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Parity in Planck full-mission CMB temperature maps
Astroparticle Physics ( IF 4.2 ) Pub Date : 2021-02-01 , DOI: 10.1016/j.astropartphys.2020.102493
Srikanta Panda , Pavan K. Aluri , Pramoda Kumar Samal , Pranati K. Rath

In the standard model of cosmology, Cosmic Microwave Background (CMB) sky is expected to show no symmetry preferences. Following our previous studies, we explore the presence of any particular parity preference in the latest full-mission CMB temperature maps from ESA's Planck probe. Specifically, in this work, we will probe (a)symmetry in power between even and odd multipoles of CMB via it's angular power spectrum from Planck 2015 data. Further we also assess any specific preference for mirror parity (a)symmetry, by analysing the power contained in $l+m$=even or odd mode combinations.

中文翻译:

普朗克全任务 CMB 温度图中的奇偶校验

在宇宙学的标准模型中,宇宙微波背景 (CMB) 天空预计不会表现出对称性偏好。根据我们之前的研究,我们探索了 ESA 普朗克探测器最新全任务 CMB 温度图中是否存在任何特定的奇偶偏好。具体来说,在这项工作中,我们将通过普朗克 2015 年数据的角功率谱来探测(a)CMB 偶数和奇数多极之间功率的对称性。此外,我们还通过分析 $l+m$=偶或奇模式组合中包含的功率来评估对镜像奇偶校验 (a) 对称性的任何特定偏好。
更新日期:2021-02-01
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