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A Spectroscopic Road Map for Cosmic Frontier: DESI, DESI-II, Stage-5
David J. Schlegel, Simone Ferraro, Greg Aldering +62
In this white paper, we present an experimental road map for spectroscopic experiments beyond DESI. DESI will be a transformative cosmological survey in the 2020s, mapping 40 milli…
LATIS: The Ly Tomography IMACS Survey
Andrew B. Newman, Gwen C. Rudie, Guillermo A. Blanc +15
We introduce LATIS, the Ly Tomography IMACS Survey, a spectroscopic survey at Magellan designed to map the z=2.2-2.8 intergalactic medium (IGM) in three dimensions by observing…
Inflation and Dark Energy from spectroscopy at
Simone Ferraro, Michael J. Wilson, Muntazir Abidi +140
The expansion of the Universe is understood to have accelerated during two epochs: in its very first moments during a period of Inflation and much more recently, at , when D…
Cosmological Perturbation Theory Using the FFTLog: Formalism and Connection to QFT Loop Integrals
Marko Simonović, Tobias Baldauf, Matias Zaldarriaga +2
We present a new method for calculating loops in cosmological perturbation theory. This method is based on approximating a CDM-like cosmology as a finite sum of complex power-la…
Probing the Dependence of the Intergalactic Medium on Large Scale Environment Using the Low Redshift Lyman Alpha Forest
Stephanie Tonnesen, Britton D. Smith, Juna Kollmeier +1
We examine the statistics of the low-redshift Ly-alpha forest in an adaptive mesh refinement hydrodynamic cosmological simulation of sufficient volume to include distinct large-sca…
The Carnegie-Chicago Hubble Program. I. An Independent Approach to the Extragalactic Distance Scale Using only Population II Distance Indicators
Rachael L. Beaton, Wendy L. Freedman, Barry F. Madore +15
We present an overview of the Carnegie-Chicago Hubble Program, an ongoing program to obtain a 3 per cent measurement of the Hubble constant using alternative methods to the traditi…