Detecting the Sunyaev-Zel’dovich Effect
A Galaxy Cluster Survey Using the Sunyaev Zel’dovich Effect
... The APEX project expects 300 bolometers, which is a factor of 10 above that of Bolocam. The mapping speed is directly proportional to number of bolometers, so the APEX mapping speed should be an order of magnitude ...
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Studying galaxy clusters through X-rays and the Sunyaev-Zel’dovich effect : simulations, detection and characterisation
... X-ray sources comprise almost all classes of astronomical objects, from planets and stars out to black holes and galaxy clusters. The ROSAT satellite performed the first X-ray all- sky survey in 1990, detecting ...
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The Impact of Non-Equipartition on Cosmological Parameter Estimation From Sunyaev-Zel\u27Dovich Surveys
... equipartition effect can introduce biases in the integrated SZ effect, and the biases depend on cluster mass and evolve with redshift in the ΛCDM ...non-equipartition effect on precision cosmology ...
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Kinetic Sunyaev-Zel'dovich effect in modified gravity
... 3 Institute Lorentz, Leiden University, P.O. Box 9506, Leiden 2300 RA, Netherlands (Received 4 November 2015; published 7 March 2016) We investigate the impact of modified theories of gravity on the kinetic ...
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Testing Modified Gravity with the Sunyaev Zel'dovich Effect
... take effect because the energy density is large enough during the ...chameleon effect, and of forming cluster itself being a subcluster of a larger sized over/underdensity, which enhances/diminishes the ...
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A search for galaxy clusters using the Sunyaev-Zel'dovich effect
... thermal effect by maximizing the SZ signal to the total estimated noise contribution as a function of band center and ...kinetic effect (which has the same spectrum as primary CMB anisotropies) while ...
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Expectations for an interferometric Sunyaev Zeldovich effect survey for galaxy clusters
... Subject headings: cosmology:theory — galaxies: clusters: general — large-scale structure of universe 1. INTRODUCTION The evolution of the cluster abundance is a sensitive probe of the mass density Ω m (e.g., Viana and ...
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Spectral imaging of X-COP galaxy clusters with the Sunyaev–Zel’dovich effect
... 2 Sapienza Università di Roma, Piazzale Aldo Moro 5, I-00085 Roma, Italy Abstract. The Sunyaev–Zel’dovich effect is the ideal probe for investigating the outskirts of galaxy clusters. To map this signal, we ...
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Mass calibration of the Sunyaev-Zel'dovich effect using APEX-SZ galaxy clusters
... In this context, we focus on a simplified model for the SPT-3G 2500 deg 2 survey. We take a fixed detection threshold of Y SZ,lim = 0.88 × 10 −5 Mpc 2 , chosen to match the predicted SPT-3G number counts (5000 clusters) ...
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Confirmation of NIKA2 investigation of the Sunyaev-Zel’dovich effect by using synthetic clusters of galaxies
... NIKA2 Sunyaev-Zel’dovich Large Program (SZLP) is focused on mapping the thermal SZ signal of a representative sample of selected Planck and ACT clusters spanning the redshift range ...
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High Resolution Measurements of the Sunyaev-Zel'dovich Effect in Galaxy Clusters at 90 GHz
... “train-wreck”, disturbed, and cool core, respectively. With MUSTANG-1.5 we can measure pressure profiles, detect shocks, and characterize substructure in the ICM in each of these complex systems. With 64 detectors a 13 ...
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Merger-induced scatter and bias in the cluster mass–Sunyaev–Zel’dovich effect scaling relation
... Shaw et al. 2008; Yang, Bhattacharya & Ricker 2010; Becker & Kravtsov 2011; Fabjan et al. 2011). In this work, we focus on the effect of merging events on the SZ signal of a galaxy cluster. As clusters form ...
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H_o from Cosmic Background Imager observations of the Sunyaev-Zeldovich effect in nearby clusters
... • The Northern ROSAT All-Sky Galaxy Cluster Survey: NORAS (B¨ohringer et al., 2000) This is a purely X-ray selected survey, covering δ ≥ 0 ◦ and | b | ≥ 20 ◦ . The authors studied a sample of 495 sources which were shown ...
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Statistical properties of thermal Sunyaev–Zel'dovich maps
... thermal Sunyaev–Zel’dovich (tSZ) ...the Sunyaev–Zel’dovich maps, using well-motivated models for dark matter clustering to construct statistical descriptions of the tSZ effect to all orders enabling ...
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Probing the intracluster medium at high angular resolution via radio-interferometric measurements of the Sunyaev-Zeldovich effect
... at detecting the hot intracluster medium via the thermal SZ ...SZ effect from the Spiderweb proto-cluster would represent the first, direct detection of the SZ signal from a proto-cluster complex, providing ...
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Galaxy Clusters Discovered via the Sunyaev-Zel'dovich Effect in the 2500-Square-Degree SPT-SZ Survey
... In this section, we describe our model for the optical and NIR properties of red- sequence galaxies, the process by which we identify excesses of such galaxies at candidate locations, an[r] ...
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Sunyaev Zel’dovich Observations Using Large Format Millimeter Arrays
... SZ effect null and so provides a unique opportunity to measure the transi- tional frequencies where the tSZ effect passes from a decrement to an increment in surface brightness with high spectral res- ...
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NIKA: a mm camera for Sunyaev-Zel’dovich science in clusters of galaxies
... the SZ effect can also be used to measure cluster temperature given a measurement of the electron density using for example X-ray photometric observations. This type of analysis was performed for the first time by ...
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Constraining Cosmological Parameters using Sunyaev-Zel'dovich cluster surveys
... INTRODUCTION Sunyaev and Zel’dovich 关 1,2 兴 共 SZ 兲 first noted that cosmic microwave background 共 CMB 兲 photons would be rescattered as they pass through the hot intergalactic medium in clusters of galaxies due to ...
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The redshift evolution of X-ray and Sunyaev-Zel'dovich scaling relations in the FABLE simulations
... this effect we have repeated our analyses fitting to the median relation in bins of width ...the effect is similar to, or smaller than, switch- ing from the fiducial sample to the sample of haloes with M ...
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