Cosmological Parameters From Pre-Planck CMB Measurements: A 2017 Update
Cosmological Parameters From Pre-Planck CMB Measurements: A 2017 Update
复制标题
DOI：
10.1103/physrevd.95.063525
复制
发表时间：
2017-02
影响因子：
5
通讯作者：
E. Calabrese;R. Hlovzek;J. Bond;M. Devlin;J. Dunkley;M. Halpern;A. Hincks;K. Irwin;A. Kosowsky;K. Moodley;L. Newburgh;M. Niemack;L. Page;B. Sherwin;J. Sievers;D. Spergel;S. Staggs;Edward J. Wollack
中科院分区：
文献类型：
--
作者：
E. Calabrese;R. Hlovzek;J. Bond;M. Devlin;J. Dunkley;M. Halpern;A. Hincks;K. Irwin;A. Kosowsky;K. Moodley;L. Newburgh;M. Niemack;L. Page;B. Sherwin;J. Sievers;D. Spergel;S. Staggs;Edward J. Wollack
我们结合9年WMAP的完整任务释放和来自前普朗克阿塔卡马宇宙学望远镜（ACT）和南极望远镜（SPT）一代仪器的小尺度温度数据，提出了宇宙学约束。这是对Calabrese等人发表的分析的更新。Rev. D 87, 103012(2013)]，并强调了0.06 eV的大质量中微子对ΛCDM宇宙学的影响——这是普朗克分析中假设的，而不是ACT/SPT分析中假设的——以及普朗克清洁的光学再电离深度测量。我们表明，宇宙学的约束现在已经足够强大，以至于在再电离和中微子质量假设上的微小差异会产生系统差异，这些差异在数据中可以清楚地检测到。我们建议在将WMAP、ACT和SPT的宇宙学约束与其他调查或当前和未来的全任务普朗克宇宙学进行比较时使用这些更新的结果。宇宙学参数链在NASA的LAMBDA数据档案中是公开的。
We present cosmological constraints from the combination of the full mission nine-year WMAP release and small-scale temperature data from the pre-Planck Atacama Cosmology Telescope (ACT) and South Pole Telescope (SPT) generation of instruments. This is an update of the analysis presented in Calabrese et al. [Phys. Rev. D 87, 103012 (2013)], and highlights the impact on ΛCDM cosmology of a 0.06 eV massive neutrino—which was assumed in the Planck analysis but not in the ACT/SPT analyses—and a Planck-cleaned measurement of the optical depth to reionization. We show that cosmological constraints are now strong enough that small differences in assumptions about reionization and neutrino mass give systematic differences which are clearly detectable in the data. We recommend that these updated results be used when comparing cosmological constraints from WMAP, ACT and SPT with other surveys or with current and future full-mission Planck cosmology. Cosmological parameter chains are publicly available on the NASA’s LAMBDA data archive.