The CosmoVerse: The White Paper
Newly announced on arXiv there is a review article with the title The CosmoVerse White Paper: Addressing observational tensions in cosmology with systematics and fundamental physics. The abridged form of the abstract reads:
The standard model of cosmology has provided a good phenomenological description of a wide range of observations both at astrophysical and cosmological scales for several decades. This concordance model is constructed by a universal cosmological constant and supported by a matter sector described by the standard model of particle physics and a cold dark matter contribution, as well as very early-time inflationary physics, and underpinned by gravitation through general relativity. There have always been open questions about the soundness of the foundations of the standard model. However, recent years have shown that there may also be questions from the observational sector with the emergence of differences between certain cosmological probes. In this White Paper, we identify the key objectives that need to be addressed over the coming decade together with the core science projects that aim to meet these challenges. These discordances primarily rest on the divergence in the measurement of core cosmological parameters with varying levels of statistical confidence. These possible statistical tensions may be partially accounted for by systematics in various measurements or cosmological probes but there is also a growing indication of potential new physics beyond the standard model. After reviewing the principal probes used in the measurement of cosmological parameters, as well as potential systematics, we discuss the most promising array of potential new physics that may be observable in upcoming surveys. We also discuss the growing set of novel data analysis approaches that go beyond traditional methods to test physical models.
arXiv:2504.01669v2
Here’s a plot demonstrating one of the tensions discussed in this paper, and widely on this blog, the Hubble Tension:
This is a very comprehensive review article consisting of over 400 pages and having over 400 authors. I expect all of you to read it over the weekend. There will be a test on Monday.
*One of whom happens to be a PhD student of mine.
In the Dark 
May 16, 2025 at 11:41 pm
[…] Ein außergewöhnlich kugelförmiger Supernova-Überrest, G305.4-2.2, aus dem Paper „Teleios (G305.4-2.2) – the mystery of a perfectly shaped new Galactic supernova remnant“ mit einem Artikel – auch die Papers „Dual-band Unified Exploration of three CMZ Clouds (DUET)“ mit einer PM aus Köln, „The H-alpha sky in three dimensions“ mit einem Thread, „The Evolutionary Map of the Universe: A new radio atlas for the southern hemisphere sky“ & „The Polarisation Sky Survey of the Universe’s Magnetism (POSSUM): Science Goals and Survey Description“, „The spectrum of magnetized turbulence in the interstellar medium“ mit Press Releases hier und hier und einer PM, „Emergence of Calabi–Yau manifolds in high-precision black-hole scattering“ mit Pressemitteilungen hier und hier, „A New Approach to the Low-frequency Stochastic Gravitational-wave Background: Constraints from Quasars and the Astrometric Hellings–Downs Curve“ mit einem Press Release und „The CosmoVerse White Paper: Addressing observational tensions in cosmology with systematics and fundamental physics“ (416 Seiten!) mit einem Teaser. […]