Dark energy survey year 1 results: Constraining baryonic physics in the Universe

Hung-Jin Huang; Tim Eifler; Rachel Mandelbaum; Gary M. Bernstein; Anqi Chen; Ami Choi; Juan Garcia-Bellido; Dragan Huterer; Elisabeth Krause; Eduardo Rozo; Sukhdeep Singh; Sarah Bridle; Joseph DeRose; Jack Elvin-Poole; Xiao Fang; Oliver Friedrich; Marco Gatti; Enrique Gaztanaga; Daniel Gruen; Will Hartley; Ben Hoyle; Mike Jarvis; Niall MacCrann; Vivian Miranda; Markus Rau; Judit Prat; Carles Sanchez; Simon Samuroff; Michael Troxel; Joe Zuntz; Tim Abbott; Michel Aguena; James Annis; Santiago Avila; Matthew Becker; Emmanuel Bertin; David Brooks; David Burke; Aurelio Carnero Rosell; Matias Carrasco Kind; Jorge Carretero; Francisco Javier Castander; Luiz da Costa; Juan De Vicente; Joerg Dietrich; Peter Doel; Spencer Everett; Brenna Flaugher; Pablo Fosalba; Josh Frieman; Robert Gruendl; Gaston Gutierrez; Samuel Hinton; Klaus Honscheid; David James; Kyler Kuehn; Ofer Lahav; Marcos Lima; Marcio Maia; Jennifer Marshall; Felipe Menanteau; Ramon Miquel; Francisco Paz-Chinchon; Andres Plazas Malagon; Kathy Romer; Aaron Roodman; Eusebio Sanchez; Vic Scarpine; Santiago Serrano; Ignacio Sevilla; Mathew Smith; Marcelle Soares-Santos; Eric Suchyta; Molly Swanson; Gregory Tarle; Diehl H. Thomas; Jochen Weller; DES Collaboration

doi:10.1093/mnras/stab357

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Dark energy survey year 1 results: Constraining baryonic physics in the Universe

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Dark energy survey year 1 results: Constraining baryonic physics in the Universe

Hung-Jin Huang, Tim Eifler, Rachel Mandelbaum, Gary M. Bernstein, Anqi Chen, Ami Choi, Juan Garcia-Bellido, Dragan Huterer, Elisabeth Krause, Eduardo Rozo, …

Monthly notices of the Royal Astronomical Society, Vol.502(4), pp.6010-6031

04/01/2021

DOI: https://doi.org/10.1093/mnras/stab357

Abstract

Astronomy & Astrophysics

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Physical Sciences

Measurements of large-scale structure are interpreted using theoretical predictions for the matter distribution, including potential impacts of baryonic physics. We constrain the feedback strength of baryons jointly with cosmology using weak lensing and galaxy clustering observables (3 x 2pt) of Dark Energy Survey (DES) Year 1 data in combination with external information from baryon acoustic oscillations (BAO) and Planck cosmic microwave background polarization. Our baryon modelling is informed by a set of hydrodynamical simulations that span a variety of baryon scenarios; we span this space via a Principal Component (PC) analysis of the summary statistics extracted from these simulations. We show that at the level of DES Y1 constraining power, one PC is sufficient to describe the variation of baryonic effects in the observables, and the first PC amplitude (Q(1)) generally reflects the strength of baryon feedback. With the upper limit of Q(1) prior being bound by the Illustris feedback scenarios, we reach similar to 20 per cent improvement in the constraint of S-8 = sigma(8)(Omega(m)/0.3)0.5 = 0.788(-0.021)(+0.018) compared to the original DES 3 x 2pt analysis. This gain is driven by the inclusion of small-scale cosmic shear information down to 2.5 arcmin, which was excluded in previous DES analyses that did not model baryonic physics. We obtain S-8 = 0.781(-0.015)(+0.014) for the combined DES Y1+Planck EE+BAO analysis with a non-informative Q(1) prior. In terms of the baryon constraints, we measure Q(1) = 1.14(-2.80)(+2.20) for DES Y1 only and Q(1) = 1.42(-1.48)(+1.63) for DESY1+Planck EE+BAO, allowing us to exclude one of the most extreme AGN feedback hydrodynamical scenario at more than 2 sigma.

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Title: Dark energy survey year 1 results: Constraining baryonic physics in the Universe
Creators: Hung-Jin Huang - Carnegie Mellon University
Tim Eifler - University of Arizona
Rachel Mandelbaum - Carnegie Mellon University
Gary M. Bernstein - University of Pennsylvania
Anqi Chen - University of Michigan
Ami Choi - The Ohio State University
Juan Garcia-Bellido - Universidad Autónoma de Madrid
Dragan Huterer - Univ Michigan, Dept Phys, Ann Arbor, MI 48109 USA
Elisabeth Krause - University of Arizona
Eduardo Rozo - University of Arizona
Sukhdeep Singh - University of California, Berkeley
Sarah Bridle - University of Manchester
Joseph DeRose - University of California, Berkeley
Jack Elvin-Poole - The Ohio State University
Xiao Fang - University of Arizona
Oliver Friedrich - University of Cambridge
Marco Gatti - Institute for High Energy Physics
Enrique Gaztanaga - Institut d'Estudis Espacials de Catalunya
Daniel Gruen - Kavli Institute for Particle Astrophysics and Cosmology
Will Hartley - ETH Zurich
Ben Hoyle - Ludwig-Maximilians-Universität München
Mike Jarvis - University of Pennsylvania
Niall MacCrann - The Ohio State University
Vivian Miranda - University of Arizona
Markus Rau - Carnegie Mellon University
Judit Prat - University of Chicago
Carles Sanchez - University of Pennsylvania
Simon Samuroff - Carnegie Mellon University
Michael Troxel - Duke University
Joe Zuntz - UK Astronomy Technology Centre
Tim Abbott - Cerro Tololo Inter-American Observatory
Michel Aguena - Laboratório Interinstitucional de e-Astronomia
James Annis - Fermi National Accelerator Laboratory
Santiago Avila - Universidad Autónoma de Madrid
Matthew Becker - Argonne National Laboratory
Emmanuel Bertin - Centre National de la Recherche Scientifique
David Brooks - UCL, Dept Phys & Astron, Gower St, London WC1E 6BT, England
David Burke - Kavli Institute for Particle Astrophysics and Cosmology
Aurelio Carnero Rosell - Inst Astrofis Canarias, E-38205 San Cristobal la Laguna, Spain
Matias Carrasco Kind - National Center for Supercomputing Applications
Jorge Carretero - Institute for High Energy Physics
Francisco Javier Castander - Inst Estudis Espacials Catalunya IEEC, E-08034 Barcelona, Spain
Luiz da Costa - Laboratório Interinstitucional de e-Astronomia
Juan De Vicente - Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas
Joerg Dietrich - Ludwig-Maximilians-Universität München
Peter Doel - UCL, Dept Phys & Astron, Gower St, London WC1E 6BT, England
Spencer Everett - Santa Cruz Inst Particle Phys, Santa Cruz, CA 95064 USA
Brenna Flaugher - Fermi National Accelerator Laboratory
Pablo Fosalba - Institut d'Estudis Espacials de Catalunya
Josh Frieman - Fermi National Accelerator Laboratory
Robert Gruendl - National Center for Supercomputing Applications
Gaston Gutierrez - Fermilab Natl Accelerator Lab, POB 500, Batavia, IL 60510 USA
Samuel Hinton - The University of Queensland
Klaus Honscheid - The Ohio State University
David James - Harvard & Smithsonian, Ctr Astrophys, 60 Garden St, Cambridge, MA 02138 USA
Kyler Kuehn - Australian Astronomical Observatory
Ofer Lahav - UCL, Dept Phys & Astron, Gower St, London WC1E 6BT, England
Marcos Lima - Laboratório Interinstitucional de e-Astronomia
Marcio Maia - Laboratório Interinstitucional de e-Astronomia
Jennifer Marshall - Mitchell Institute
Felipe Menanteau - National Center for Supercomputing Applications
Ramon Miquel - Institució Catalana de Recerca i Estudis Avançats
Francisco Paz-Chinchon - University of Cambridge
Andres Plazas Malagon - Princeton University
Kathy Romer - University of Sussex
Aaron Roodman - Kavli Institute for Particle Astrophysics and Cosmology
Eusebio Sanchez - Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas
Vic Scarpine - Fermi National Accelerator Laboratory
Santiago Serrano - Institut d'Estudis Espacials de Catalunya
Ignacio Sevilla - Medioambientales & Tecnol CIEMAT, Ctr Invest Energet, Madrid 04200, Spain
Mathew Smith - University of Southampton
Marcelle Soares-Santos - Brandeis University, Martin A. Fisher School of Physics
Eric Suchyta - Oak Ridge National Laboratory
Molly Swanson - National Center for Supercomputing Applications
Gregory Tarle - University of Michigan
Diehl H. Thomas - Fermi National Accelerator Laboratory
Jochen Weller - Ludwig-Maximilians-Universität München
DES Collaboration
Publication Details: Monthly notices of the Royal Astronomical Society, Vol.502(4), pp.6010-6031
Publisher: Oxford Univ Press
Number of pages: 22
Grant note: 16-ADAP16-0116; DE-SC0020215 / NASA ROSES ADAP ST/R000972/1; ST/T000473/1; ST/M001229/1 / Science and Technology Facilities Council; UK Research & Innovation (UKRI); Science & Technology Facilities Council (STFC) DE-SC0010118 / Department of Energy Cosmic Frontier program DE-SC0020215 / U.S. Department of Energy (DOE) ST/R000972/1; ST/T000473/1; ST/R000433/1; ST/T000414/1 / STFC; UK Research & Innovation (UKRI); Science & Technology Facilities Council (STFC)
Identifiers: 9924552855601921
Academic Unit: Martin A. Fisher School of Physics
Language: English
Resource Type: Journal article

Dark energy survey year 1 results: Constraining baryonic physics in the Universe

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