629 citations · 4.6k across the 75 of their papers we have counts for
6 papers · 1 filter
Inflation and Early Dark Energy with a Stage II Hydrogen Intensity Mapping Experiment
Cosmic Visions 21 cm Collaboration, Réza Ansari, Evan J. Arena +29
This white paper envisions a revolutionary post-DESI, post-LSST dark energy program based on intensity mapping of the redshifted 21cm emission line from neutral hydrogen at radio f…
Interpreting measurements of the anisotropic galaxy power spectrum
Florian Beutler, Emanuele Castorina, Pierre Zhang
The most commonly used estimators of the anisotropic galaxy power spectrum employ Fast Fourier transforms, and rely on a specific choice of the line-of-sight that breaks the symmet…
Synergies between radio, optical and microwave observations at high redshift
Shi-Fan Chen, Emanuele Castorina, Martin White +1
We study synergies between three promising methods to measure large-scale structure in the next decade. Optical spectroscopic surveys are the most mature, but become increa…
Ingredients for 21cm intensity mapping
Francisco Villaescusa-Navarro, Shy Genel, Emanuele Castorina +11
[Abridged] We study the abundance and clustering properties of HI at redshifts using TNG100, a large state-of-the-art magneto-hydrodynamic simulation of a 75 Mpc/h bo…
Primordial non-Gaussianities and zero bias tracers of the Large Scale Structure
Emanuele Castorina, Yu Feng, Uros Seljak +1
We develop a new method to constraint primordial non-Gaussianities of the local kind using unclustered tracers of the Large Scale Structure. We show that in the limit of low noise,…
The Zeldovich approximation and wide-angle redshift-space distortions
Emanuele Castorina, Martin White
The contribution of line-of-sight peculiar velocities to the observed redshift of objects breaks the translational symmetry of the underlying theory, modifying the predicted 2-poin…