中文
相关论文

相关论文: Hydrodynamical simulations of the Sunyaev-Zel'dovi…

200 篇论文

We study the redshift evolution of the X-ray and Sunyaev-Zel'dovich (SZ) scaling relations for galaxy groups and clusters in the FABLE suite of cosmological hydrodynamical simulations. Using an expanded sample of $27$ high-resolution…

宇宙学与河外天体物理 · 物理学 2019-09-04 Nicholas A. Henden , Ewald Puchwein , Debora Sijacki

We use high-resolution hydrodynamic re-simulations to investigate the properties of the thermal Sunyaev-Zel'dovich (SZ) effect from galaxy clusters. We compare results obtained using different physical models for the intracluster medium…

天体物理学 · 物理学 2009-06-23 A. Bonaldi , G. Tormen , K. Dolag , L. Moscardini

We present predicted Sunyaev-Zeldovich (SZ) properties of known X-ray clusters of galaxies for which gas temperature measurements are available. The reference sample was compiled from the BAX database for X-ray clusters. The…

宇宙学与河外天体物理 · 物理学 2015-05-14 Luis Ferramacho , Alain Blanchard

We investigate the redshift dependence of X-ray cluster scaling relations drawn from three hydrodynamic simulations of the LCDM cosmology: a Radiative model that incorporates radiative cooling of the gas, a Preheating model that…

天体物理学 · 物理学 2009-09-29 Orrarujee Muanwong , Scott T. Kay , Peter A. Thomas

[Abridged] We present an analysis of the scaling relations between X-ray properties and Sunyaev-Zel'dovich (SZ) parameters for a sample of 24 X-ray luminous galaxy clusters observed with Chandra and with measured SZ effect. These objects…

天体物理学 · 物理学 2009-06-23 A. Morandi , S. Ettori , L. Moscardini

We present Sunyaev-Zel'dovich Effect (SZE) scaling relations for 38 massive galaxy clusters at redshifts 0.14<z0.89, observed with both the Cchandra X-ray Observatory and the centimeter-wave SZE imaging system at the BIMA and OVRO…

We build a simple, {\it top-down} model for the gas density and temperature profiles for galaxy clusters. The gas is assumed to be in hydrostatic equilibrium along with a component of non-thermal pressure taken from simulations and the gas…

宇宙学与河外天体物理 · 物理学 2015-05-18 Anya Chaudhuri , Subhabrata Majumdar

Galaxy cluster surveys based on the Sunyaev-Zeldovich effect (SZE) mapping are expected from ongoing experiments. Such surveys are anticipated to provide a significant amount of information relevant to cosmology from the number counts…

宇宙学与河外天体物理 · 物理学 2010-11-30 Pierre Delsart , Domingos Barbosa , Alain Blanchard

We report the scaling relations derived by fitting the X-ray parameters determined from analyzing the XMM-Newton observations of 120 galaxy clusters in the Planck Early Sunyaev-Zel'dovich sample spanning the redshift range of…

The Sunyaev-Zeldovich (SZ) effect has long been recognized as a powerful cosmological probe. Using the BAHAMAS and MACSIS simulations to obtain $>10,000$ simulated galaxy groups and clusters, we compute three temperature measures and…

宇宙学与河外天体物理 · 物理学 2020-03-03 Elizabeth Lee , Jens Chluba , Scott T. Kay , David J. Barnes

We propose a new method to model cluster scaling relations in modified gravity. Using a suite of non-radiative hydrodynamical simulations, we show that the scaling relations of cumulative gas quantities, such as the Sunyaev Zel'dovich…

宇宙学与河外天体物理 · 物理学 2016-06-15 Jian-hua He , Baojiu Li

We present new measurements of the Sunyaev-Zel'dovich (SZ) effect from clusters of galaxies using the Sunyaev-Zel'dovich Infrared Experiment (SuZIE II). We combine these new measurements with previous cluster observations with the SuZIE…

天体物理学 · 物理学 2009-11-10 B. A. Benson , P. A. R. Ade , J. J. Bock , K. M. Ganga , C. N. Henson , K. L. Thompson , S. E. Church

We analyse cosmological hydrodynamical simulations of galaxy clusters to study the X-ray scaling relations between total masses and observable quantities such as X-ray luminosity, gas mass, X-ray temperature, and $Y_{X}$. Three sets of…

X-ray and microwave cluster scaling relations are immensely valuable for cosmological analysis. However, their power is limited by astrophysical systematics that bias mass estimates and introduce additional scatter. Turbulence injected into…

宇宙学与河外天体物理 · 物理学 2020-07-02 Sheridan B. Green , Han Aung , Daisuke Nagai , Frank C. van den Bosch

Clusters are potentially powerful tools for cosmology provided their observed properties such as the Sunyaev-Zel'dovich (SZ) or X-ray signals can be translated into physical quantities like mass and temperature. Scaling relations are the…

天体物理学 · 物理学 2010-11-02 N. Aghanim , A. C. da Silva , N. J. Nunes

Observable thermodynamical properties of the intracluster medium (ICM) reflect the complex interplay between AGN feedback and the gravitational collapse of haloes. Using the large volume TNG300 simulation of the IllustrisTNG project we…

The Sunyaev-Zel'dovich effect (SZE) observable-mass (Y-M) scaling relation is a promising technique for obtaining mass estimates for large samples of galaxy clusters and holds a key to studying the nature of dark matter and dark energy.…

宇宙学与河外天体物理 · 物理学 2015-06-30 Liang Yu , Kaylea Nelson , Daisuke Nagai

We use the suite of simulations presented in Poole et al (2006) to examine global X-ray and Sunyaev-Zel'dovich (SZ) observables for systems of merging relaxed X-ray clusters. In all of the scaling relations generated from the properties we…

We have exploited the large-volume Millennium Gas cosmological N-body hydrodynamics simulations to study the SZ cluster population at low and high redshift, for three models with varying gas physics. We confirm previous results using…

宇宙学与河外天体物理 · 物理学 2015-06-03 Scott T. Kay , Michael W. Peel , C. J. Short , Peter A. Thomas , Owain E. Young , Richard A. Battye , Andrew R. Liddle , Frazer R. Pearce

We present results on the thermal and kinetic Sunyaev-Zel'dovich (SZ) effects from a sequence of high resolution hydrodynamic simulations of structure formation, including cooling, feedback and metal injection. These simulations represent a…

天体物理学 · 物理学 2008-11-26 Martin White , Lars Hernquist , Volker Springel
‹ 上一页 1 2 3 10 下一页 ›