Hydrodynamic Simulation of Non-thermal Pressure Profiles of Galaxy Clusters - INSPIRE

DataBETA

Hydrodynamic Simulation of Non-thermal Pressure Profiles of Galaxy Clusters

Apr 17, 2014

8 pages

Published in:

Astrophys.J. 792 (2014) 1, 25

Published: Aug 11, 2014

e-Print:

1404.4636 [astro-ph.CO]

DOI:

10.1088/0004-637X/792/1/25

View in:

ADS Abstract Service

reference search166 citations

Citations per year

Abstract: (IOP)

Cosmological constraints from X-ray and microwave observations of galaxy clusters are subjected to systematic uncertainties. Non-thermal pressure support due to internal gas motions in galaxy clusters is one of the major sources of astrophysical uncertainties. Using a mass-limited sample of galaxy clusters from a high-resolution hydrodynamical cosmological simulation, we characterize the non-thermal pressure fraction profile and study its dependence on redshift, mass, and mass accretion rate. We find that the non-thermal pressure fraction profile is universal across redshift when galaxy cluster radii are defined with respect to the mean matter density of the universe instead of the commonly used critical density. We also find that the non-thermal pressure is predominantly radial, and the gas velocity anisotropy profile exhibits strong universality when galaxy cluster radii are defined with respect to the mean matter density of the universe. However, we find that the non-thermal pressure fraction is strongly dependent on the mass accretion rate of the galaxy cluster. We provide fitting formulae for the universal non-thermal pressure fraction and velocity anisotropy profiles of gas in galaxy clusters, which should be useful in modeling astrophysical uncertainties pertinent to using galaxy clusters as cosmological probes.

Note:

9 pages, 6 figures; Accepted by ApJ

methods: numerical
galaxies: clusters: general
cosmology: theory

References(48)

Figures(11)

Cosmological Parameters from Observations of Galaxy Clusters

Steven W. Allen
(
- KIPAC, Menlo Park and
- SLAC and
- Stanford U., Phys. Dept.
)
,
August E. Evrard
(
- Michigan U., MCTP and
- Michigan U.
)
,
Adam B. Mantz
(
- NASA, Goddard
)

- Ann.Rev.Astron.Astrophys. 49 (2011) 409-470
•
e-Print:
- 1103.4829
•
DOI:
- 10.1146/annurev-astro-081710-102514

Weighing the Giants – III. Methods and measurements of accurate galaxy cluster weak-lensing masses

Douglas E. Applegate
(
- KIPAC, Menlo Park and
- Stanford U., Phys. Dept. and
- SLAC and
- Argelander Inst. Astron.
)
,
Anja von der Linden
(
)
,
Patrick L. Kelly
(
- KIPAC, Menlo Park and
- Stanford U., Phys. Dept. and
- SLAC
)
,
Mark T. Allen
(
- KIPAC, Menlo Park and
- Stanford U., Phys. Dept.
)
,
Steven W. Allen
(
- KIPAC, Menlo Park and
- Stanford U., Phys. Dept. and
- SLAC
)

et al.

- Mon.Not.Roy.Astron.Soc. 439 (2014) 1, 48-72
•
e-Print:
- 1208.0605
•
DOI:
- 10.1093/mnras/stt2129

On the Cluster Physics of Sunyaev-Zel'dovich Surveys I: The Influence of Feedback, Non-thermal Pressure and Cluster Shapes on Y-M Scaling Relations

- Astrophys.J. 758 (2012) 74
•
e-Print:
- 1109.3709
•
DOI:
- 10.1088/0004-637X/758/2/74

Simulations of the Sunyaev-Zel'dovich Power Spectrum with AGN Feedback

- Astrophys.J. 725 (2010) 91-99
•
e-Print:
- 1003.4256
•
DOI:
- 10.1088/0004-637X/725/1/91

Dark Matter Halo Profiles of Massive Clusters: Theory vs. Observations

Suman Bhattacharya
(
- Argonne and
- Chicago U., KICP
)
,
Salman Habib
(
- Argonne and
- Chicago U., KICP
)
,
Katrin Heitmann
(
- Argonne and
- Chicago U., KICP
)
,
Alexey Vikhlinin
(
- Harvard-Smithsonian Ctr. Astrophys. and
- Moscow, Space Res. Inst.
)

- Astrophys.J. 766 (2013) 32
•
e-Print:
- 1112.5479
•
DOI:
- 10.1088/0004-637X/766/1/32

Bispectrum of the Sunyaev-Zel'dovich Effect

- Astrophys.J. 760 (2012) 5
•
e-Print:
- 1203.6368
•
DOI:
- 10.1088/0004-637X/760/1/5

G.L. Bryan
,
M.L. Norman

- Astrophys.J. 1 (1998) 80

Dependence of the outer density profiles of halos on their mass accretion rate

- Astrophys.J. 789 (2014) 1
•
e-Print:
- 1401.1216
•
DOI:
- 10.1088/0004-637X/789/1/1

The pseudo-evolution of halo mass

- Astrophys.J. 766 (2013) 25
•
e-Print:
- 1207.0816
•
DOI:
- 10.1088/0004-637X/766/1/25

Search for cosmic-ray induced gamma-ray emission in Galaxy Clusters

Fermi-LAT

Collaboration

•

M. Ackermann
(
- DESY, Zeuthen
)

et al.

- Astrophys.J. 787 (2014) 18
•
e-Print:
- 1308.5654
•
DOI:
- 10.1088/0004-637X/787/1/18

Mass estimates of X-ray clusters

August E. Evrard
(
- Michigan U. and
- Santa Barbara, KITP
)
,
Christopher A. Metzler
(
- Fermilab
)
,
Julio F. Navarro
(
- Arizona U., Astron. Dept. - Steward Observ. and
- Santa Barbara, KITP
)

- Astrophys.J. 469 (1996) 494
•
e-Print:
- astro-ph/9510058
•
DOI:
- 10.1086/177798

Cosmological constraints from moments of the thermal Sunyaev-Zel’dovich effect

- Phys.Rev.D 87 (2013) 2, 023527
•
e-Print:
- 1205.5794
•
DOI:
- 10.1103/PhysRevD.87.023527

Sample variance considerations for cluster surveys

Wayne Hu
(
- Chicago U., KICP
)
,
Andrey V. Kravtsov
(
- Chicago U., KICP
)

- Astrophys.J. 584 (2003) 702-715
•
e-Print:
- astro-ph/0203169
•
DOI:
- 10.1086/345846

Turbulence in clusters of galaxies and x-ray line profiles

Nail A. Inogamov
(
- Landau Inst. and
- Garching, Max Planck Inst.
)
,
R.A. Sunyaev
(
- Garching, Max Planck Inst. and
- Moscow, Space Res. Inst.
)

- Astron.Lett. 29 (2003) 791
•
e-Print:
- astro-ph/0310737
•
DOI:
- 10.1134/1.1631412

Resolving the structure of cold dark matter halos

Anatoly Klypin
(
- New Mexico State U.
)
,
Andrey V. Kravtsov
(
- Ohio State U.
)
,
James Bullock
(
- Ohio State U.
)
,
Joel Primack

- Astrophys.J. 554 (2001) 903-915
•
e-Print:
- astro-ph/0006343
•
DOI:
- 10.1086/321400

The Sunyaev-Zel'dovich angular power spectrum as a probe of cosmological parameters

Eiichiro Komatsu
(
- Princeton U.
)
,
Uros Seljak
(
- Princeton U.
)

- Mon.Not.Roy.Astron.Soc. 336 (2002) 1256
•
e-Print:
- astro-ph/0205468
•
DOI:
- 10.1046/j.1365-8711.2002.05889.x

PhD thesis, New Mexico State Univ

A.V. Kravtsov

Constrained simulations of the real universe. 2. Observational signatures of intergalactic gas in the local supercluster region

- Astrophys.J. 571 (2002) 563
•
e-Print:
- astro-ph/0109077
•
DOI:
- 10.1086/340046

On the influence of non-thermal pressure on the mass determination of galaxy clusters

- Astron.Astrophys. 510 (2010) A76
•
e-Print:
- 0911.0647
•
DOI:
- 10.1051/0004-6361/200911855

Residual Gas Motions in the Intracluster Medium and Bias in Hydrostatic Measurements of Mass Profiles of Clusters

- Astrophys.J. 705 (2009) 1129-1138
•
e-Print:
- 0903.4895
•
DOI:
- 10.1088/0004-637X/705/2/1129

Weighing Galaxy Clusters with Gas. I. On the Methods of Computing Hydrostatic Mass Bias

- Astrophys.J. 777 (2013) 151
•
e-Print:
- 1306.3993
•
DOI:
- 10.1088/0004-637X/777/2/151

Joint Analysis of Cluster Observations: II. Chandra/XMM-Newton X-ray and Weak Lensing Scaling Relations for a Sample of 50 Rich Clusters of Galaxies

et al.

- Astrophys.J. 767 (2013) 2, 116
•
e-Print:
- 1210.3689
•
DOI:
- 10.1088/0004-637X/767/2/116

Effect of internal flows on Sunyaev-Zeldovich measurements of cluster peculiar velocities

Daisuke Nagai
(
- Chicago U., KICP and
- Chicago U., Astron. Astrophys. Ctr.
)
,
Andrey V. Kravtsov
(
- Chicago U., KICP and
- Chicago U., Astron. Astrophys. Ctr.
)
,
Arthur Kosowsky
(
- Chicago U., KICP and
- Rutgers U., Piscataway
)

- Astrophys.J. 587 (2003) 524-532
•
e-Print:
- astro-ph/0208308
•
DOI:
- 10.1086/368281

Effects of Galaxy Formation on Thermodynamics of the Intracluster Medium

Daisuke Nagai
(
- Caltech
)
,
Andrey V. Kravtsov
(
)
,
Alexey Vikhlinin
(
- Harvard-Smithsonian Ctr. Astrophys. and
- Moscow, Space Res. Inst.
)

- Astrophys.J. 668 (2007) 1-14
•
e-Print:
- astro-ph/0703661
•
DOI:
- 10.1086/521328

Testing X-ray Measurements of Galaxy Clusters with Cosmological Simulations

Daisuke Nagai
(
- Caltech
)
,
Alexey Vikhlinin
(
- Harvard-Smithsonian Ctr. Astrophys. and
- Moscow, Space Res. Inst.
)
,
Andrey V. Kravtsov
(
)

- Astrophys.J. 655 (2007) 98-108
•
e-Print:
- astro-ph/0609247
•
DOI:
- 10.1086/509868

1-25 of 48
1
2
25 / page