Stickley, Nathaniel R. and Capak, Peter and Masters, Daniel and de Putter, Roland and Doré, Olivier and Bock, Jamie (2016) An Empirical Approach to Cosmological Galaxy Survey Simulation: Application to SPHEREx Low-Resolution Spectroscopy. . (Unpublished) https://resolver.caltech.edu/CaltechAUTHORS:20180911-163142346
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Abstract
Highly accurate models of the galaxy population over cosmological volumes are necessary in order to predict the performance of upcoming cosmological missions. We present a data-driven model of the galaxy population constrained by deep 0.1-8 μm imaging and spectroscopic data in the COSMOS survey, with the immediate goal of simulating the spectroscopic redshift performance of the proposed SPHEREx mission. SPHEREx will obtain over the full-sky R∼41 spectrophotometry at moderate spatial resolution (∼6") over the wavelength range 0.75-4.18 μm and R∼135 over the wavelength range 4.18-5 μm. We show that our simulation accurately reproduces a range of known galaxy properties, encapsulating the full complexity of the galaxy population and enables realistic, full end-to-end simulations to predict mission performance. Finally, we discuss potential applications of the simulation framework to future cosmology missions and give a description of released data products.
Item Type: | Report or Paper (Discussion Paper) | ||||||||||
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Additional Information: | Part of the research described in this paper was carried out at the Jet Propulsion Laboratory, California Institute of Technology, under a contract with the National Aeronautics and Space Administration. RdP and OD acknowledge the generous support of the Heising-Simons Foundation. | ||||||||||
Group: | COSMOS, Infrared Processing and Analysis Center (IPAC) | ||||||||||
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Subject Keywords: | techniques: photometric - techniques: spectroscopic - surveys - cosmology: cosmological parameters - cosmology: observations | ||||||||||
Record Number: | CaltechAUTHORS:20180911-163142346 | ||||||||||
Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20180911-163142346 | ||||||||||
Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | ||||||||||
ID Code: | 89537 | ||||||||||
Collection: | CaltechAUTHORS | ||||||||||
Deposited By: | George Porter | ||||||||||
Deposited On: | 12 Sep 2018 14:27 | ||||||||||
Last Modified: | 03 Oct 2019 20:17 |
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