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相关论文: Cosmology with the S-Z Effect

200 篇论文

The S-Z effect and Faraday rotation from halos are examined over a wide mass range, an including gas condensation and magnetic field evolution. Contributions to the CMB angular power spectrum are evaluated for galaxy clusters, galaxy groups…

天体物理学 · 物理学 2009-04-17 Hiroyuki Tashiro , Joseph Silk , Mathieu Langer , Naoshi Sugiyama

Stacking cosmic microwave background (CMB) maps around known galaxy clusters and groups provides a powerful probe of the distribution of hot gas in these systems via the Sunyaev-Zel'dovich (SZ) effect. A stacking analysis allows one to…

宇宙学与河外天体物理 · 物理学 2017-01-18 Vinu Vikram , Adam Lidz , Bhuvnesh Jain

This Letter explores influences of intracluster magnetic fields ($\gsim 1\mu$G) submerged in the hot electron gas on classic Sunyaev-Zel'dovich effect (SZE) and thermal bremsstrahlung in X-ray emissions. As the Larmor frequency is much…

天体物理学 · 物理学 2009-11-10 Jian Hu , Yu-Qing Lou

Upcoming multi-wavelength astronomical surveys will soon discover all massive galaxy clusters and provide unprecedented constraints on cosmology and cluster astrophysics. In this paper, we investigate the constraining power of the…

宇宙学与河外天体物理 · 物理学 2020-01-08 Masato Shirasaki , Erwin T. Lau , Daisuke Nagai

Observations of the Cosmic Microwave Background (CMB) are discussed, with particular emphasis on current ground-based experiments and on future satellite, balloon and interferometer experiments. Observational techniques and the effects of…

天体物理学 · 物理学 2009-10-31 A. N. Lasenby , A. W. Jones , Y. Dabrowski

We propose a new analysis of small scale CMB data by introducing the cosmological dependency of the foreground signals, focusing first on the thermal Sunyaev-Zel'dovich (tSZ) power spectrum, derived from the halo model. We analyse the…

宇宙学与河外天体物理 · 物理学 2022-03-22 Marian Douspis , Laura Salvati , Adélie Gorce , Nabila Aghanim

In the standard hot cosmological model, the black-body temperature of the Cosmic Microwave Background (CMB), $T_{\rm CMB}$, increases linearly with redshift. Across the line of sight CMB photons interact with the hot ($\sim10^{7-8}$ K) and…

宇宙学与河外天体物理 · 物理学 2015-06-17 G. Hurier , N. Aghanim , M. Douspis , E. Pointecouteau

Sensitive surveys of the Cosmic Microwave Background will detect thousands of galaxy clusters via the Sunyaev-Zel'dovich (SZ) effect. Two SZ observables, the central or maximum and integrated Comptonization parameters y_max and Y, relate in…

天体物理学 · 物理学 2009-11-13 Daniel R. Wik , Craig L. Sarazin , Paul M. Ricker , Scott W. Randall

We discuss the nature of the possible high-l excess in the Cosmic Microwave Background (CMB) anisotropy power spectrum observed by the Cosmic Background Imager (CBI). We probe the angular structure of the excess in the CBI deep fields and…

I review the present observational status of the SZ effect due to the Compton scattering of the 3K background on the hot electrons of clusters of galaxies. I raise the relevant issues from theoretical and X-ray aspects of the question that…

天体物理学 · 物理学 2007-05-23 F. -Xavier Desert

In this review we present a comprehensive discussion of peculiar velocity field measured recently on very large scales with a novel method using X-ray galaxy clusters as tracers. The measurement is based on the kinematic component of the…

宇宙学与河外天体物理 · 物理学 2012-02-06 A. Kashlinsky , F. Atrio-Barandela , H. Ebeling

We measure the kinematic Sunyaev-Zel'dovich (kSZ) effect, imprinted by maxBCG clusters, on the Planck SMICA map of the Cosmic Microwave Background (CMB). Our measurement, for the first time, directly accounts for uncertainties in the…

宇宙学与河外天体物理 · 物理学 2020-12-07 Nhat-Minh Nguyen , Jens Jasche , Guilhem Lavaux , Fabian Schmidt

The Sunyaev-Zeldovich (SZ) effect was first predicted nearly five decades ago, but has only recently become a mature tool for performing high resolution studies of the warm and hot ionized gas in and between galaxies, groups, and clusters.…

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

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

In recent years, significant progress has been made in building new galaxy clusters samples, at low and high redshifts, from wide-area surveys, particularly exploiting the Sunyaev--Zel'dovich (SZ) effect. A large effort is underway to…

The fluctuations in the Cosmic Microwave Background (CMB) intensity due to the Sunyaev-Zeldovich (SZ) effect are the sum of a thermal and a kinetic contribution. Separating the two components to measure the peculiar velocity of galaxy…

天体物理学 · 物理学 2009-11-10 A. Diaferio , S. Borgani , L. Moscardini , G. Murante , K. Dolag , V. Springel , G. Tormen , L. Tornatore , P. Tozzi

We present Ho results from Cosmic Background Imager (CBI) observations of the Sunyaev-Zel'dovich Effect (SZE) in 7 galaxy clusters, A85, A399, A401, A478, A754, A1651, and A2597. These observations are part of a program to study a complete,…

天体物理学 · 物理学 2009-11-10 P. S. Udomprasert , B. S. Mason , A. C. S. Readhead , T. J. Pearson

We present a determination of the Hubble constant from measurements of the Sunyaev-Zeldovich Effect (SZE) in an orientation-unbiased sample of 7 z < 0.1 galaxy clusters. With improved X-ray models and a more accurate 32-GHz calibration, we…

天体物理学 · 物理学 2007-05-23 Brian S. Mason , Steven T. Myers , A. C. S. Readhead

The small-scale cosmic microwave background (CMB) is dominated by anisotropies from the kinematic Sunyaev-Zeldovich (kSZ) effect, and upcoming experiments will measure it very precisely, but the optical depth degeneracy limits the…

宇宙学与河外天体物理 · 物理学 2019-12-04 Mathew S. Madhavacheril , Nicholas Battaglia , Kendrick M. Smith , Jonathan L. Sievers