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New Horizons in Cosmology with Spectral Distortions of the Cosmic Microwave Background

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arxiv 1909.01593 v1 pith:PDU6CILG submitted 2019-09-04 astro-ph.CO astro-ph.GAastro-ph.HEastro-ph.IMgr-qc

classification astro-ph.COastro-ph.GAastro-ph.HEastro-ph.IMgr-qc
keywords distortionsspectralbackgroundcosmicdistortionexpectedmicrowaveopen
verification ladder T0 review T1 audit T2 compute T3 formal
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Voyage 2050 White Paper highlighting the unique science opportunities using spectral distortions of the cosmic microwave background (CMB). CMB spectral distortions probe many processes throughout the history of the Universe. Precision spectroscopy, possible with existing technology, would provide key tests for processes expected within the cosmological standard model and open an enormous discovery space to new physics. This offers unique scientific opportunities for furthering our understanding of inflation, recombination, reionization and structure formation as well as dark matter and particle physics. A dedicated experimental approach could open this new window to the early Universe in the decades to come, allowing us to turn the long-standing upper distortion limits obtained with COBE/FIRAS some 25 years ago into clear detections of the expected standard distortion signals.

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Forward citations

Cited by 5 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

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  3. The Glow of Axion Quark Nugget Dark Matter: (IV) CMB Spectral and Anisotropy Signatures

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  4. A multi-axion model of inflation and dark matter

    hep-ph 2026-07 reject novelty 4.0 of 10

    A 300-mode Kaluza-Klein axion tower is proposed as a unified inflaton and dark-matter sector, but the lightest state's quoted lifetime contradicts the paper's own decay-rate formula.

  5. Update on the Physics of the Cosmic Microwave Background (2015-2025)

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