WFIRST Science Investigation Team "Cosmology with the High Latitude Survey" Annual Report 2017
arXiv:1804.03628
Abstract
Cosmic acceleration is the most surprising cosmological discovery in many decades. Testing and distinguishing among possible explanations requires cosmological measurements of extremely high precision probing the full history of cosmic expansion and structure growth and, ideally, compare and contrast matter and relativistic tracers of the gravity potential. This program is one of the defining objectives of the Wide-Field Infrared Survey Telescope (WFIRST), as set forth in the New Worlds, New Horizons report (NWNH) in 2010. The WFIRST mission has the ability to improve these measurements by 1-2 orders of magnitude compared to the current state of the art, while simultaneously extending their redshift grasp, greatly improving control of systematic effects, and taking a unified approach to multiple probes that provide complementary physical information and cross-checks of cosmological results. We describe in this annual report the activities of the Science Investigation Team (SIT) "Cosmology with the High Latitude Survey (HLS)" during the year 2017. This team was selected by NASA in December 2015 in order to address the stringent challenges of the WFIRST dark energy (DE) program through the Project's formulation phase. This SIT has elected to jointly address Galaxy Redshift Survey, Weak Lensing and Cluster Growth and thus fully embrace the fact that the imaging and spectroscopic elements of the HLS will be realized as an integrated observing program, and they jointly impose requirements on performance and operations. WFIRST is designed to be able to deliver a definitive result on the origin of cosmic acceleration. It is not optimized for Figure of Merit sensitivity but for control of systematic uncertainties and for having multiple techniques each with multiple cross-checks. Our SIT work focuses on understanding the potential systematics in the WFIRST DE measurements.
arXiv commentThis document is an annual report. A higher version of this document can be found here (http://www.wfirst-hls-cosmology.org/products/). This document does not constitute an official WFIRST Project document
References in corpus (20)
- The Dust Content and Opacity of Actively Star-Forming Galaxies
- Simulating the joint evolution of quasars, galaxies and their large-scale distribution
- Stable clustering, the halo model and nonlinear cosmological power spectra
- Beyond the Cosmological Standard Model
- Wide-Field InfrarRed Survey Telescope-Astrophysics Focused Telescope Assets WFIRST-AFTA 2015 Report
- Cosmological implications of baryon acoustic oscillation (BAO) measurements
- A test of the nature of cosmic acceleration using galaxy redshift distortions
- The Shear TEsting Programme 1: Weak lensing analysis of simulated ground-based observations
- Evidence for the accelerated expansion of the Universe from weak lensing tomography with COSMOS
- Galacticus: A Semi-Analytic Model of Galaxy Formation
- Dust extinction from Balmer decrements of star-forming galaxies at 0.75<z<1.5 with HST/WFC3 spectroscopy from the WISP survey
- Mapping the Galaxy Color-Redshift Relation: Optimal Photometric Redshift Calibration Strategies for Cosmology Surveys
- Image Analysis for Cosmology: Results from the GREAT10 Galaxy Challenge
- Results of the GREAT08 Challenge: An image analysis competition for cosmological lensing
- The clustering of H-alpha emitters at z=2.23 from HiZELS
- Looking through the same lens: shear calibration for LSST, Euclid & WFIRST with stage 4 CMB lensing
- Large Covariance Matrices: Smooth Models from the 2-Point Correlation Function
- Halo Occupation Distribution Modeling of Green Valley Galaxies
- Using Cross-Correlations to Calibrate Lensing Source Redshift Distributions: Improving Cosmological Constraints from Upcoming Weak Lensing Surveys
- The Synergy between Weak Lensing and Galaxy Redshift Surveys
Cited by in corpus (31)
- Probing the theory of gravity with gravitational lensing of gravitational waves and galaxy surveys
- Accurate precision Cosmology with redshift unknown gravitational wave sources
- The Completed SDSS-IV extended Baryon Oscillation Spectroscopic Survey: Growth rate of structure measurement from anisotropic clustering analysis in configuration space between redshift 0.6 and 1.1 for the Emission Line Galaxy sample
- The completed SDSS-IV extended Baryon Oscillation Spectroscopic Survey: Large-scale Structure Catalogues and Measurement of the isotropic BAO between redshift 0.6 and 1.1 for the Emission Line Galaxy Sample
- The High Latitude Spectroscopic Survey on the Nancy Grace Roman Space Telescope
- Testing the general theory of relativity using gravitational wave propagation from dark standard sirens
- Multi-messenger tests of gravity with weakly lensed gravitational waves
- Properties and characteristics of the WFIRST H4RG-10 detectors
- Strong constraints on decay and annihilation of dark matter from heating of gas-rich dwarf galaxies
- Time-dependence of the astrophysical stochastic gravitational wave background
- Cosmology with the Wide-Field Infrared Survey Telescope -- Synergies with the Rubin Observatory Legacy Survey of Space and Time
- From Dark Matter to Galaxies with Convolutional Networks
- RascalC: A Jackknife Approach to Estimating Single and Multi-Tracer Galaxy Covariance Matrices
- Biased Tracers of Two Fluids in the Lagrangian Picture
- Cosmology with Stacked Cluster Weak Lensing and Cluster-Galaxy Cross-Correlations
- A Synthetic Roman Space Telescope High-Latitude Imaging Survey: Simulation Suite and the Impact of Wavefront Errors on Weak Gravitational Lensing
- Stellar prospects for FRB gravitational lensing
- Large Covariance Matrices: Accurate Models Without Mocks
- BAO reconstruction: a swift numerical action method for massive spectroscopic surveys
- Accurate effective fluid approximation for ultralight axions
- Covariance matrices for galaxy cluster weak lensing: from virial regime to uncorrelated large-scale structure
- Cosmic Near-infrared Background Tomography with SPHEREx Using Galaxy Cross-correlations
- Mitigating the effects of undersampling in weak lensing shear estimation with metacalibration
- Fundamental physics using the temporal gravitational wave background
- RSD measurements from BOSS galaxy power spectrum using the halo perturbation theory model
- Forecasts for Broadband Intensity Mapping of the Ultraviolet-Optical Background with CASTOR and SPHEREx
- Impact of Image Persistence in the Roman Space Telescope High-Latitude Survey
- Spot-Based Measurement of the Brighter-Fatter Effect on a Roman Space Telescope H4RG Detector and Comparison with Flat-Field Data
- Mapping the cosmic expansion history from LIGO-Virgo-KAGRA in synergy with DESI and SPHEREx
- Cosmological consequences of intrinsic alignments super-sample covariance
- CosmoGLINT: Cosmological Generative Model for Line Intensity Mapping with Transformer