The large-scale environment from cosmological simulations II: The redshift evolution and distributions of baryons

Weiguang Cui, Alexander Knebe, Noam I. Libeskind, Susana Planelles, Xiaohu Yang, Wei Cui, Romeel Davé, Xi Kang, Robert Mostoghiu, Lister Staveley-Smith, Huiyuan Wang, Peng Wang, Gustavo Yepes

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Following Cui et al. (2018; hereafter Paper I) on the classification of large-scale environments (LSE) at z = 0, we push our analysis to higher redshifts and study the evolution of LSE and the baryon distributions in them. Our aim is to investigate how baryons affect the LSE as a function of redshift. In agreement with Paper I, the baryon models have negligible effect on the LSE overall investigated redshifts. We further validate the conclusion obtained in Paper I that the gas web is an unbiased tracer of total matter - even better at high redshifts. By separating the gas mainly by temperature, we find that about 40 per cent of gas is in the so-called warm-hot intergalactic medium (WHIM). This fraction of gas mass in theWHIM decreases with redshift, especially from z=1 (29 per cent) to z=2.1 (10 per cent). By separating the whole WHIM gas mass into the four large-scale environments (i.e. voids, sheets, filaments, and knots), we find that about half of the WHIM gas is located in filaments. Although the total gas mass inWHIM decreases with redshift, the WHIM mass fractions in the different LSE seem unchanged.

Original languageEnglish (US)
Pages (from-to)2367-2379
Number of pages13
JournalMonthly Notices of the Royal Astronomical Society
Volume485
Issue number2
DOIs
StatePublished - Feb 15 2019

Fingerprint

baryons
intergalactic media
gases
gas
simulation
filaments
mass media
distribution
void
tracers
voids
tracer
temperature

Keywords

  • Cosmology: miscellaneous
  • Large-scale structure of Universe

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

Cite this

The large-scale environment from cosmological simulations II : The redshift evolution and distributions of baryons. / Cui, Weiguang; Knebe, Alexander; Libeskind, Noam I.; Planelles, Susana; Yang, Xiaohu; Cui, Wei; Davé, Romeel; Kang, Xi; Mostoghiu, Robert; Staveley-Smith, Lister; Wang, Huiyuan; Wang, Peng; Yepes, Gustavo.

In: Monthly Notices of the Royal Astronomical Society, Vol. 485, No. 2, 15.02.2019, p. 2367-2379.

Research output: Contribution to journalArticle

Cui, W, Knebe, A, Libeskind, NI, Planelles, S, Yang, X, Cui, W, Davé, R, Kang, X, Mostoghiu, R, Staveley-Smith, L, Wang, H, Wang, P & Yepes, G 2019, 'The large-scale environment from cosmological simulations II: The redshift evolution and distributions of baryons', Monthly Notices of the Royal Astronomical Society, vol. 485, no. 2, pp. 2367-2379. https://doi.org/10.1093/mnras/stz565
Cui, Weiguang ; Knebe, Alexander ; Libeskind, Noam I. ; Planelles, Susana ; Yang, Xiaohu ; Cui, Wei ; Davé, Romeel ; Kang, Xi ; Mostoghiu, Robert ; Staveley-Smith, Lister ; Wang, Huiyuan ; Wang, Peng ; Yepes, Gustavo. / The large-scale environment from cosmological simulations II : The redshift evolution and distributions of baryons. In: Monthly Notices of the Royal Astronomical Society. 2019 ; Vol. 485, No. 2. pp. 2367-2379.
@article{02fdc3bfc9df489a827db8f495a53d86,
title = "The large-scale environment from cosmological simulations II: The redshift evolution and distributions of baryons",
abstract = "Following Cui et al. (2018; hereafter Paper I) on the classification of large-scale environments (LSE) at z = 0, we push our analysis to higher redshifts and study the evolution of LSE and the baryon distributions in them. Our aim is to investigate how baryons affect the LSE as a function of redshift. In agreement with Paper I, the baryon models have negligible effect on the LSE overall investigated redshifts. We further validate the conclusion obtained in Paper I that the gas web is an unbiased tracer of total matter - even better at high redshifts. By separating the gas mainly by temperature, we find that about 40 per cent of gas is in the so-called warm-hot intergalactic medium (WHIM). This fraction of gas mass in theWHIM decreases with redshift, especially from z=1 (29 per cent) to z=2.1 (10 per cent). By separating the whole WHIM gas mass into the four large-scale environments (i.e. voids, sheets, filaments, and knots), we find that about half of the WHIM gas is located in filaments. Although the total gas mass inWHIM decreases with redshift, the WHIM mass fractions in the different LSE seem unchanged.",
keywords = "Cosmology: miscellaneous, Large-scale structure of Universe",
author = "Weiguang Cui and Alexander Knebe and Libeskind, {Noam I.} and Susana Planelles and Xiaohu Yang and Wei Cui and Romeel Dav{\'e} and Xi Kang and Robert Mostoghiu and Lister Staveley-Smith and Huiyuan Wang and Peng Wang and Gustavo Yepes",
year = "2019",
month = "2",
day = "15",
doi = "10.1093/mnras/stz565",
language = "English (US)",
volume = "485",
pages = "2367--2379",
journal = "Monthly Notices of the Royal Astronomical Society",
issn = "0035-8711",
publisher = "Oxford University Press",
number = "2",

}

TY - JOUR

T1 - The large-scale environment from cosmological simulations II

T2 - The redshift evolution and distributions of baryons

AU - Cui, Weiguang

AU - Knebe, Alexander

AU - Libeskind, Noam I.

AU - Planelles, Susana

AU - Yang, Xiaohu

AU - Cui, Wei

AU - Davé, Romeel

AU - Kang, Xi

AU - Mostoghiu, Robert

AU - Staveley-Smith, Lister

AU - Wang, Huiyuan

AU - Wang, Peng

AU - Yepes, Gustavo

PY - 2019/2/15

Y1 - 2019/2/15

N2 - Following Cui et al. (2018; hereafter Paper I) on the classification of large-scale environments (LSE) at z = 0, we push our analysis to higher redshifts and study the evolution of LSE and the baryon distributions in them. Our aim is to investigate how baryons affect the LSE as a function of redshift. In agreement with Paper I, the baryon models have negligible effect on the LSE overall investigated redshifts. We further validate the conclusion obtained in Paper I that the gas web is an unbiased tracer of total matter - even better at high redshifts. By separating the gas mainly by temperature, we find that about 40 per cent of gas is in the so-called warm-hot intergalactic medium (WHIM). This fraction of gas mass in theWHIM decreases with redshift, especially from z=1 (29 per cent) to z=2.1 (10 per cent). By separating the whole WHIM gas mass into the four large-scale environments (i.e. voids, sheets, filaments, and knots), we find that about half of the WHIM gas is located in filaments. Although the total gas mass inWHIM decreases with redshift, the WHIM mass fractions in the different LSE seem unchanged.

AB - Following Cui et al. (2018; hereafter Paper I) on the classification of large-scale environments (LSE) at z = 0, we push our analysis to higher redshifts and study the evolution of LSE and the baryon distributions in them. Our aim is to investigate how baryons affect the LSE as a function of redshift. In agreement with Paper I, the baryon models have negligible effect on the LSE overall investigated redshifts. We further validate the conclusion obtained in Paper I that the gas web is an unbiased tracer of total matter - even better at high redshifts. By separating the gas mainly by temperature, we find that about 40 per cent of gas is in the so-called warm-hot intergalactic medium (WHIM). This fraction of gas mass in theWHIM decreases with redshift, especially from z=1 (29 per cent) to z=2.1 (10 per cent). By separating the whole WHIM gas mass into the four large-scale environments (i.e. voids, sheets, filaments, and knots), we find that about half of the WHIM gas is located in filaments. Although the total gas mass inWHIM decreases with redshift, the WHIM mass fractions in the different LSE seem unchanged.

KW - Cosmology: miscellaneous

KW - Large-scale structure of Universe

UR - http://www.scopus.com/inward/record.url?scp=85072291197&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85072291197&partnerID=8YFLogxK

U2 - 10.1093/mnras/stz565

DO - 10.1093/mnras/stz565

M3 - Article

AN - SCOPUS:85072291197

VL - 485

SP - 2367

EP - 2379

JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

SN - 0035-8711

IS - 2

ER -