From the 1 of 18 linked papers with an AI index.
18 papers
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…
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…
PySCo-EFT and ECOSMOG-EFT: a tandem of N-body simulation codes for the Effective Field Theory of Dark Energy
Himanish Ganjoo, Yann Rasera, Emilio Bellini +18
Modified gravity theories constitute viable alternatives to the standard cosmological model for explaining the observed late-time accelerated expansion of the Universe. The Effecti…
Euclid preparation. The impact of redshift interlopers on the two-point correlation function analysis
Euclid Collaboration, I. Risso, A. Veropalumbo +317
The Euclid survey aims to measure the spectroscopic redshift of emission-line galaxies by identifying the H line in their slitless spectra. This method is sensitive to the si…
Revisiting the Great Attractor: The Local Group's streamline trajectory, cosmic velocity and dynamical fate
Richard Stiskalek, Harry Desmond, Stuart McAlpine +3
We revisit the Great Attractor using the Manticore-Local suite of digital twins of the nearby Universe. The Great Attractor concept has been proposed as an answer to three distinct…
Reconstructing the largest scales of the Universe with field-level inference applied to the Quaia Quasar Catalogue
Adam Andrews, Arthur Loureiro, Jens Jasche +3
The recently released Quaia quasar catalogue, with its broad redshift range and all-sky coverage, enables unprecedented three-dimensional reconstructions of matter across cosmic ti…