Signals from the early Universe: a comprehensive search for primordial features in Planck CMB datasets
arXiv astro-phr902d ago· International
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Signals from the early Universe: a comprehensive search for primordial features in Planck CMB datasets
We investigate the presence of primordial oscillatory features in measurements of CMB anisotropies through a systematic comparison of phenomenological templates. Building upon previous searches for primordial features using Planck data, we compare the full PR3 legacy release with the PR4 (NPIPE) processing to assess how the results depend on the choice of CMB maps and likelihood framework.
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First detected by CosmosBriefarXiv astro-ph·Thu, 28 May 2026 17:07:16 GMT· INT
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- First detected by CosmosBriefMay 28, 2026, 05:07 PM· arXiv astro-ph· LUconf 70%
Signals from the early Universe: a comprehensive search for primordial features in Planck CMB datasets
We investigate the presence of primordial oscillatory features in measurements of CMB anisotropies through a systematic comparison of phenomenological templates. Building upon previous searches for primordial features using Planck data, we compare the full PR3 legacy release with the PR4 (NPIPE) processing to assess how the results depend on the choice of CMB maps and likelihood framework.
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