sciences
Atomic
Molecular
Nuclear
Particle and Plasma Physics
Quantum Physics
Nuclear & Particles Physics
Mathematical physics
Astronomical sciences
Particle and high energy physics
Language
Abstract
We report a B-mode power spectrum measurement from the cosmic microwave background (CMB) polarization anisotropy observations made using the SPTpol instrument on the South Pole Telescope. This work uses 500 deg2 of SPTpol data, a five-fold increase over the last SPTpol B-mode release. As a result, the bandpower uncertainties have been reduced by more than a factor of two, and the measurement extends to lower multipoles: 52< 320.