Abstract
What are the mass and galaxy profiles of cosmic voids? In this paper, we use two methods to extract voids in the Dark Energy Survey (DES) Year 1 redMaGiC galaxy sample to address this question. We use either 2D slices in projection, or the 3D distribution of galaxies based on photometric redshifts to identify voids. For the mass profile, we measure the tangential shear profiles of background galaxies to infer the excess surface mass density. The signal-to-noise ratio for our lensing measurement ranges between 10.7 and 14.0 for the two void samples. We infer their 3D density profiles by fitting models based on N-body simulations and find good agreement for void radii in the range 15-85 Mpc. Comparison with their galaxy profiles then allows us to test the relation between mass and light at the 10 per cent level, the most stringent test to date. We find very similar shapes for the two profiles, consistent with a linear relationship between mass and light both within and outside the void radius. We validate our analysis with the help of simulated mock catalogues and estimate the impact of photometric redshift uncertainties on the measurement. Our methodology can be used for cosmological applications, including tests of gravity with voids. This is especially promising when the lensing profiles are combined with spectroscopic measurements of void dynamics via redshift-space distortions.
Original language | English |
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Pages (from-to) | 3573-3587 |
Number of pages | 15 |
Journal | Monthly Notices of the Royal Astronomical Society |
Volume | 490 |
Issue number | 3 |
DOIs | |
State | Published - Dec 1 2019 |
Funding
This paper has gone through internal review by the DES collaboration. We are grateful to Arka Banerjee, Elena Massara, Alice Pisani, and Ravi Sheth for helpful discussions. NH and GP acknowledge support from the DFG cluster of excellence 'Origins' and the Trans-Regional Collaborative Research Center TRR 33 'The Dark Universe' of the DFG. YF and BJ are supported in part by the U.S. Department of Energy grant DE-SC0007901. This work has made use of CosmoHub, see Carretero et al. (2017). CosmoHub has been developed by the Port d'Informaci\u00F3 Cient\u00EDfica (PIC), maintained through a collaboration of the Institut de F\u00EDsica d'Altes Energies (IFAE) and the Centro de Investigaciones Energ\u00E9ticas, Medioambientales y Tecnol\u00F3gicas (CIEMAT), and was partially funded by the 'Plan Estatal de Investigaci\u00F3n Cient\u00EDfica y T\u00E9cnica y de Innovaci\u00F3n' program of the Spanish government. Funding for the DES Projects has been provided by the U.S. Department of Energy, the U.S. National Science Foundation, the Ministry of Science and Education of Spain, the Science and Technology Facilities Council of the United Kingdom, the Higher Education Funding Council for England, the National Center for Supercomputing Applications at the University of Illinois at Urbana-Champaign, the Kavli Institute of Cosmological Physics at the University of Chicago, the Center for Cosmology and Astro-Particle Physics at the Ohio State University, the Mitchell Institute for Fundamental Physics and Astronomy at Texas A&M University, Financiadora de Estudos e Projetos, Funda\u00E7\u00E3o Carlos Chagas Filho de Amparo \u00E0 Pesquisa do Estado do Rio de Janeiro, Conselho Nacional de Desenvolvimento Cient\u00EDfico e Tecnol\u00F3gico and the Minist\u00E9rio da Ci\u00EAncia, Tecnologia e Inova\u00E7\u00E3o, the Deutsche Forschungsgemeinschaft, and the Collaborating Institutions in the DES. The Collaborating Institutions are Argonne National Laboratory, the University of California at Santa Cruz, the University of Cambridge, Centro de Investigaciones Energ\u00E9ticas, Medioambientales y Tecnol\u00F3gicas-Madrid, the University of Chicago, University College London, the DES-Brazil Consortium, the University of Edinburgh, the Eidgen\u00F6ssische Technische Hochschule (ETH) Z\u00FCrich, Fermi National Accelerator Laboratory, the University of Illinois at Urbana-Champaign, the Institut de Ci\u00E8ncies de l'Espai (IEEC/CSIC), the Institut de F\u00EDsica d'Altes Energies, Lawrence Berkeley National Laboratory, the Ludwig-Maximilians Universit\u00E4t M\u00FCnchen and the associated Excellence Cluster Universe, the University of Michigan, the National Optical Astronomy Observatory, the University of Nottingham, The Ohio State University, the University of Pennsylvania, the University of Portsmouth, SLAC National Accelerator Laboratory, Stanford University, the University of Sussex, Texas A&M University, and the OzDES Membership Consortium. Based in part on observations at Cerro Tololo Inter-American Observatory, National Optical Astronomy Observatory, which is operated by the Association of Universities for Research in Astronomy (AURA) under a cooperative agreement with the National Science Foundation. The DES data management system is supported by the National Science Foundation under grant numbers AST-1138766 and AST-1536171. The DES participants from Spanish institutions are partially supported by MINECO under grants AYA2015-71825, ESP2015-66861, FPA2015-68048, SEV-2016-0588, SEV-2016-0597, and MDM-2015-0509, some of which include ERDF funds from the European Union. IFAE is partially funded by the CERCA program of the Generalitat de Catalunya. Research leading to these results has received funding from the European Research Council under the European Union's Seventh Framework Program (FP7/2007-2013) including ERC grant agreements 240672, 291329, and 306478. We acknowledge support from the Brazilian Instituto Nacional de Ci\u00EAncia e Tecnologia (INCT) e-Universe (CNPq grant 465376/2014-2). This manuscript has been authored by Fermi Research Alliance, LLC under Contract No. DE-AC02-07CH11359 with the U.S. Department of Energy, Office of Science, Office of High Energy Physics. The United States Government retains and the publisher, by accepting the article for publication, acknowledges that the United States Government retains a non-exclusive, paid-up, irrevocable, worldwide license to publish or reproduce the published form of this manuscript, or allow others to do so, for United States Government purposes. This paper has gone through internal review by the DES collaboration. We are grateful to Arka Banerjee, Elena Massara, Alice Pisani, and Ravi Sheth for helpful discussions. NH and GP acknowledge support from the DFG cluster of excellence \u2018Origins\u2019 and the Trans-Regional Collaborative Research Center TRR 33 \u2018The Dark Universe\u2019 of the DFG. YF and BJ are supported in part by the U.S. Department of Energy grant DE-SC0007901. The DES data management system is supported by the National Science Foundation under grant numbers AST-1138766 and AST-1536171. The DES participants from Spanish institutions are partially supported by MINECO under grants AYA2015-71825, ESP2015-66861, FPA2015-68048, SEV-2016-0588, SEV-2016-0597, and MDM-2015-0509, some of which include ERDF funds from the European Union. IFAE is partially funded by the CERCA program of the Generalitat de Catalunya. Research leading to these results has received funding from the European Research Council under the European Union\u2019s Seventh Framework Program (FP7/2007-2013) including ERC grant agreements 240672, 291329, and 306478. We acknowledge support from the Brazilian Instituto Nacional de Ci\u00EAncia e Tecnologia (INCT) e-Universe (CNPq grant 465376/2014-2). This manuscript has been authored by Fermi Research Alliance, LLC under Contract No. DE-AC02-07CH11359 with the U.S. Department of Energy, Office of Science, Office of High Energy Physics. The United States Government retains and the publisher, by accepting the article for publication, acknowledges that the United States Government retains a non-exclusive, paid-up, irrevocable, worldwide license to publish or reproduce the published form of this manuscript, or allow others to do so, for United States Government purposes.
Funders | Funder number |
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Mitchell Institute for Fundamental Physics and Astronomy at Texas A&M University | |
University of Illinois at Urbana-Champaign | |
United States Government | |
Spanish National Plan for Scientific and Technical Research and Innovation | |
Brazilian Instituto Nacional de Ciência e Tecnologia | |
University of Nottingham | |
University of Sussex | |
High Energy Physics | |
Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas | |
University of Edinburgh | |
Fundação Carlos Chagas Filho de Amparo à Pesquisa do Estado do Rio de Janeiro | |
Ohio State University | |
Stanford University | |
University of Chicago | |
Engineering Research Centers | |
Generalitat de Catalunya | |
Higher Education Funding Council for England | |
Financiadora de Estudos e Projetos | |
Ministry of Education and Science of Ukraine | |
Eidgenössische Technische Hochschule Zürich | |
University of California, Santa Cruz | |
Deutsche Forschungsgemeinschaft | |
European Commission | |
Instituto Nacional de Ciência e Tecnologia para Excitotoxicidade e Neuroproteção | |
SLAC National Accelerator Laboratory | |
Lawrence Berkeley National Laboratory | |
Fermilab | |
Seventh Framework Programme | |
Collaborating Institutions are Argonne National Laboratory | |
University College London | |
University of Portsmouth | |
Science and Technology Facilities Council of the United Kingdom | |
Ministério da Ciência, Tecnologia e Inovação | |
Office of Science | |
National Centre for Supercomputing Applications | |
European Research Council | |
European Regional Development Fund | |
University of Michigan | |
Institut de Física d'Altes Energies | |
University of Pennsylvania | |
Ludwig-Maximilians-Universität München | |
Texas A and M University | |
Institut de Ciències de l'Espai | |
U.S. Department of Energy | DE-SC0007901 |
National Science Foundation | 1138766, AST-1536171 |
Ministerio de Economía y Competitividad | SEV-2016-0588, SEV-2016-0597, ESP2015-66861, MDM-2015-0509, FPA2015-68048, AYA2015-71825 |
Seventh Framework Programme | 1138766, 240672, 306478, 291329 |
Fermi Research Alliance, LLC | DE-AC02-07CH11359 |
Conselho Nacional de Desenvolvimento Científico e Tecnológico | 465376/2014-2 |
Keywords
- Cosmology: observations
- Gravitational lensing: weak
- Large-scale structure of Universe