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

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We use moving mesh hydrodynamical simulations to make maps of Sunyaev-Zeldovich effect. We present these maps for several cosmological models and explore their lowest moments. We find that the first moment, the mean Compton $y$ parameter,…

天体物理学 · 物理学 2009-10-31 Uros Seljak , Juan Burwell , Ue-Li Pen

Using the results of a cosmological hydrodynamical simulation of the concordance LambdaCDM model, we study the global properties of the Sunyaev-Zel'dovich (SZ) effects, both considering the thermal (tSZ) and the kinetic (kSZ) component. The…

天体物理学 · 物理学 2008-11-26 M. Roncarelli , L. Moscardini , S. Borgani , K. Dolag

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

We use hydrodynamical N-body simulations to study the kinetic Sunyaev-Zel'dovich effect. We construct sets of maps, one square degree in size, in three different cosmological models. We confirm earlier calculations that on the scales…

天体物理学 · 物理学 2009-10-31 Antonio C da Silva , Domingos Barbosa , Andrew R Liddle , Peter A Thomas

We calculate the one-point probability density distribution functions (PDF) and the power spectra of the thermal and kinetic Sunyaev-Zeldovich (tSZ and kSZ) effects and the mean Compton Y parameter using the Magneticum Pathfinder…

宇宙学与河外天体物理 · 物理学 2016-08-24 Klaus Dolag , Eiichiro Komatsu , Rashid Sunyaev

The impacts of Compton scattering of hot cosmic gas with the cosmic microwave background radiation (Sunyaev-Zel'dovich effect, SZ) are consistently quantified in Gaussian and non-Gaussian scenarios, by means of 3D numerical, N-body,…

宇宙学与河外天体物理 · 物理学 2015-06-17 Francesco Pace , Umberto Maio

We use the cosmo-OWLS suite of cosmological hydrodynamical simulations, which includes different galactic feedback models, to predict the cross-correlation signal between weak gravitational lensing and the thermal Sunyaev-Zeldovich (tSZ)…

The thermal Sunyaev-Zeldovich effect contains information about the thermal history of the universe, observable in maps of the Compton $y$ parameter; however, it does not contain information about the redshift of the sources. Recent papers…

宇宙学与河外天体物理 · 物理学 2021-11-03 Sam Young , Eiichiro Komatsu , Klaus Dolag

We construct the mean thermal Sunyaev-Zel'dovich (tSZ) Comptonization y profile around Luminous Red Galaxies (LRGs) in the redshift range 0.16 < z < 0.47 from the Sloan Digital Sky Survey (SDSS) Data Release 7 (DR7) using the Planck y map.…

We have performed a sequence of high resolution hydrodynamic simulations of structure formation in a LCDM model to study the thermal and kinetic Sunyaev-Zel'dovich (SZ) effects. Including only adiabatic gas physics, we demonstrate that our…

天体物理学 · 物理学 2009-10-31 Volker Springel , Martin White , Lars Hernquist

The determination of the morphology of galaxy clusters has important repercussion on their cosmological and astrophysical studies. In this paper we address the morphological characterisation of synthetic maps of the Sunyaev--Zel'dovich (SZ)…

宇宙学与河外天体物理 · 物理学 2018-03-28 Giammarco Cialone , Marco De Petris , Federico Sembolini , Gustavo Yepes , Anna Silvia Baldi , Elena Rasia

Observations from the first flight of the Medium Scale Anisotropy Measurement (MSAM1-92) are analyzed to search for the Sunyaev-Zel'dovich (SZ) effect towards the Coma cluster. This balloon-borne instrument uses a $28\arcmin$ FWHM beam and…

We use the billion-particle Hubble Volume simulations to make statistical predictions for the distribution of galaxy clusters that will be observed by the Planck Surveyor satellite through their effect on the cosmic microwave background --…

天体物理学 · 物理学 2009-11-06 Scott T Kay , Andrew R Liddle , Peter A Thomas

The two dimensional structure of hot gas in galaxy clusters contains information about the hydrodynamical state of the cluster, which can be used to understand the origin of scatter in the thermodynamical properties of the gas, and to…

宇宙学与河外天体物理 · 物理学 2015-05-14 A. Finoguenov , A. J. R. Sanderson , J. J. Mohr , J. J. Bialek , A. Evrard

We constructed a new all-sky Compton parameter map (y-map) of the thermal Sunyaev-Zel'dovich (tSZ) effect from the 100 to 857 GHz frequency channel maps delivered within the Planck data release 4. The improvements in terms of noise and…

宇宙学与河外天体物理 · 物理学 2021-10-19 Hideki Tanimura , Marian Douspis , Nabila Aghanim , Laura Salvati

(Abridged) The hot gas in the IGM produces anisotropies in the Cosmic Microwave Background (CMB) through the thermal Sunyaev-Zel'dovich (SZ) effect. The SZ effect is a powerful probe of large-scale structure in the universe and must be…

天体物理学 · 物理学 2009-12-30 A. Refregier , E. Komatsu , D. N. Spergel , U. -L. Pen

In order to assess the potential of future microwave anisotropy space experiments for detecting clusters by their Sunyaev-Zeldovich (SZ) thermal effect, we have simulated maps of the large scale distribution of their Compton parameter $y$…

天体物理学 · 物理学 2007-05-23 N. Aghanim , A. De Luca , F. R. Bouchet , G. Gispert , J. L. Puget

(Abridged) The precision modeling of the thermal Sunyaev Zeldovich (SZ) effect and future high accuracy measurements will provide a powerful way to constrain the thermal history of the universe. In this paper, we combine high resolution…

天体物理学 · 物理学 2009-11-10 Pengjie Zhang , Ue-Li Pen , Hy Trac

We have performed a series of simulations of clusters of galaxies on the basis of the smoothed particle hydrodynamics technique in a spatially-flat cold dark matter universe with $\Omega=0.3$, $\lambda=0.7$, and H_0=70 km/s/Mpc as one of…

天体物理学 · 物理学 2015-06-24 Kohji Yoshikawa , Makoto Itoh , Yasushi Suto
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