On the relative bias of void tracers in the Dark Energy Survey

G Pollina; N Hamaus; K Paech; K Dolag; J Weller; C Sánchez; E S Rykoff; B Jain; T M C Abbott; S Allam; S Avila; R A Bernstein; E Bertin; D Brooks; D L Burke; A Carnero Rosell; M Carrasco Kind; J Carretero; C E Cunha; L N da Costa; C B D’Andrea; J De Vicente; D L DePoy; S Desai; H T Diehl; P Doel; A E Evrard; B Flaugher; P Fosalba; J Frieman; J García-Bellido; D W Gerdes; T Giannantonio; D Gruen; J Gschwend; G Gutierrez; W G Hartley; D L Hollowood; K Honscheid; B Hoyle; D J James; T Jeltema; K Kuehn; N Kuropatkin; M Lima; M March; J L Marshall; P Melchior; F Menanteau; R Miquel; A A Plazas; A K Romer; E Sanchez; V Scarpine; R Schindler; M Schubnell; I Sevilla-Noarbe; M Smith; M Soares-Santos; F Sobreira; E Suchyta; G Tarle; A R Walker; W Wester; DES Collaboration

doi:10.1093/mnras/stz1470

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On the relative bias of void tracers in the Dark Energy Survey

Journal article

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On the relative bias of void tracers in the Dark Energy Survey

G Pollina, N Hamaus, K Paech, K Dolag, J Weller, C Sánchez, E S Rykoff, B Jain, T M C Abbott, S Allam, …

Monthly notices of the Royal Astronomical Society, Vol.487(2), pp.2836-2852

08/01/2019

DOI: https://doi.org/10.1093/mnras/stz1470

Abstract

Luminous tracers of large-scale structure are not entirely representative of the distribution of mass in our Universe. As they arise from the highest peaks in the matter density field, the spatial distribution of luminous objects is biased towards those peaks. On large scales, where density fluctuations are mild, this bias simply amounts to a constant offset in the clustering amplitude of the tracer, known as linear bias. In this work we focus on the relative bias between galaxies and galaxy clusters that are located inside and in the vicinity of cosmic voids, extended regions of relatively low density in the large-scale structure of the Universe. With the help of mock data we verify that the relation between galaxy and cluster overdensity around voids remains linear. Hence, the void-centric density profiles of different tracers can be linked by a single multiplicative constant. This amounts to the same value as the relative linear bias between tracers for the largest voids in the sample. For voids of small sizes, which typically arise in higher density regions, this constant has a higher value, possibly showing an environmental dependence similar to that observed for the linear bias itself. We confirm our findings by analysing data obtained during the first year of observations by the Dark Energy Survey. As a side product, we present the first catalogue of three-dimensional voids extracted from a photometric survey with a controlled photo-z uncertainty. Our results will be relevant in forthcoming analyses that attempt to use voids as cosmological probes.

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Title: On the relative bias of void tracers in the Dark Energy Survey
Creators: G Pollina - Ludwig-Maximilians-Universität München
N Hamaus - Ludwig-Maximilians-Universität München
K Paech - Excellence Cluster Universe
K Dolag - Ludwig-Maximilians-Universität München
J Weller - Ludwig-Maximilians-Universität München
C Sánchez - University of Pennsylvania
E S Rykoff - SLAC National Accelerator Laboratory
B Jain - University of Pennsylvania
T M C Abbott - Cerro Tololo Inter-American Observatory
S Allam - Fermi National Accelerator Laboratory
S Avila - University of Portsmouth
R A Bernstein - Carnegie Observatories
E Bertin - CNRS, UMR 7095, Institut d’Astrophysique de Paris, F-75014 Paris, France, Institut d’Astrophysique de Paris, Sorbonne Universités, UPMC Univ Paris 06, UMR 7095, F-75014 Paris, France
D Brooks - University College London
D L Burke - SLAC National Accelerator Laboratory
A Carnero Rosell - Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas
M Carrasco Kind - University of Illinois Urbana-Champaign
J Carretero - Institut de Física d’Altes Energies (IFAE), The Barcelona Institute of Science and Technology, Campus UAB, E-08193 Bellaterra (Barcelona), Spain
C E Cunha - Stanford University
L N da Costa - Laboratório Interinstitucional de e-Astronomia
C B D’Andrea - University of Pennsylvania
J De Vicente - Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas
D L DePoy - George P. and Cynthia Woods Mitchell Institute for Fundamental Physics and Astronomy, and Department of Physics and Astronomy, Texas A&M University, College Station, TX 77843, USA
S Desai - Indian Institute of Technology Hyderabad
H T Diehl - Fermi National Accelerator Laboratory
P Doel - University College London
A E Evrard - University of Michigan
B Flaugher - Fermi National Accelerator Laboratory
P Fosalba - Institut d'Estudis Espacials de Catalunya
J Frieman - Fermi National Accelerator Laboratory
J García-Bellido - Instituto de Fisica Teorica UAM/CSIC, Universidad Autonoma de Madrid, E-28049 Madrid, Spain
D W Gerdes - University of Michigan
T Giannantonio - University of Cambridge
D Gruen - Kavli Institute for Particle Astrophysics and Cosmology
J Gschwend - Laboratório Interinstitucional de e-Astronomia
G Gutierrez - Fermi National Accelerator Laboratory
W G Hartley - ETH Zurich
D L Hollowood - Santa Cruz Institute for Particle Physics, Santa Cruz, CA 95064, USA
K Honscheid - The Ohio State University
B Hoyle - Max Planck Institute for Extraterrestrial Physics
D J James - Center for Astrophysics Harvard & Smithsonian
T Jeltema - Santa Cruz Institute for Particle Physics, Santa Cruz, CA 95064, USA
K Kuehn - Australian Astronomical Observatory
N Kuropatkin - Fermi National Accelerator Laboratory
M Lima - Laboratório Interinstitucional de e-Astronomia
M March - University of Pennsylvania
J L Marshall - Mitchell Institute
P Melchior - Princeton University
F Menanteau - University of Illinois Urbana-Champaign
R Miquel - Institució Catalana de Recerca i Estudis Avançats
A A Plazas - Princeton University
A K Romer - University of Sussex
E Sanchez - Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas
V Scarpine - Fermi National Accelerator Laboratory
R Schindler - SLAC National Accelerator Laboratory
M Schubnell - University of Michigan
I Sevilla-Noarbe - Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas
M Smith - University of Southampton
M Soares-Santos - Brandeis University, Martin A. Fisher School of Physics
F Sobreira - Universidade Estadual de Campinas (UNICAMP)
E Suchyta - Oak Ridge National Laboratory
G Tarle - University of Michigan
A R Walker - Cerro Tololo Inter-American Observatory
W Wester - Fermi National Accelerator Laboratory
DES Collaboration
Publication Details: Monthly notices of the Royal Astronomical Society, Vol.487(2), pp.2836-2852
Number of pages: 17
Identifiers: 9924552844301921
Academic Unit: Martin A. Fisher School of Physics
Language: English
Resource Type: Journal article

On the relative bias of void tracers in the Dark Energy Survey

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