Results on Temperature Anisotropy of the Cosmic Microwave Background from the Planck Satellite(New Developments in Cosmic Microwave Background)

Komatsu Eiichiro

doi:10.11316/butsuri.69.10_681

Bibliographic Information

Other Title

プランク衛星による宇宙マイクロ波背景放射温度異方性の最新観測結果(<小特集>宇宙マイクロ波背景放射の新展開)
プランク衛星による宇宙マイクロ波背景放射温度異方性の最新観測結果
プランクエイセイニヨルウチュウマイクロハハイケイホウシャオンドイホウセイノサイシンカンソクケッカ

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Description

On March 21, 2013, the Planck collaboration has released the first 15.5-month data of temperature anisotropy of the cosmic microwave background, as well as the papers describing the cosmological interpretation. The most important discovery from the Planck data is that the amplitude of the primordial curvature perturbation on large scales is slightly larger than that on small scales. This is the first time that such a variation of the amplitudes of fluctuations on scales has been measured from the cosmic microwave background data alone with more than 5 standard deviations. This discovery provides the strongest ever evidence of the "cosmic inflation" paradigm.

Journal

Butsuri

Butsuri 69 (10), 681-690, 2014-10-05

The Physical Society of Japan