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The N5K Challenge: Non-Limber Integration for LSST Cosmology
C. D. Leonard, T. Ferreira, X. Fang +9
The rapidly increasing statistical power of cosmological imaging surveys requires us to reassess the regime of validity for various approximations that accelerate the calculation o…
A hybrid map- component separation method for primordial CMB -mode searches
Susanna Azzoni, David Alonso, Maximilian H. Abitbol +2
The observation of the polarised emission from the Cosmic Microwave Background (CMB) from future ground-based and satellite-borne experiments holds the promise of indirectly detect…
Combining cosmic shear data with correlated photo- uncertainties: constraints from DESY1 and HSC-DR1
Carlos García-García, David Alonso, Pedro G. Ferreira +4
An accurate calibration of the source redshift distribution is a key aspect in the analysis of cosmic shear data. This, one way or another, requires the use of spectroscopic…
Constraining the physics of star formation from CIB-cosmic shear cross-correlations
Baptiste Jego, David Alonso, Carlos García-García +1
Understanding the physics of star formation is one of the key problems facing modern astrophysics. The Cosmic Infrared Background (CIB), sourced by the emission from all dusty star…
The impact of the Universe's expansion rate on constraints on modified growth of structure
Jaime Ruiz-Zapatero, David Alonso, Pedro G. Ferreira +1
In the context of modified gravity, at linear level, the growth of structure in the Universe will be affected by modifications to the Poisson equation and by the background expansi…
First measurement of projected phase correlations and large-scale structure constraints
Felipe Oliveira Franco, Boryana Hadzhiyska, David Alonso
Phase correlations are an efficient way to extract astrophysical information that is largely independent from the power spectrum. We develop an estimator for the line correlation f…