New evidence for lack of CMB power on large scales

Details New evidence for lack of CMB power on large scales New evidence for lack of CMB power on large scales

2009-11-20

arxiv.org/abs/0911.4063v1

SCIENCE CHINA Physics, Mechanics & Astronomy 2010, 53(3) 567-570

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

9 pages, 3 figures

Scientific paper

10.1007/s11433-010-0146-6

A digitalized temperature map is recovered from the first light sky survey image published by the Planck team, from which an angular power spectrum is derived. The amplitudes of the low multipoles measured from the preliminary Planck power spectrum are significantly lower than that reported by the WMAP team. Possible systematical effects are far from enough to explain the observed low-l differences.

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