Dark Energy Survey Year 1 results: measurement of the galaxy angular power spectrum-Reference-Cited by-同舟云学术

Dark Energy Survey Year 1 results: measurement of the galaxy angular power spectrum

Published:2019-06-03 Issue:3 Volume:487 Page:3870-3883
ISSN:0035-8711
Container-title:Monthly Notices of the Royal Astronomical Society
language:en
Short-container-title:

Author:

Camacho H¹²^ORCID,Kokron N¹²,Andrade-Oliveira F²³,Rosenfeld R²⁴,Lima M¹²,Lacasa F²⁵,Sobreira F²⁶,da Costa L N²⁷,Avila S⁸^ORCID,Chan K C⁹¹⁰^ORCID,Crocce M⁹¹⁰^ORCID,Ross A J¹¹^ORCID,Troja A²⁴,García-Bellido J¹²,Abbott T M C¹³,Abdalla F B¹⁴¹⁵,Allam S¹⁶,Annis J¹⁶,Bernstein R A¹⁷,Bertin E¹⁸¹⁹,Bridle S L²⁰,Brooks D¹⁴,Buckley-Geer E¹⁶,Burke D L²¹²²,Carnero Rosell A²⁷,Carrasco Kind M²³²⁴,Carretero J²⁵,Castander F J⁹¹⁰,Cawthon R²⁶,Cunha C E²¹,D’Andrea C B²⁷,De Vicente J²⁸,Desai S²⁹,Diehl H T¹⁶,Doel P¹⁴,Estrada J¹⁶,Evrard A E³⁰³¹^ORCID,Flaugher B¹⁶,Fosalba P⁹¹⁰,Frieman J¹⁶²⁶,Gerdes D W³⁰³¹,Giannantonio T³²³³³⁴,Gruendl R A²³²⁴,Gschwend J²⁷,Gutierrez G¹⁶,Hollowood D L³⁵,Honscheid K¹¹³⁶,Hoyle B³⁴³⁷^ORCID,James D J³⁸,Johnson M W G²⁴,Johnson M D²⁴,Kent S¹⁶²⁶,Kirk D¹⁴,Krause E³⁹⁴⁰,Kuehn K⁴¹,Kuropatkin N¹⁶,Lin H¹⁶,Marshall J L⁴²,Miquel R²⁵⁴³,Percival W J⁴⁴⁴⁵,Plazas A A⁴⁰^ORCID,Romer A K⁴⁶,Roodman A²¹²²,Sanchez E²⁸,Schubnell M³¹,Sevilla-Noarbe I²⁸,Smith M⁴⁷,Smith R C¹³,Soares-Santos M⁴⁸^ORCID,Suchyta E⁴⁹^ORCID,Swanson M E C²⁴,Tarle G³¹,Thomas D⁸^ORCID,Tucker D L¹⁶,Walker A R¹³,Zuntz J⁵⁰^ORCID,

Affiliation:

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

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

3. Instituto de Física Teórica, Universidade Estadual Paulista, São Paulo, Brazil

4. ICTP South American Institute for Fundamental Research Instituto de Física Teórica, Universidade Estadual Paulista, São Paulo, Brazil

5. Département de Physique Théorique and Center for Astroparticle Physics, Université de Genève, 24 quai Ernest Ansermet, CH-1211 Geneva, Switzerland

6. Instituto de Física Gleb Wataghin, Universidade Estadual de Campinas, 13083-859 Campinas, SP, Brazil

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

8. Institute of Cosmology & Gravitation, University of Portsmouth, Portsmouth PO1 3FX, UK

9. Institut d’Estudis Espacials de Catalunya (IEEC), E-08193 Barcelona, Spain

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

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

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

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

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

15. Department of Physics and Electronics, Rhodes University, PO Box 94, Grahamstown 6140, South Africa

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

17. Observatories of the Carnegie Institution of Washington, 813 Santa Barbara St, Pasadena, CA 91101, USA

18. CNRS, UMR 7095, Institut d’Astrophysique de Paris, F-75014 Paris, France

19. Sorbonne Universités, UPMC Univ Paris 06, UMR 7095, Institut d’Astrophysique de Paris, F-75014 Paris, France

20. Jodrell Bank Center for Astrophysics, School of Physics and Astronomy, University of Manchester, Oxford Road, Manchester M13 9PL, UK

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

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

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

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

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

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

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

28. Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT), Madrid, Spain

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

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

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

32. Institute of Astronomy, University of Cambridge, Madingley Road, Cambridge CB3 0HA, UK

33. Kavli Institute for Cosmology, University of Cambridge, Madingley Road, Cambridge CB3 0HA, UK

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

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

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

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

38. Harvard-Smithsonian Center for Astrophysics, Cambridge, MA 02138, USA

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

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

41. Australian Astronomical Observatory, North Ryde, NSW 2113, Australia

42. 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

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

44. Department of Physics and Astronomy, University of Waterloo, 200 University Ave W, Waterloo, ON N2L 3G1, Canada

45. Perimeter Institute for Theoretical Physics, 31 Caroline St. North, Waterloo, ON N2L 2Y5, Canada

46. Department of Physics and Astronomy, Pevensey Building, University of Sussex, Brighton BN1 9QH, UK

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

48. Physics Department, Brandeis University, 415 South Street, Waltham, MA 02453, USA

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

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

Abstract

ABSTRACT We use data from the first-year observations of the DES collaboration to measure the galaxy angular power spectrum (APS), and search for its BAO feature. We test our methodology in a sample of 1800 DES Y1-like mock catalogues. We use the pseudo-Cℓ method to estimate the APS and the mock catalogues to estimate its covariance matrix. We use templates to model the measured spectra and estimate template parameters firstly from the Cℓ’s of the mocks using two different methods, a maximum likelihood estimator and a Markov Chain Monte Carlo, finding consistent results with a good reduced χ2. Robustness tests are performed to estimate the impact of different choices of settings used in our analysis. Finally, we apply our method to a galaxy sample constructed from DES Y1 data specifically for LSS studies. This catalogue comprises galaxies within an effective area of 1318 deg2 and 0.6 < z < 1.0. We find that the DES Y1 data favour a model with BAO at the $2.6 \sigma$ C.L. However, the goodness of fit is somewhat poor, with χ2/(d.o.f.) = 1.49. We identify a possible cause showing that using a theoretical covariance matrix obtained from Cℓ’s that are better adjusted to data results in an improved value of χ2/(dof) = 1.36 which is similar to the value obtained with the real-space analysis. Our results correspond to a distance measurement of DA(zeff = 0.81)/rd = 10.65 ± 0.49, consistent with the main DES BAO findings. This is a companion paper to the main DES BAO article showing the details of the harmonic space analysis.

Funder

Conselho Nacional de Desenvolvimento Científico e Tecnológico

Fundação de Amparo à Pesquisa do Estado de São Paulo

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

Fundação Carlos Chagas Filho de Amparo à Pesquisa do Estado do Rio de Janeiro

Ministério da Ciência, Tecnologia e Inovação