The synergy between CMB spectral distortions and anisotropies
The synergy between CMB spectral distortions and anisotropies
复制标题
DOI：
10.1088/1475-7516/2020/02/026
复制
发表时间：
2020-02-01
影响因子：
6.4
通讯作者：
Chluba, Jens
中科院分区：
文献类型：
--
作者：
Lucca, Matteo;Schoeneberg, Nils;Chluba, Jens
CMB的光谱畸变和各向异性为研究早期宇宙的能量注入过程提供了独立和互补的探针。在这里，我们讨论了这些观测之间的协同作用，并显示了有前途的未来的光谱失真任务，以约束外来和非外来的能量注入。我们表明，传统的探针，如大爆炸核合成和CMB各向异性可以受益于，甚至超越未来的光谱失真实验。为此，我们已经实现了一个统一的框架内的玻尔兹曼代码类一致对待光子和重子的热演化。此外，我们给出了一个广泛的和教学的介绍到整个宇宙的热历史的光谱扭曲和能量注入的主题，突出了它们的一些独特的功能和潜力，作为一个新的宇宙学和粒子物理学的探测。
Spectral distortions and anisotropies of the CMB provide independent and complementary probes to study energy injection processes in the early universe. Here we discuss the synergy between these observables, and show the promising future of spectral distortion missions to constrain both exotic and non-exotic energy injections. We show that conventional probes such as Big Bang Nucleosynthesis and CMB anisotropies can benefit from and even be surpassed by future spectral distortion experiments. For this, we have implemented a unified framework within the Boltzmann code class to consistently treat the thermal evolution of photons and baryons. Furthermore, we give an extensive and pedagogical introduction into the topic of spectral distortions and energy injections throughout the thermal history of the universe, highlighting some of their unique features and potential as a novel probe for cosmology and particle physics.