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相关论文: Cluster mislocation in kinematic Sunyaev-Zel'dovic…

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Using $\sim$140 deg$^2$ Subaru Hyper Suprime-Cam (HSC) survey data, we stack the weak lensing (WL) signal around five Planck clusters found within the footprint. This yields a 15$\sigma$ detection of the mean Planck cluster mass density…

We present the results of the ground- and space-based optical and near-infrared (NIR) follow-up of 224 galaxy cluster candidates detected with the Sunyaev-Zel'dovich (SZ) effect in the 720 deg^2 of the South Pole Telescope (SPT) survey…

This paper presents detailed analysis of large-scale peculiar motions derived from a sample of ~ 700 X-ray clusters and cosmic microwave background (CMB) data obtained with WMAP. We use the kinematic Sunyaev-Zeldovich (KSZ) effect combining…

天体物理学 · 物理学 2011-02-11 A. Kashlinsky , F. Atrio-Barandela , D. Kocevski , H. Ebeling

We present a method based on matched multifrequency filters for extracting cluster catalogs from Sunyaev-Zel'dovich (SZ) surveys. We evaluate its performance in terms of completeness, contamination rate and photometric recovery for three…

天体物理学 · 物理学 2009-11-11 J. -B. Melin , J. G. Bartlett , J. Delabrouille

We perform an anisotropic clustering analysis of 1,133,326 galaxies from the Sloan Digital Sky Survey (SDSS-III) Baryon Oscillation Spectroscopic Survey (BOSS) Data Release (DR) 12 covering the redshift range $0.15<z<0.69$. The geometrical…

宇宙学与河外天体物理 · 物理学 2018-04-05 Xiao-Dong Li , Cristiano G. Sabiu , Changbom Park , Yuting Wang , Gong-bo Zhao , Hyunbae Park , Arman Shafieloo , Juhan Kim , Sungwook E. Hong

The Sunyaev-Zel'dovich effect is a powerful tool for cosmology that can be used to measure the radial peculiar velocities of galaxy clusters, and thus to test, and constrain, theories of structure formation and evolution. This requires, in…

天体物理学 · 物理学 2009-11-06 N. Aghanim , K. M. Górski , J. -L. Puget

General relativity predicts that the rotational momentum flux of matter twists the spacetime via a vector gravitomagnetic (frame-dragging) field, which remains undetected in cosmology. This vector field induces an additional gravitational…

宇宙学与河外天体物理 · 物理学 2022-01-26 Cristian Barrera-Hinojosa , Baojiu Li , Yan-Chuan Cai

With the advent of current and future high-resolution CMB experiments, the kinematic Sunyaev-Zel'dovich (kSZ) effect has become a unique observational probe of the distribution of baryons and velocities in the Universe. In this work, we…

宇宙学与河外天体物理 · 物理学 2025-11-14 Raagini Patki , Nicholas Battaglia , J. Colin Hill

We present a method for measuring the masses of galaxy clusters using the imprint of their gravitational lensing signal on the cosmic microwave background (CMB) temperature anisotropies. The method first reconstructs the projected…

宇宙学与河外天体物理 · 物理学 2015-05-27 Jean-Baptiste Melin , James G. Bartlett

We investigate whether the large scale structure environment of galaxy clusters imprints a selection bias on Sunyaev Zel'dovich (SZ) catalogs. Such a selection effect might be caused by line of sight (LoS) structures that add to the SZ…

宇宙学与河外天体物理 · 物理学 2015-08-06 Ralf Kosyra , Daniel Gruen , Stella Seitz , Annalisa Mana , Eduardo Rozo , Eli Rykoff , Ariel Sanchez , Ralf Bender

The Sunyaev-Zel'dovich (SZ) effect has long been identified as one of the most important secondary effects of the Cosmic Microwave Background (CMB). On the one hand, it is a potentially very powerful cosmological probe providing us with…

宇宙学与河外天体物理 · 物理学 2015-05-13 N. Taburet , M. Douspis , N. Aghanim

Recent results of ground-based telescopes, giving high-quality measurements of the CMB temperature power spectrum on small scales motivate the need for an accurate model of foregrounds, which dominate the primary signal at these multipoles.…

宇宙学与河外天体物理 · 物理学 2022-07-06 Adélie Gorce , Marian Douspis , Laura Salvati

Galaxy clusters are the most massive objects in the Universe and comprise a high-temperature intracluster medium of about 10^7 K, believed to offer a main foreground effect for cosmic microwave background (CMB) data in the form of the…

宇宙学与河外天体物理 · 物理学 2017-03-15 Weike Xiao , Chen Chen , Bin Zhang , Yongfeng Wu , Mi Dai

We report the detection of the kinetic Sunyaev-Zel'dovich (kSZ) effect in galaxy clusters with a 4.9 sigma significance using the latest 217 GHz Planck map from data release 4. For the detection, we stacked the Planck map at the positions…

宇宙学与河外天体物理 · 物理学 2022-06-15 Hideki Tanimura , Nabila Aghanim , Victor Bonjean , Saleem Zaroubi

For galaxy clustering to provide robust constraints on cosmological parameters and galaxy formation models, it is essential to make reliable estimates of the errors on clustering measurements. We present a new technique, based on a spatial…

宇宙学与河外天体物理 · 物理学 2015-05-28 Peder Norberg , Enrique Gaztanaga , Carlton M. Baugh , Darren J. Croton

The CMB Planck satellite (ESA) will provide a catalogue of nearly 30000 galaxy clusters (Sunyaev-Zel'dovich effect) between redshift 0 and approx. 2-3 (depending on the cosmological model). This hughe catalogue of clusters will allow…

天体物理学 · 物理学 2007-05-23 J. M. Diego , E. Martinez-Gonzalez , J. L. Sanz , N. Benitez , J. Silk

Several statistics have been proposed for measuring the kSZ effect by combining the small-scale CMB with galaxy surveys. We review five such statistics, and show that they are all mathematically equivalent to the optimal bispectrum…

宇宙学与河外天体物理 · 物理学 2018-11-01 Kendrick M. Smith , Mathew S. Madhavacheril , Moritz Münchmeyer , Simone Ferraro , Utkarsh Giri , Matthew C. Johnson

In galaxy clusters the thermal Sunyaev-Zel'dovich (SZ) effect from the hot intracluster medium (ICM) provides a direct, self-contained measure of the pressure integrated over crossing lines of sight, that is intrinsically independent of…

宇宙学与河外天体物理 · 物理学 2015-06-23 A. Cavaliere , A. Lapi

The mean pressure profile of the cluster population is a key element in cosmological analyses based on surveys of galaxy clusters observed through the Sunyaev-Zel'dovich (SZ) effect. A variation of both the shape and the amplitude of this…

宇宙学与河外天体物理 · 物理学 2020-02-12 F. Ruppin , F. Mayet , J. F. Macías-Pérez , L. Perotto