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相关论文: Interpreting Sunyaev-Zel'dovich observations with …

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The Sunyaev-Zel'dovich effect (SZE) provides a unique way to map the large-scale structure of the universe as traced by massive clusters of galaxies. As a spectral distortion of the cosmic microwave background, the SZE is insensitive to the…

天体物理学 · 物理学 2011-05-05 John E. Carlstrom , Gilbert P. Holder , Erik D. Reese

We report on results of interferometric imaging of the Sunyaev-Zel'dovich Effect (SZE) with the OVRO and BIMA mm-arrays. Using low-noise cm-wave receivers on the arrays, we have obtained high quality images for 27 distant galaxy clusters.…

天体物理学 · 物理学 2009-10-31 J. E. Carlstrom , M. K. Joy , L. Grego , G. P. Holder , W. L. Holzapfel , J. J. Mohr , S. Patel , E. D. Reese

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 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…

We describe polarization of the Sunyaev-Zel'dovich (SZ) effect associated with electron pressure anisotropy likely present in the intracluster medium (ICM). The ICM is an astrophysical example of a weakly collisional plasma where the Larmor…

高能天体物理现象 · 物理学 2017-12-27 I. Khabibullin , S. Komarov , E. Churazov , A. Schekochihin

We describe Sunyaev-Zel'dovich (SZ) effect measurements and analysis of the intracluster medium (ICM) pressure profiles of a set of 45 massive galaxy clusters imaged using Bolocam at the Caltech Submillimeter Observatory. We have used…

We present measurements of the X-ray observables of the intra-cluster medium (ICM), including luminosity $L_X$, ICM mass $M_{ICM}$, emission-weighted mean temperature $T_X$, and integrated pressure $Y_X$, that are derived from XMM-Newton…

Measurement of the gas velocity distribution in galaxy clusters provides insight into the physics of mergers, through which large scale structures form in the Universe. Velocity estimates within the intracluster medium (ICM) can be obtained…

The kinetic Sunyaev-Zel'dovich (kSZ) effect results from Thomson scattering by coherent flows in the reionized intergalactic medium. We present new results based on ray-tracing a 10 Gpc scale simulation at 2-3 Mpc scale resolution to create…

宇宙学与河外天体物理 · 物理学 2016-06-24 Marcelo A. Alvarez

We have detected the Sunyaev-Zel'dovich (SZ) increment at 850 microns in two galaxy clusters (Cl 0016+16 and MS 1054.4-0321) using SCUBA (Sub-millimetre Common User Bolometer Array) on the James Clerk Maxwell Telescope. Fits to the…

We examine how the Sunyaev-Zel'dovich (SZ) effect of clusters can probe $\Omega_{o}$. Using self-consistent models of X-ray clusters in the context of hierarchical models of structure formation, we show that both the mean Compton {\it y}…

天体物理学 · 物理学 2016-08-30 Domingos Barbosa , James G. Bartlett , Alain Blanchard , Jamila Oukbir

A complete census of baryons in the late universe is a long-standing challenge due to the intermediate temperate and rarefied character of the majority of cosmic gas. To gain insight into this problem, we extract measurements of the…

宇宙学与河外天体物理 · 物理学 2021-04-07 Jonas Chaves-Montero , Carlos Hernandez-Monteagudo , Raul E. Angulo , J. D. Emberson

Interferometric observations of the Sunyaev-Zel'dovich Effect (SZE) toward clusters of galaxies provide sensitive cosmological probes. We present results from 1 cm observations (at BIMA and OVRO) of a large, intermediate redshift cluster…

天体物理学 · 物理学 2009-10-31 J. J. Mohr , J. E. Carlstrom , G. P. Holder , W. L. Holzapfel , M. K. Joy , E. M. Leitch , E. D. Reese

We discuss the scaling relation between mass and integrated Compton parameter of a sample of galaxy clusters from the all-sky {\it Planck} Sunyaev-Zel'dovich catalogue. Masses were measured with either weak lensing, caustics techniques, or…

宇宙学与河外天体物理 · 物理学 2015-06-17 Mauro Sereno , Stefano Ettori , Lauro Moscardini

High-precision measurements of the Cosmic Microwave Background (CMB) will soon allow for the unprecedented detection of small-scale secondary anisotropies, such as the kinetic Sunyaev-Zel'dovich (kSZ) effect. Linking the kSZ power spectrum…

The Sunyaev Zel'dovich (SZ) signal is highly non-Gaussian, so the SZ power spectrum (along with the mean $y$ parameter) does not provide a complete description of the SZ effect. Therefore, SZ-based constraints on cosmological parameters and…

天体物理学 · 物理学 2008-11-26 Pengjie Zhang , Ravi K. Sheth

New generation ground and space-based CMB experiments have ushered in discoveries of massive galaxy clusters via the Sunyaev-Zeldovich (SZ) effect, providing a new window for studying cluster astrophysics and cosmology. Many of the newly…

宇宙学与河外天体物理 · 物理学 2015-06-05 Jens Chluba , Daisuke Nagai , Sergey Sazonov , Kaylea Nelson

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

Extracting precise cosmology from weak lensing surveys requires modelling the non-linear matter power spectrum, which is suppressed at small scales due to baryonic feedback processes. However, hydrodynamical galaxy formation simulations…

宇宙学与河外天体物理 · 物理学 2024-04-10 L. Bigwood , A. Amon , A. Schneider , J. Salcido , I. G. McCarthy , C. Preston , D. Sanchez , D. Sijacki , E. Schaan , S. Ferraro , N. Battaglia , A. Chen , S. Dodelson , A. Roodman , A. Pieres , A. Ferte , A. Alarcon , A. Drlica-Wagner , A. Choi , A. Navarro-Alsina , A. Campos , A. J. Ross , A. Carnero Rosell , B. Yin , B. Yanny , C. Sanchez , C. Chang , C. Davis , C. Doux , D. Gruen , E. S. Rykoff , E. M. Huff , E. Sheldon , F. Tarsitano , F. Andrade-Oliveira , G. M. Bernstein , G. Giannini , H. T. Diehl , H. Huang , I. Harrison , I. Sevilla-Noarbe , I. Tutusaus , J. Elvin-Poole , J. McCullough , J. Zuntz , J. Blazek , J. DeRose , J. Cordero , J. Prat , J. Myles , K. Eckert , K. Bechtol , K. Herner , L. F. Secco , M. Gatti , M. Raveri , M. Carrasco Kind , M. R. Becker , M. A. Troxel , M. Jarvis , N. MacCrann , O. Friedrich , O. Alves , P. -F. Leget , R. Chen , R. P. Rollins , R. H. Wechsler , R. A. Gruendl , R. Cawthon , S. Allam , S. L. Bridle , S. Pandey , S. Everett , T. Shin , W. G. Hartley , X. Fang , Y. Zhang , M. Aguena , J. Annis , D. Bacon , E. Bertin , S. Bocquet , D. Brooks , J. Carretero , F. J. Castander , L. N. da Costa , M. E. S. Pereira , J. De Vicente , S. Desai , P. Doel , I. Ferrero , B. Flaugher , J. Frieman , J. Garcia-Bellido , E. Gaztanaga , G. Gutierrez , S. R. Hinton , D. L. Hollowood , K. Honscheid , D. Huterer , D. J. James , K. Kuehn , O. Lahav , S. Lee , J. L. Marshall , J. Mena-Fernandez , R. Miquel , J. Muir , M. Paterno , A. A. Plazas Malagon , A. Porredon , A. K. Romer , S. Samuroff , E. Sanchez , D. Sanchez Cid , M. Smith , M. Soares-Santos , E. Suchyta , M. E. C. Swanson , G. Tarle , C. To , N. Weaverdyck , J. Weller , P. Wiseman , M. Yamamoto