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 (US) |
---|---|
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 |
All Science Journal Classification (ASJC) codes
- Astronomy and Astrophysics
- Space and Planetary Science
Keywords
- Cosmology: observations
- Gravitational lensing: weak
- Large-scale structure of Universe
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In: Monthly Notices of the Royal Astronomical Society, Vol. 490, No. 3, 01.12.2019, p. 3573-3587.
Research output: Contribution to journal › Article › peer-review
TY - JOUR
T1 - Dark energy survey year 1 results
T2 - The relationship between mass and light around cosmic voids
AU - DES Collaboration
AU - Fang, Y.
AU - Hamaus, N.
AU - Jain, B.
AU - Pandey, S.
AU - Pollina, G.
AU - Sánchez, C.
AU - Kovács, A.
AU - Chang, C.
AU - Carretero, J.
AU - Castander, F. J.
AU - Choi, A.
AU - Crocce, M.
AU - DeRose, J.
AU - Fosalba, P.
AU - Gatti, M.
AU - Gaztañaga, E.
AU - Gruen, D.
AU - Hartley, W. G.
AU - Hoyle, B.
AU - MacCrann, N.
AU - Prat, J.
AU - Rau, M. M.
AU - Rykoff, E. S.
AU - Samuroff, S.
AU - Sheldon, E.
AU - Troxel, M. A.
AU - Vielzeuf, P.
AU - Zuntz, J.
AU - Annis, J.
AU - Avila, S.
AU - Bertin, E.
AU - Brooks, D.
AU - Burke, D. L.
AU - Carnero Rosell, A.
AU - Carrasco Kind, M.
AU - Cawthon, R.
AU - da Costa, L. N.
AU - de Vicente, J.
AU - Desai, S.
AU - Diehl, H. T.
AU - Dietrich, J. P.
AU - Doel, P.
AU - Everett, S.
AU - Evrard, A. E.
AU - Flaugher, B.
AU - Frieman, J.
AU - García-Bellido, J.
AU - Gerdes, D. W.
AU - Gruendl, R. A.
AU - Melchior, P.
N1 - Funding Information: 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'Informació Científica (PIC), maintained through a collaboration of the Institut de Física d'Altes Energies (IFAE) and the Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT), and was partially funded by the 'Plan Estatal de Investigación Científica y Técnica y de Innovación' 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, Fundação Carlos Chagas Filho de Amparo à Pesquisa do Estado do Rio de Janeiro, Conselho Nacional de Desenvolvimento Científico e Tecnológico and the Ministério da Ciência, Tecnologia e Inovação, 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 Energéticas, Medioambientales y Tecnológicas-Madrid, the University of Chicago, University College London, the DES-Brazil Consortium, the University of Edinburgh, the Eidgenössische Technische Hochschule (ETH) Zürich, Fermi National Accelerator Laboratory, the University of Illinois at Urbana-Champaign, the Institut de Ciències de l'Espai (IEEC/CSIC), the Institut de Física d'Altes Energies, Lawrence Berkeley National Laboratory, the Ludwig-Maximilians Universität München 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 Ciência 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. Funding Information: 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 Ciência e Tecnologia (INCT) e-Universe (CNPq grant 465376/2014-2). Funding Information: 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. Funding Information: 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, Fundac¸ão Carlos Chagas Filho de Amparo à Pesquisa do Estado do Rio de Janeiro, Conselho Nacional de Desenvolvimento Científico e Tecnológico Funding Information: 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. Funding Information: This work has made use of CosmoHub, see Carretero et al. (2017). CosmoHub has been developed by the Port d’Informació Científica (PIC), maintained through a collaboration of the Institut de Física d’Altes Energies (IFAE) and the Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT), and was partially funded by the ‘Plan Estatal de Investigación Científica y Técnica y de Innovación’ program of the Spanish government. Publisher Copyright: © 2019 The Author(s)
PY - 2019/12/1
Y1 - 2019/12/1
N2 - 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.
AB - 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.
KW - Cosmology: observations
KW - Gravitational lensing: weak
KW - Large-scale structure of Universe
UR - http://www.scopus.com/inward/record.url?scp=85079677795&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85079677795&partnerID=8YFLogxK
U2 - 10.1093/mnras/stz2805
DO - 10.1093/mnras/stz2805
M3 - Article
AN - SCOPUS:85079677795
SN - 0035-8711
VL - 490
SP - 3573
EP - 3587
JO - Monthly Notices of the Royal Astronomical Society
JF - Monthly Notices of the Royal Astronomical Society
IS - 3
ER -