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 language | English (US) |
|---|---|
| Pages (from-to) | 2367-2379 |
| Number of pages | 13 |
| Journal | Monthly Notices of the Royal Astronomical Society |
| Volume | 485 |
| Issue number | 2 |
| DOIs | |
| State | Published - Feb 15 2019 |
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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 journal › Article
}
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 -