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相关论文: Breaking degeneracies with the Sunyaev-Zeldovich f…

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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

The thermal Sunyaev-Zel'dovich (tSZ) effect arises from inverse Compton scattering of low energy photons onto thermal electrons, proportional to the integrated electron pressure, and is usually observed from galaxy clusters. However, we can…

We discuss the possibility to constrain the relation between redshift and temperature of the cosmic microwave background (CMB) using multifrequency Sunyaev-Zeldovich (SZ) observations. We have simulated a catalog of clusters of galaxies…

天体物理学 · 物理学 2009-11-11 Cathy Horellou , Martin Nord , Daniel Johansson , Anna Levy

Compton scattering of the cosmic microwave background (CMB) from hot ionized gas produces a range of effects, and the leading order effects are the kinetic and thermal Sunyaev Zel'dovich (kSZ and tSZ) effects. In the near future, CMB…

宇宙学与河外天体物理 · 物理学 2020-09-16 William R. Coulton , Atsuhisa Ota , Alexander van Engelen

We consider the polarized Sunyaev-Zel'dovich (pSZ) effect for a tomographic probe of cosmic birefringence, including all relevant terms of the pSZ effect in the cosmic microwave background (CMB) observables, some of which were ignored in…

宇宙学与河外天体物理 · 物理学 2024-12-30 Toshiya Namikawa , Ippei Obata

We re-examine a genuine power of weak lensing bispectrum tomography for constraining cosmological parameters, when combined with the power spectrum tomography, based on the Fisher information matrix formalism. To account for the full…

宇宙学与河外天体物理 · 物理学 2013-06-21 Issha Kayo , Masahiro Takada

The cosmic background due to the Sunyaev-Zeldovich (SZ) effect is expected to be the largest signal at mm and cm wavelengths at a resolution of a few arcminutes. We investigate some simple statistics of SZ maps and their scaling with the…

天体物理学 · 物理学 2009-11-13 Gilbert Holder , Ian G. McCarthy , Arif Babul

In recent years, observations of the Sunyaev-Zeldovich (SZ) effect have had significant cosmological implications and have begun to serve as a powerful and independent probe of the warm and hot gas that pervades the Universe. As a few…

Recent first detections of the cross-correlation of the thermal Sunyaev-Zel'dovich (tSZ) signal in Planck cosmic microwave background (CMB) temperature maps with gravitational lensing maps inferred from the Planck CMB data and the CFHTLenS…

宇宙学与河外天体物理 · 物理学 2015-10-28 N. Battaglia , J. C. Hill , N. Murray

Scaling relations among galaxy cluster observables, which will become available in large future samples of galaxy clusters, could be used to constrain not only cluster structure, but also cosmology. We study the utility of this approach,…

宇宙学与河外天体物理 · 物理学 2015-05-13 Cien Shang , Zoltan Haiman , Licia Verde

Forthcoming measurements of the Sunyaev-Zeldovich (SZ) effect in galaxy clusters will dramatically improve our understanding of the main intra-cluster medium (ICM) properties and how they depend on the particular thermal and dynamical state…

宇宙学与河外天体物理 · 物理学 2025-03-14 Óscar Monllor-Berbegal , David Vallés-Pérez , Susana Planelles , Vicent Quilis

We calculate the constraints on dark energy and cosmic modifications to gravity achievable with upcoming cosmic microwave background (CMB) surveys sensitive to the Sunyaev-Zeldovich (SZ) effects. The analysis focuses on using the mean…

宇宙学与河外天体物理 · 物理学 2015-08-06 Eva-Maria Mueller , Francesco de Bernardis , Rachel Bean , Michael Niemack

We analyze measurements of the thermal Sunyaev-Zeldovich (tSZ) effect arising in the circumgalactic medium (CGM) of $L^*$ galaxies, reported by Bregman et al. 2022 and Das et al. 2023. In our analysis we use the Faerman et al. 2017 and…

星系天体物理 · 物理学 2024-08-14 Yossi Oren , Amiel Sternberg , Christopher F. McKee , Yakov Faerman , Shy Genel

In this work we study the performance of linear multifilters for the estimation of the amplitudes of the thermal and kinematic Sunyaev-Zel'dovich effects. We show that when both effects are present, estimation of these effects with standard…

天体物理学 · 物理学 2009-11-10 D. Herranz , J. L. Sanz , R. B. Barreiro , M. Lopez-Caniego

Galaxy clusters observed through the thermal Sunyaev-Zeldovich (tSZ) effect are a recent cosmological probe. The precision on the cosmological constraints is affected mainly by the current knowledge of cluster physics, which enters the…

宇宙学与河外天体物理 · 物理学 2019-06-12 Laura Salvati , Marian Douspis , Anna Ritz , Nabila Aghanim , Arif Babul

We present a forecast of the pairwise kinematic Sunyaev-Zel'dovich (kSZ) measurement that will be achievable with the future CMB-S4 experiment. CMB-S4 is the next stage for ground-based cosmic microwave background experiments, with a…

宇宙学与河外天体物理 · 物理学 2024-09-30 E. Schiappucci , S. Raghunathan , C. To , F. Bianchini , C. L. Reichardt , N. Battaglia , B. Hadzhiyska , S. Kim , J. B. Melin , C. Sifón , E. M. Vavagiakis

Study of the primary anisotropies of the Cosmic Microwave Background (CMB) can be used to determine the cosmological parameters to a very high precision. The power spectrum of the secondary CMB anisotropies due to the thermal…

天体物理学 · 物理学 2016-08-30 Subhabrata Majumdar

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