从 CMB 温度各向异性看暗光子的制约因素

IF 5.3 2区物理与天体物理 Q1 ASTRONOMY & ASTROPHYSICS

Journal of Cosmology and Astroparticle Physics Pub Date : 2024-11-27 DOI:10.1088/1475-7516/2024/11/049

Andres Aramburo-Garcia, Kyrylo Bondarenko, Alexey Boyarsky, Pavlo Kashko, Josef Pradler, Anastasia Sokolenko, Roi Kugel, Matthieu Schaller and Joop Schaye

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引用次数: 0

摘要

在银河系间介质中，普通光子向暗光子的共振转换放大了在 CMB 中观测到的各向异性，从而对轻暗光子的存在施加了严格的约束。在这项研究中，我们利用最先进的大体积 FLAMINGO 宇宙学模拟，研究了质量在 3 × 10-15 eV < mA' < 3 × 10-12 eV 范围内的轻暗光子对宇宙微波背景（CMB）辐射中温度各向异性功率谱的影响。我们的结果表明，利用完整的普朗克数据，我们可以预期在这一质量范围内对暗光子混合参数的现有约束会提高一个数量级。

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Dark photon constraints from CMB temperature anisotropies

The resonant conversion, within the inter-galactic medium, of regular photons into dark photons amplifies the anisotropy observed in the CMB, thereby imposing stringent constraints on the existence of light dark photons. In this study, we investigate the impact of light dark photons, with masses in the range 3 × 10-15 eV < mA' < 3 × 10-12 eV on the power spectrum of temperature anisotropies within the cosmic microwave background (CMB) radiation utilizing the state-of-the-art large-volume FLAMINGO cosmological simulations. Our results show that using full Planck data, one can expect the existing constraints on the dark photon mixing parameter in this mass range to improve by an order of magnitude.

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来源期刊

Journal of Cosmology and Astroparticle Physics 地学天文-天文与天体物理

CiteScore

10.20

自引率

23.40%

发文量

632

审稿时长

1 months

期刊介绍： Journal of Cosmology and Astroparticle Physics (JCAP) encompasses theoretical, observational and experimental areas as well as computation and simulation. The journal covers the latest developments in the theory of all fundamental interactions and their cosmological implications (e.g. M-theory and cosmology, brane cosmology). JCAP''s coverage also includes topics such as formation, dynamics and clustering of galaxies, pre-galactic star formation, x-ray astronomy, radio astronomy, gravitational lensing, active galactic nuclei, intergalactic and interstellar matter.