Dark Energy Survey Year 1 results: the lensing imprint of cosmic voids on the cosmic microwave background

Author:

Vielzeuf P123,Kovács A145,Demirbozan U1,Fosalba P67,Baxter E8,Hamaus N9,Huterer D10,Miquel R111,Nadathur S12,Pollina G9,Sánchez C8,Whiteway L13,Abbott T M C14,Allam S15,Annis J15,Avila S16,Brooks D13,Burke D L1718,Carnero Rosell A1920,Carrasco Kind M2122,Carretero J1,Cawthon R23,Costanzi M2425,da Costa L N2026,De Vicente J19,Desai S27,Diehl H T15,Doel P13,Eifler T F2829,Everett S30,Flaugher B15,Frieman J1531,García-Bellido J16,Gaztanaga E67,Gerdes D W1032,Gruen D171833,Gruendl R A2122,Gschwend J2026,Gutierrez G15,Hartley W G1334,Hollowood D L30,Honscheid K3536,James D J37,Kuehn K3839,Kuropatkin N15,Lahav O13,Lima M2040,Maia M A G2026,March M8,Marshall J L41,Melchior P42,Menanteau F2122,Palmese A1531,Paz-Chinchón F2122,Plazas A A42,Sanchez E19,Scarpine V15,Serrano S67,Sevilla-Noarbe I19,Smith M43,Suchyta E44,Tarle G10,Thomas D12,Weller J94546,Zuntz J47,

Affiliation:

1. Institut de Física d’Altes Energies (IFAE), The Barcelona Institute of Science and Technology, Campus UAB, E-08193 Bellaterra (Barcelona), Spain

2. SISSA, International School for Advanced Studies, Via Bonomea 265, I-34136 Trieste, Italy

3. IFPU, Institute for Fundamental Physics of the Universe, Via Beirut 2, I-34151 Trieste, Italy

4. Instituto de Astrofísica de Canarias (IAC), Calle Via Lactea, E-38200 La Laguna, Tenerife, Spain

5. Departamento de Astrofísica, Universidad de La Laguna (ULL), E-38206 La Laguna, Tenerife, Spain

6. Institut d’Estudis Espacials de Catalunya (IEEC), E-08034 Barcelona, Spain

7. Institute of Space Sciences (ICE, CSIC), Campus UAB, Carrer de Can Magrans, s/n, E-08193 Barcelona, Spain

8. Department of Physics and Astronomy, University of Pennsylvania, Philadelphia, PA 19104, USA

9. Universitäts-Sternwarte, Fakultät für Physik, Ludwig-Maximilians Universität München, Scheinerstr. 1, D-81679 München, Germany

10. Department of Physics, University of Michigan, Ann Arbor, MI 48109, USA

11. Institució Catalana de Recerca i Estudis Avançats, E-08010 Barcelona, Spain

12. Institute of Cosmology and Gravitation, University of Portsmouth, Portsmouth PO1 3FX, UK

13. Department of Physics & Astronomy, University College London, Gower Street, London WC1E 6BT, UK

14. Cerro Tololo Inter-American Observatory, National Optical Astronomy Observatory, Casilla 603, La Serena, Chile

15. Fermi National Accelerator Laboratory, PO Box 500, Batavia, IL 60510, USA

16. Instituto de Fisica Teorica UAM/CSIC, Universidad Autonoma de Madrid, E-28049 Madrid, Spain

17. Kavli Institute for Particle Astrophysics & Cosmology, PO Box 2450, Stanford University, Stanford, CA 94305, USA

18. SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA

19. Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT), E-28040 Madrid, Spain

20. Laboratório Interinstitucional de e-Astronomia - LIneA, Rua Gal. José Cristino 77, Rio de Janeiro, RJ - 20921-400, Brazil

21. Department of Astronomy, University of Illinois at Urbana-Champaign, 1002 W. Green Street, Urbana, IL 61801, USA

22. National Center for Supercomputing Applications, 1205 West Clark St., Urbana, IL 61801, USA

23. Physics Department, 2320 Chamberlin Hall, University of Wisconsin-Madison, 1150 University Avenue Madison, WI 53706-1390, USA

24. INAF–Osservatorio Astronomico di Trieste, via G. B. Tiepolo 11, I-34143 Trieste, Italy

25. Institute for Fundamental Physics of the Universe, Via Beirut 2, I-34014 Trieste, Italy

26. Observatório Nacional, Rua Gal. José Cristino 77, Rio de Janeiro, RJ - 20921-400, Brazil

27. Department of Physics, IIT Hyderabad, Kandi, Telangana 502285, India

28. Department of Astronomy/Steward Observatory, University of Arizona, 933 North Cherry Avenue, Tucson, AZ 85721-0065, USA

29. Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Dr., Pasadena, CA 91109, USA

30. Santa Cruz Institute for Particle Physics, Santa Cruz, CA 95064, USA

31. Kavli Institute for Cosmological Physics, University of Chicago, Chicago, IL 60637, USA

32. Department of Astronomy, University of Michigan, Ann Arbor, MI 48109, USA

33. Department of Physics, Stanford University, 382 Via Pueblo Mall, Stanford, CA 94305, USA

34. Department of Physics, ETH Zurich, Wolfgang-Pauli-Strasse 16, CH-8093 Zurich, Switzerland

35. Center for Cosmology and Astro-Particle Physics, The Ohio State University, Columbus, OH 43210, USA

36. Department of Physics, The Ohio State University, Columbus, OH 43210, USA

37. Center for Astrophysics | Harvard & Smithsonian, 60 Garden Street, Cambridge, MA 02138, USA

38. Australian Astronomical Optics, Macquarie University, North Ryde, NSW 2113, Australia

39. Lowell Observatory, 1400 Mars Hill Rd, Flagstaff, AZ 86001, USA

40. Departamento de Física Matemática, Instituto de Física, Universidade de São Paulo, CP 66318, São Paulo, SP 05314-970, Brazil

41. 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

42. Department of Astrophysical Sciences, Princeton University, Peyton Hall, Princeton, NJ 08544, USA

43. School of Physics and Astronomy, University of Southampton, Southampton SO17 1BJ, UK

44. Computer Science and Mathematics Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA

45. Excellence Cluster Origins, Boltzmannstr. 2, D-85748 Garching, Germany

46. Max Planck Institute for Extraterrestrial Physics, Giessenbachstrasse, D-85748 Garching, Germany

47. Institute for Astronomy, University of Edinburgh, Edinburgh EH9 3HJ, UK

Abstract

ABSTRACT Cosmic voids gravitationally lens the cosmic microwave background (CMB) radiation, resulting in a distinct imprint on degree scales. We use the simulated CMB lensing convergence map from the Marenostrum Institut de Ciencias de l’Espai (MICE) N-body simulation to calibrate our detection strategy for a given void definition and galaxy tracer density. We then identify cosmic voids in Dark Energy Survey (DES) Year 1 data and stack the Planck 2015 lensing convergence map on their locations, probing the consistency of simulated and observed void lensing signals. When fixing the shape of the stacked convergence profile to that calibrated from simulations, we find imprints at the 3σ significance level for various analysis choices. The best measurement strategies based on the MICE calibration process yield S/N ≈ 4 for DES Y1, and the best-fitting amplitude recovered from the data is consistent with expectations from MICE (A ≈ 1). Given these results as well as the agreement between them and N-body simulations, we conclude that the previously reported excess integrated Sachs–Wolfe (ISW) signal associated with cosmic voids in DES Y1 has no counterpart in the Planck CMB lensing map.

Funder

U.S. Department of Energy

National Science Foundation

Science and Technology Facilities Council

Higher Education Funding Council for England

University of Illinois at Urbana-Champaign

University of Chicago

Ohio State 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

Ministério da Ciência, Tecnologia e Inovação

Deutsche Forschungsgemeinschaft

Publisher

Oxford University Press (OUP)

Subject

Space and Planetary Science,Astronomy and Astrophysics

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