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Related papers: The Non-Thermal Sunyaev-Zel'dovich Effect in Clust…

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Several galaxy clusters host X-ray cavities, often filled with relativistic electrons emitting in the radio band. In the cluster MS 0735.6+7421 the cavities have been detected through the Sunyaev Zel'dovich (SZ) effect, but it has not been…

Cosmology and Nongalactic Astrophysics · Physics 2022-02-09 P. Marchegiani

We study the spectral distortions of the cosmic microwave background radiation induced by the Sunyaev-Zel'dovich (SZ) effect in clusters of galaxies when the target electrons have a modified Maxwell-Boltzmann distribution with a high-energy…

Astrophysics · Physics 2009-10-31 P. Blasi , A. V. Olinto , A. Stebbins

We discuss a new method of finding the cluster temperatures which is independent of distance and therefore very useful for distant clusters. The hot gas of electrons in clusters of galaxies scatters and distorts the cosmic microwave…

Astrophysics · Physics 2009-11-07 Steen H. Hansen , Sergio Pastor , Dmitry V. Semikoz

We present correlation results for the radio halo power in galaxy clusters with the integrated thermal Sunyaev-Zel'dovich (SZ) effect signal, including new results obtained at sub-GHz frequencies. The radio data is compiled from several…

Cosmology and Nongalactic Astrophysics · Physics 2013-05-07 Kaustuv Basu

A recent stacking analysis of Planck HFI data of galaxy clusters (Hurier 2016) allowed to derive the cluster temperatures by using the relativistic corrections to the Sunyaev-Zel'dovich effect (SZE). However, the temperatures of…

Cosmology and Nongalactic Astrophysics · Physics 2017-06-28 P. Marchegiani , S. Colafrancesco

The galaxy cluster MS 0735.6+7421 hosts two large X-ray cavities, filled with radio emission, where a decrease of the Sunyaev-Zel'dovich (SZ) effect has been detected, without establishing if its origin is thermal (from a gas with very high…

Cosmology and Nongalactic Astrophysics · Physics 2021-11-03 P. Marchegiani

The Sunyaev-Zeldovich (SZ) effect gives a measure of the thermal energy and electron pressure in groups and clusters of galaxies. In the near future SZ surveys will map hundreds of systems, shedding light on the pressure distribution in the…

Astrophysics · Physics 2007-12-18 Troels Haugboelle , Jesper Sommer-Larsen , Kristian Pedersen

Energetic electrons in the lobes of radio galaxies make them potential sources for not only radio and X-rays but also Sunyaev-Zeldovich (SZ) distortions in the cosmic microwave background (CMB) radiation. Previous works have discussed the…

High Energy Astrophysical Phenomena · Physics 2022-02-10 Sandeep Kumar Acharya , Subhabrata Majumdar , Biman B. Nath

We investigate how strongly and at what scales the Sunyaev- Zel'dovich effect reflects the shifting balance between the two processes that compete for governing the density and the thermodynamic state of the hot intra-cluster medium…

Astrophysics · Physics 2009-11-06 A. Cavaliere , N. Menci

We present the analytical formulas, derived based on the halo model, to compute the cross-correlation between the thermal Sunyaev-Zel'dovich (SZ) effect and the distribution of galaxy clusters. By binning the clusters according to their…

Cosmology and Nongalactic Astrophysics · Physics 2013-05-30 Wenjuan Fang , Kenji Kadota , Masahiro Takada

The thermal Sunyaev-Zel'dovich (tSZ) effect is the inverse-Compton scattering of cosmic microwave background (CMB) photons off hot, ionized electrons, primarily located in galaxy groups and clusters. Recent years have seen immense…

Cosmology and Nongalactic Astrophysics · Physics 2015-10-22 J. Colin Hill

The Sunyaev-Zel'dovich (hereafter SZ) effect is a promising tool to derive the gas temperature of galaxy clusters. The approximation of a spherically symmetric gas distribution is usually used to determine the temperature structure of…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-27 D. A. Prokhorov , Y. Dubois , S. Nagataki , T. Akahori , K. Yoshikawa

We discuss the consequences of the spectral and morphological modification of galaxy cluster radio halos due to the Sunyaev-Zeldovich (SZ) effect for the interpretation of existing and upcoming high frequency radio observations. Likely…

Astrophysics · Physics 2009-11-07 Torsten A. Ensslin

We investigate the spatial behaviour of the total comptonization parameter $y_{tot}$ evaluated for a galaxy cluster containing two population of electrons: the thermal population, with energy around some KeV and whose trace is evident in…

Astrophysics · Physics 2010-12-13 E. Palladino , S. Colafrancesco , P. Marchegiani

Galaxy clusters are not iso-thermal, and the radial temperature dependence will affect the cluster parameters derived through the observation of the Sunyaev-Zeldovich (SZ) effect. We show that the derived peculiar velocity will be…

Astrophysics · Physics 2009-11-10 Steen H. Hansen

The relativistic Sunyaev-Zel'dovich (SZ) effect offers a method, independent of X-ray, for measuring the temperature of the intracluster medium (ICM) in the hottest systems. Here, using N-body/hydrodynamic simulations of three galaxy…

Astrophysics · Physics 2009-11-13 Scott T. Kay , Leila C. Powell , Andrew R. Liddle , Peter A. Thomas

Recent detections of the cross-correlation of the thermal Sunyaev-Zel'dovich (tSZ) effect and weak gravitational lensing (WL) enable unique studies of cluster astrophysics and cosmology. In this work, we present constraints on the amplitude…

Cosmology and Nongalactic Astrophysics · Physics 2018-01-25 Ken Osato , Samuel Flender , Daisuke Nagai , Masato Shirasaki , Naoki Yoshida

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…

The thermal Sunyaev-Zel'dovich effect is an important probe of clusters of galaxies, and has the attractive property of being proportional to the thermal energy content of the intracluster medium. With the assistance of X-ray data, the…

Astrophysics · Physics 2007-05-23 Mark Birkinshaw

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…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-23 A. Cavaliere , A. Lapi
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