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WFIRST Science Investigation Team "Cosmology with the High Latitude Survey" Annual Report 2017

Doré, Olivier and Hirata, Christopher and Wang, Yun and Weinberg, David and Baronchelli, Ivano and Benson, Andrew and Capak, Peter and Choi, Ami and Eifler, Tim and Hemmati, Shoubaneh and Ho, Shirley and Izard, Albert and Jain, Bhuvnesh and Jarvis, Mike and Kiessling, Alina and Krause, Elisabeth and Massara, Elena and Masters, Dan and Merson, Alex and Miyatake, Hironao and Malagon, Andres Plazas and Mandelbaum, Rachel and Samushia, Lado and Shapiro, Chaz and Simet, Melanie and Spergel, David and Teplitz, Harry and Troxel, Michael and Bean, Rachel and Colbert, James and Heinrich, Chen He and Heitmann, Katrin and Helou, George and Hudson, Michael and Huff, Eric and Leauthaud, Alexie and MacCrann, Niall and Padmanabhan, Nikhil and Pisani, Alice and Rhodes, Jason and Rozo, Eduardo and Seiffert, Mike and Smith, Kendrick and Takada, Masahiro and von der Linden, Anja and Lupton, Robert and Yoshida, Naoki and Wu, Hao-Yi and Zu, Ying (2018) WFIRST Science Investigation Team "Cosmology with the High Latitude Survey" Annual Report 2017. . (Submitted)

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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.

Item Type:Report or Paper (Discussion Paper)
Related URLs:
URLURL TypeDescription Paper
Doré, Olivier0000-0002-5009-7563
Hirata, Christopher0000-0002-2951-4932
Baronchelli, Ivano0000-0003-0556-2929
Benson, Andrew0000-0001-5501-6008
Capak, Peter0000-0003-3578-6843
Eifler, Tim0000-0002-1894-3301
Hemmati, Shoubaneh0000-0003-2226-5395
Masters, Dan0000-0001-5382-6138
Mandelbaum, Rachel0000-0003-2271-1527
Spergel, David0000-0002-5151-0006
Teplitz, Harry0000-0002-7064-5424
Helou, George0000-0003-3367-3415
Huff, Eric0000-0002-9378-3424
Leauthaud, Alexie0000-0002-3677-3617
Rhodes, Jason0000-0002-4485-8549
Lupton, Robert0000-0003-1666-0962
Additional Information:We warmly thank our colleagues from the WFIRST Project Office and all the Science Investigation Teams for continuous constructive and stimulating interactions. We acknowledge use of the Annual Review of Astronomy and Astrophysics LaTeX template as a basis for our report. Part of this research was carried out at the Jet Propulsion Laboratory, California Institute of Technology, under a contract with the National Aeronautics and Space Administration. The decision to implement the WFIRST mission will not be finalized until NASA's completion of the National Environmental Policy Act (NEPA) process. This document is being made available for information purposes only.
Group:COSMOS, Infrared Processing and Analysis Center (IPAC)
Funding AgencyGrant Number
Record Number:CaltechAUTHORS:20180904-161455265
Persistent URL:
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:89371
Deposited By: Tony Diaz
Deposited On:04 Sep 2018 23:36
Last Modified:09 Mar 2020 13:19

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