8 papers
\textit{Euclid} preparation. Baryon acoustic oscillations extraction techniques: comparison and optimisation
Euclid Collaboration, E. Sarpa, A. Veropalumbo +296
We present the first end-to-end validation of the Euclid baryon acoustic oscillation (BAO) analysis pipeline, encompassing density-field reconstruction, two-point correlation funct…
Extracting the Alcock-Paczynski signal from voids: A novel approach via reconstruction
G. Degni, E. Sarpa, M. Aubert +3
The void galaxy cross correlation function is a powerful tool to extract cosmological information. Through the void galaxy cross correlation function, cosmic voids, the underdense…
From Redshift to Real Space: Combining Linear Theory With Neural Networks
Edoardo Maragliano, Punyakoti Ganeshaiah Veena, Giulia Degni +1
Spectroscopic redshift surveys are key tools to trace the large-scale structure (LSS) of the Universe and test the CDM model. However, using redshifts as distance proxies intro…
The Back-in-time Void Finder: dynamical identification of cosmic voids through optimal transport reconstruction
Simone Sartori, Sofia Contarini, Elena Sarpa +4
Cosmic voids have increasingly emerged as a powerful cosmological probe. However, their large spatial extent and intrinsically underdense environments make their identification hig…
Kinematic lensing with high-resolution spectroscopic surveys. A unique opportunity for transformative cosmology at high redshifts in the 2040s
Stefano Camera, Martin Kilbinger, Jean-Paul Kneib +10
We present a science case to perform high-redshift cosmic shear surveys for cosmology with next-generation spectroscopic instruments, such as the proposed MegaMapper and Wide-field…
Probing General Relativity on Cosmological Scales in the 2040s
Federico Montano, Samantha J. Rossiter, Chris Addis +18
General relativity is exquisitely tested in strong-field regimes, yet its validity on cosmological scales remains largely unexplored. Upcoming wide and deep large-scale structure s…