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19 papers · 2 filters
The role of Pop III stars and early black holes in the 21cm signal from Cosmic Dawn
Emanuele M. Ventura, Alessandro Trinca, Raffaella Schneider +3
Modeling the 21cm global signal from the Cosmic Dawn is challenging due to the many poorly constrained physical processes that come into play. We address this problem using the sem…
Measuring line-of-sight shear with Einstein rings: a proof of concept
Natalie B. Hogg, Pierre Fleury, Julien Larena +1
Line-of-sight effects in strong gravitational lensing have long been treated as a nuisance. However, it was recently proposed that the line-of-sight shear could be a cosmological o…
Prospects of testing late-time cosmology with weak lensing of gravitational waves and galaxy surveys
Anna Balaudo, Alice Garoffolo, Matteo Martinelli +2
We investigate the synergy of upcoming galaxy surveys and gravitational wave (GW) experiments in constraining late-time cosmology, examining the cross-correlations between the weak…
High-Redshift Galaxies from Early JWST Observations: Constraints on Dark Energy Models
N. Menci, M. Castellano, P. Santini +3
Early observations with JWST have led to the discovery of an unexpected large density (stellar mass density ) of massive galaxies (stellar m…
Testing the key role of the stellar mass-halo mass relation in galaxy merger rates and morphologies via DECODE, a novel Discrete statistical sEmi-empiriCal mODEl
Hao Fu, Francesco Shankar, Mohammadreza Ayromlou +19
The relative roles of mergers and star formation in regulating galaxy growth are still a matter of intense debate. We here present our DECODE, a new Discrete statistical sEmi-empir…
Euclid: Calibrating photometric redshifts with spectroscopic cross-correlations
K. Naidoo, H. Johnston, B. Joachimi +126
Cosmological constraints from key probes of the Euclid imaging survey rely critically on the accurate determination of the true redshift distributions, , of tomographic redsh…