Density split statistics: Cosmological constraints from counts and lensing in cells in DES Y1 and SDSS data
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Author
Gruen, D.Friedrich, O.
Krause, E.
DeRose, J.
Cawthon, R.
Davis, C.
Elvin-Poole, J.
Rykoff, E. S.
Wechsler, R. H.
Alarcon, A.
Bernstein, G. M.
Blazek, J.
Chang, C.
Clampitt, J.
Crocce, M.
De Vicente, J.
Gatti, M.
Gill, M. S. S.
Hartley, W. G.
Hilbert, S.
Hoyle, B.
Jain, B.
Jarvis, M.
Lahav, O.
MacCrann, N.
McClintock, T.
Prat, J.
Rollins, R. P.
Ross, A. J.
Rozo, E.
Samuroff, S.
Sánchez, C.

Sheldon, E.
Troxel, M. A.
Zuntz, J.
Abbott, T. M. C.
Abdalla, F. B.
Allam, S.
Annis, J.
Bechtol, K.
Benoit-Lévy, A.
Bertin, E.
Bridle, S. L.
Brooks, D.
Buckley-Geer, E.
Carnero Rosell, A.
Carrasco Kind, M.
Carretero, J.
Cunha, C. E.
D’Andrea, C. B.
da Costa, L. N.
Desai, S.
Diehl, H. T.
Dietrich, J. P.
Doel, P.
Drlica-Wagner, A.
Fernandez, E.
Flaugher, B.
Fosalba, P.
Frieman, J.
García-Bellido, J.
Gaztanaga, E.
Giannantonio, T.
Gruendl, R. A.
Gschwend, J.
Gutierrez, G.
Honscheid, K.
James, D. J.
Jeltema, T.
Kuehn, K.
Kuropatkin, N.
Lima, M.
March, M.
Marshall, J. L.
Martini, P.
Melchior, P.
Menanteau, F.
Miquel, R.
Mohr, J. J.
Plazas, A. A.
Roodman, A.
Sanchez, E.
Scarpine, V.
Schubnell, M.
Sevilla-Noarbe, I.
Smith, M.
Smith, R. C.
Soares-Santos, M.
Sobreira, F.
Swanson, M. E. C.
Tarle, G.
Thomas, D.
Vikram, V.
Walker, A. R.
Weller, J.
Zhang, Y.
Affiliation
Univ Arizona, Dept PhysIssue Date
2018-07-13
Metadata
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AMER PHYSICAL SOCCitation
D. Gruen, O. Friedrich, E. Krause, J. Derose, R. Cawthon, et al.. Density Split Statistics: Cosmological Constraints from Counts and Lensing in Cells in DES Y1 and SDSS Data. Phys.Rev.D, 2018, 98 (2), pp.023507. DOI:10.1103/PhysRevD.98.023507Journal
PHYSICAL REVIEW DRights
© 2018 American Physical Society.Collection Information
This item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.Abstract
We derive cosmological constraints from the probability distribution function (PDF) of evolved large-scale matter density fluctuations. We do this by splitting lines of sight by density based on their count of tracer galaxies, and by measuring both gravitational shear around and counts-in-cells in overdense and underdense lines of sight, in Dark Energy Survey (DES) First Year and Sloan Digital Sky Survey (SDSS) data. Our analysis uses a perturbation theory model [O. Friedrich et al., Phys. Rev. D 98, 023508 (2018)] and is validated using N-body simulation realizations and log-normal mocks. It allows us to constrain cosmology, bias and stochasticity of galaxies with respect to matter density and, in addition, the skewness of the matter density field. From a Bayesian model comparison, we find that the data weakly prefer a connection of galaxies and matter that is stochastic beyond Poisson fluctuations on <= 20 arcmin angular smoothing scale. The two stochasticity models we fit yield DES constraints on the matter density Omega(m) = 0.26(-0.04)(+0.05) and Omega(m) = 0.28(-0.03)(+0.04) that are consistent with each other. These values also agree with the DES analysis of galaxy and shear two-point functions (3x2pt, DES Collaboration et al.) that only uses second moments of the PDF. Constraints on s 8 are model dependent (sigma(8) = 0.97(-0.06)(+0.07) and 0.80(-0.07)(+0.06) for the two stochasticity models), but consistent with each other and with the 3 x 2pt results if stochasticity is at the low end of the posterior range. As an additional test of gravity, counts and lensing in cells allow to compare the skewness S-3 of the matter density PDF to its Lambda CDM prediction. We find no evidence of excess skewness in any model or data set, with better than 25 per cent relative precision in the skewness estimate from DES alone.ISSN
2470-00102470-0029
0004-6361
0004-6361
Version
Final published versionSponsors
NASA through Einstein Postdoctoral Fellowship - Chandra X-ray Center [PF5-160138]; NASA [NAS8-03060]; Deutsche Forschungsgemeinschaft (DFG) [SFB-Transregio 33]; DFG Cluster of Excellence 'Origin and Structure of the Universe'; U.S. Department of Energy; U.S. National Science Foundation; Ministry of Science and Education of Spain; Science and Technology Facilities Council of the United Kingdom; Higher Education Funding Council for England; National Center for Supercomputing Applications at the University of Illinois at Urbana-Champaign; Kavli Institute of Cosmological Physics at the University of Chicago; Center for Cosmology and Astro-Particle Physics at the Ohio State University; Mitchell Institute for Fundamental Physics and Astronomy at Texas AM University; Financiadora de Estudos e Projetos; Fundacao Carlos Chagas Filho de Amparo a Pesquisa do Estado do Rio de Janeiro; Conselho Nacional de Desenvolvimento Cientifico e Tecnologico and the Ministerio da Ciencia; Tecnologia e Inovacao; Deutsche Forschungsgemeinschaft; Collaborating Institutions in the Dark Energy Survey; Argonne National Laboratory; University of California at Santa Cruz; University of Cambridge; Centro de Investigaciones Energeticas; Medioambientales y Tecnologicas-Madrid; University of Chicago; University College London; DES-Brazil Consortium; University of Edinburgh; Eidgenossische Technische Hochschule (ETH) Zurich; Fermi National Accelerator Laboratory; University of Illinois at Urbana-Champaign; Institut de Ciencies de l'Espai (IEEC/CSIC); Institut de Fisica d'Altes Energies; Lawrence Berkeley National Laboratory; Ludwig-Maximilians Universitat Munchen; Excellence Cluster Universe; University of Michigan; National Optical Astronomy Observatory; University of Nottingham; Ohio State University; University of Pennsylvania; University of Portsmouth; SLAC National Accelerator Laboratory; Stanford University; University of Sussex; Texas AM University; OzDES Membership Consortium; National Science Foundation [AST-1138766, AST-1536171]; MINECO [AYA2015-71825, ESP2015-88861, FPA2015-68048, SEV-2012-0234, SEV-2016-0597, MDM-2015-0509]; ERDF funds from the European Union; CERCA program of the Generalitat de Catalunya; European Research Council under the European Union's Seventh Framework Program (FP7); ERC [240672, 291329, 306478]; Australian Research Council Centre of Excellence for All-sky Astrophysics (CAASTRO) [CE110001020]; Fermi Research Alliance, LLC [DE-AC02-07CH11359]; U.S. Department of Energy, Office of Science, Office of High Energy PhysicsAdditional Links
https://link.aps.org/doi/10.1103/PhysRevD.98.023507ae974a485f413a2113503eed53cd6c53
10.1103/PhysRevD.98.023507