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From the 1 of 20 linked papers with an AI index.

activity
20242026
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20 papers

astro-ph.GA2026

Alignment of the Milky Way and M31 with their cosmic environment. New insights from constrained Local Group simulations

Hanneke C. Woudenberg, Amina Helmi, Ewoud Wempe +4

Using constrained simulations that reproduce the observed Milky Way–Andromeda configuration, the authors examine how the surrounding Local Sheet influences the shapes, spins, and d…

astro-ph.IM2026

Application of Bayesian Statistical Tools to SKA Telescopes Polarization Surveys to Study Magnetization of the Large-scale Structure of the Universe

Valentina Vacca, Sebastian Hutschenreuter, Andrea Cabriolu +18

Understanding cosmological magnetic fields requires a detailed knowledge of magnetism in the different environments of the large-scale structure of the Universe. Magnetic fields ar…

astro-ph.CO2026

Two per cent measurement of from Cepheids alone

Richard Stiskalek, Harry Desmond, Eleni Tsaprazi +4

One of the most pressing problems in current cosmology is the cause of the Hubble tension. We revisit a two-rung distance ladder, composed only of Cepheid periods and magnitudes, a…

astro-ph.CO2026

Learning the Universe: Constrained simulations of the Coma galaxy cluster -- I. Radial X-ray and Compton-y signatures

Ulrich P. Steinwandel, Stuart McAlpine, Richard Stiskalek +7

We present a suite of 50 high-fidelity simulations of Coma cluster analogues constructed from BORG/MANTICORE constrained initial conditions and evolved with the IllustrisTNG galaxy…

astro-ph.CO2026

Learning the Universe: Posterior Reliability of Neural Generative Models in High-Dimensional Field-Level Inference of Cosmic Initial Conditions

Ludvig Doeser, Jens Jasche

Accurate posterior estimation is central to scientific inference, as uncertainties determine what can be reliably learned from observational data. While Markov chain Monte Carlo me…

astro-ph.CO2026

The Manticore Project II: Bayesian digital twins of cosmic structure across the SDSS and BOSS volumes

Stuart McAlpine, Jens Jasche, Guilhem Lavaux +2

We present Manticore-Deep, a high-resolution Bayesian field-level reconstruction of cosmic large-scale structure over a comoving volume of to $z\approx…