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相关论文: Hydrodynamic Simulations of the Sunyaev-Zel'dovich…

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We present the first calculation of the kinetic Sunyaev-Zel'dovich (kSZ) effect due to the inhomogeneus reionization of the universe based on detailed large-scale radiative transfer simulations of reionization. The resulting sky power…

天体物理学 · 物理学 2011-04-11 Ilian T. Iliev , Ue-Li Pen , J. Richard Bond , Garrelt Mellema , Paul R. Shapiro

Cosmological transverse momentum fields, whose directions are perpendicular to Fourier wave vectors, induce temperature anisotropies in the cosmic microwave background via the kinetic Sunyaev-Zeldovich (kSZ) effect. The transverse momentum…

宇宙学与河外天体物理 · 物理学 2016-02-17 Hyunbae Park , Eiichiro Komatsu , Paul R. Shapiro , Jun Koda , Yi Mao

We study the prospects for extracting detailed statistical properties of the Sunyaev-Zel'dovich (SZ) effect associated with large scale structure using upcoming multifrequency CMB experiments. The greatest obstacle to detecting the…

天体物理学 · 物理学 2009-10-07 Asantha Cooray , Wayne Hu , Max Tegmark

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

The thermal Sunyaev-Zel'dovich (tSZ) effect is the inverse-Compton scattering of cosmic microwave background (CMB) photons off hot, ionized electrons, primarily located in galaxy groups and clusters. Recent years have seen immense…

宇宙学与河外天体物理 · 物理学 2015-10-22 J. Colin Hill

A complete picture of the gas thermodynamics around galaxies is imprinted on the cosmic microwave background (CMB). Indeed, the thermal, kinematic, and relativistic Sunyaev-Zel'dovich effects (tSZ, kSZ, rSZ) measure the gas density,…

宇宙学与河外天体物理 · 物理学 2026-03-05 Sadaf Kadir , Bernardita Ried Guachalla , Sihan Yuan , Emmanuel Schaan , Risa H. Wechsler

At high angular frequencies, beyond the damping tail of the primary power spectrum, the dominant contribution to the power spectrum of cosmic microwave background (CMB) temperature fluctuations is the thermal Sunyaev-Zel'dovich (tSZ)…

宇宙学与河外天体物理 · 物理学 2013-05-06 Dipak Munshi , Shahab Joudaki , Joseph Smidt , Peter Coles , Scott T. Kay

We present a comparison of the physical properties of the ionized gas in the circumgalactic (CGM) and intergalactic (IGM) media at $z\sim0$ between observations and four cosmological hydrodynamical simulations: Illustris, TNG300 of the…

The thermal Sunyaev-Zeldovich (SZ) effect serves as a direct potential probe of the energetic outflows from quasars that are responsible for heating the intergalactic medium. In this work, we use the GIZMO meshless finite mass hydrodynamic…

宇宙学与河外天体物理 · 物理学 2023-06-26 Avinanda Chakraborty , Suchetana Chatterjee , Mark Lacy , Soumya Roy , Samrat Roy , Rudrani Kar Chowdhury

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

We examine the thermal energy contents of the intergalactic medium (IGM) over three orders of magnitude in both mass density and gas temperature using thermal Sunyaev-Zel'dovich effect (tSZE). The analysis is based on {\it Planck} tSZE map…

星系天体物理 · 物理学 2018-08-15 Seunghwan Lim , Houjun Mo , Huiyuan Wang , Xiaohu Yang

We use high-resolution hydrodynamical simulations of large-scale structure formation to study the imprints of the local superclusters onto the full-sky Sunyaev-Zel'dovich (SZ) signals. Following (Mathis et al. 2002), the initial conditions…

天体物理学 · 物理学 2009-11-11 K. Dolag , F. K. Hansen , M. Roncarelli , L. Moscardini

We calculate the angular power spectrum of the Cosmic Microwave Background (CMB) temperature fluctuations induced by the kinetic Sunyaev-Zel'dovich (kSZ) effect from the epoch of reionization (EOR). We use detailed N-body+radiative transfer…

宇宙学与河外天体物理 · 物理学 2015-06-12 Hyunbae Park , Paul R. Shapiro , Eiichiro Komatsu , Ilian T. Iliev , Kyungjin Ahn , Garrelt Mellema

(Abridged) The amplitude of the thermal Sunyaev Zel'dovich effect (tSZ) power spectrum is extremely sensitive to the abundance of galaxy clusters and therefore to fundamental cosmological parameters that control their growth, such as…

宇宙学与河外天体物理 · 物理学 2015-06-18 Ian G. McCarthy , Amandine M. C. Le Brun , Joop Schaye , Gilbert P. Holder

The angular power spectrum of the SZ effect, C_l, is a powerful probe of cosmology. It is easier to detect than individual clusters in the field, is insensitive to observational selection effects and does not require a calibration between…

天体物理学 · 物理学 2009-11-07 Eiichiro Komatsu , Uros Seljak

We examine, from first principles, the angular power spectrum between the kinematic Sunyaev-Zel'dovich effect (kSZ) and the reconstructed galaxy momentum - the basis of existing and future "kSZ stacking" analyses. We present a comprehensive…

宇宙学与河外天体物理 · 物理学 2025-11-18 Amy Wayland , David Alonso , Adrien La Posta

Measurements of secondary cosmic microwave background (CMB) anisotropies, such as the Sunyaev-Zel'dovich (SZ) effect, will enable new tests of neutrino and dark sector properties. The kinetic SZ (kSZ) effect is produced by cosmological…

宇宙学与河外天体物理 · 物理学 2023-03-07 Gerrit S. Farren , Daniel Grin , Andrew H. Jaffe , Renée Hložek , David J. E. Marsh

The advent of high-resolution imaging of galaxy clusters using the Sunyaev-Zel'dovich Effect (SZE) provides a unique probe of the astrophysics of the intracluster medium (ICM) out to high redshifts. To investigate the effects of cluster…

宇宙学与河外天体物理 · 物理学 2015-06-15 John J. Ruan , Thomas R. Quinn , Arif Babul

The kinetic Sunyaev Zel'dovich (kSZ) effect, cosmic microwave background (CMB) anisotropies induced by scattering from free electrons in bulk motion, is a primary target of future CMB experiments. Measurements of the kSZ effect have the…

宇宙学与河外天体物理 · 物理学 2018-09-12 Juan I. Cayuso , Matthew C. Johnson , James B. Mertens