3 papers
astro-ph.CO2026
Measurement of the galaxy-velocity power spectrum of DESI tracers with the kinematic Sunyaev-Zeldovich effect using DESI DR2 and ACT DR6
Edmond Chaussidon, Selim C. Hotinli, Simone Ferraro +49
Joint analyses of high-resolution CMB temperature maps with galaxy surveys provide a unique way to reconstruct the radial velocity field of the underlying matter distribution via t…
astro-ph.CO2024
Probing primordial non-Gaussianity by reconstructing the initial conditions
Xinyi Chen, Nikhil Padmanabhan, Daniel J. Eisenstein
We propose to constrain the primordial (local-type) non-Gaussianity signal by first reconstructing the initial density field to remove the late time non-Gaussianities introduced by…
astro-ph.CO2023
Analysis of an iterative reconstruction method in comparison of the standard reconstruction method
Xinyi Chen, Nikhil Padmanabhan
We present a detailed analysis of a new, iterative density reconstruction algorithm. This algorithm uses a decreasing smoothing scale to better reconstruct the density field in Lag…