---
_id: '17770'
abstract:
- lang: eng
  text: "We show that the abundance and redshift distribution (\U0001D451⁢\U0001D441/\U0001D451⁢\U0001D467)
    of galaxy clusters in future high-yield cluster surveys, combined with the spatial
    power spectrum [\U0001D443\U0001D450⁡(\U0001D458)] of the same clusters, can place
    significant constraints on the evolution of the dark energy equation of state,
    \U0001D464=\U0001D464⁡(\U0001D44E). We evaluate the expected errors on \U0001D464\U0001D44E=−\U0001D451⁢\U0001D464/\U0001D451⁢\U0001D44E
    and other cosmological parameters using a Fisher matrix approach, and simultaneously
    including cluster structure evolution parameters in our analysis. We study three
    different types of forthcoming surveys that will identify clusters based on their
    x-ray emission (such as DUO, the Dark Universe Observatory), their Sunyaev-Zel'dovich
    (SZ) decrement (such as SPT, the South Pole Telescope), or their weak-lensing
    shear (such as LSST, the Large Synoptic Survey Telescope). We find that combining
    the cluster abundance and power spectrum significantly enhances constraints from
    either method alone. We show that the weak-lensing survey can deliver a constraint
    as tight as \U0001D6E5⁢\U0001D464\U0001D44E∼0.1 on the evolution of the dark energy
    equation of state, and that the x-ray and SZ surveys each yield \U0001D6E5⁢\U0001D464\U0001D44E∼0.4
    separately, or \U0001D6E5⁢\U0001D464\U0001D44E∼0.2 when these two surveys are
    combined. For the x-ray and SZ surveys, constraints on dark energy parameters
    are improved by a factor of 2 by combining the cluster data with cosmic microwave
    background anisotropy measurements by Planck, but degrade by a factor of 2 if
    the survey is required to solve simultaneously for cosmological and cluster structure
    evolution parameters. The constraint on \U0001D464\U0001D44E from the weak-lensing
    survey is improved by ∼25% with the addition of Planck data."
article_number: '123008'
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Sheng
  full_name: Wang, Sheng
  last_name: Wang
- first_name: Justin
  full_name: Khoury, Justin
  last_name: Khoury
- first_name: Zoltán
  full_name: Haiman, Zoltán
  id: 7c006e8c-cc0d-11ee-8322-cb904ef76f36
  last_name: Haiman
- first_name: Morgan
  full_name: May, Morgan
  last_name: May
citation:
  ama: Wang S, Khoury J, Haiman Z, May M. Constraining the evolution of dark energy
    with a combination of galaxy cluster observables. <i>Physical Review D</i>. 2004;70(12).
    doi:<a href="https://doi.org/10.1103/physrevd.70.123008">10.1103/physrevd.70.123008</a>
  apa: Wang, S., Khoury, J., Haiman, Z., &#38; May, M. (2004). Constraining the evolution
    of dark energy with a combination of galaxy cluster observables. <i>Physical Review
    D</i>. American Physical Society. <a href="https://doi.org/10.1103/physrevd.70.123008">https://doi.org/10.1103/physrevd.70.123008</a>
  chicago: Wang, Sheng, Justin Khoury, Zoltán Haiman, and Morgan May. “Constraining
    the Evolution of Dark Energy with a Combination of Galaxy Cluster Observables.”
    <i>Physical Review D</i>. American Physical Society, 2004. <a href="https://doi.org/10.1103/physrevd.70.123008">https://doi.org/10.1103/physrevd.70.123008</a>.
  ieee: S. Wang, J. Khoury, Z. Haiman, and M. May, “Constraining the evolution of
    dark energy with a combination of galaxy cluster observables,” <i>Physical Review
    D</i>, vol. 70, no. 12. American Physical Society, 2004.
  ista: Wang S, Khoury J, Haiman Z, May M. 2004. Constraining the evolution of dark
    energy with a combination of galaxy cluster observables. Physical Review D. 70(12),
    123008.
  mla: Wang, Sheng, et al. “Constraining the Evolution of Dark Energy with a Combination
    of Galaxy Cluster Observables.” <i>Physical Review D</i>, vol. 70, no. 12, 123008,
    American Physical Society, 2004, doi:<a href="https://doi.org/10.1103/physrevd.70.123008">10.1103/physrevd.70.123008</a>.
  short: S. Wang, J. Khoury, Z. Haiman, M. May, Physical Review D 70 (2004).
date_created: 2024-09-06T10:00:53Z
date_published: 2004-12-17T00:00:00Z
date_updated: 2024-09-30T09:50:28Z
day: '17'
doi: 10.1103/physrevd.70.123008
extern: '1'
external_id:
  arxiv:
  - '0406331'
fulldoi: https://doi.org/10.1103/physrevd.70.123008
intvolume: '        70'
issue: '12'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: ' https://doi.org/10.48550/arXiv.astro-ph/0406331'
month: '12'
oa: 1
oa_version: Preprint
publication: Physical Review D
publication_identifier:
  issn:
  - 1550-7998
  - 1550-2368
publication_status: published
publisher: American Physical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: Constraining the evolution of dark energy with a combination of galaxy cluster
  observables
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 70
year: '2004'
...