3.5k citations · 12.4k across the 97 of their papers we have counts for
6 papers · 1 filter
Recovering the Tidal Field in the Projected Galaxy Distribution
David Alonso, Boryana Hadzhiyska, Michael A. Strauss
We present a method to recover and study the projected gravitational tidal forces from a galaxy survey containing little or no redshift information. The method and the physical int…
Constraining ultra large-scale cosmology with multiple tracers in optical and radio surveys
David Alonso, Pedro G. Ferreira
Multiple tracers of the cosmic density field, with different bias, number and luminosity evolution, can be used to measure the large-scale properties of the Universe. We show how a…
Ultra large-scale cosmology in next-generation experiments with single tracers
David Alonso, Philip Bull, Pedro G. Ferreira +2
Future surveys of large-scale structure will be able to measure perturbations on the scale of the cosmological horizon, and so could potentially probe a number of novel relativisti…
HI galaxy simulations for the SKA: number counts and bias
Mario G. Santos, David Alonso, Philip Bull +2
This chapter describes the assumed specifications and sensitivities for HI galaxy surveys with SKA1 and SKA2. It addresses the expected galaxy number densities based on available s…
Cosmology with a SKA HI intensity mapping survey
Mario G. Santos, Philip Bull, David Alonso +11
HI intensity mapping (IM) is a novel technique capable of mapping the large-scale structure of the Universe in three dimensions and delivering exquisite constraints on cosmology, b…
Foreground Subtraction in Intensity Mapping with the SKA
Laura Wolz, Filipe B. Abdalla, David Alonso +7
21cm intensity mapping experiments aim to observe the diffuse neutral hydrogen (HI) distribution on large scales which traces the Cosmic structure. The Square Kilometre Array (SKA)…