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相关论文: Sunyaev-Zeldovich Effect from Quasar-driven Blast-…

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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…

天体物理学 · 物理学 2009-11-06 A. Cavaliere , N. Menci

The Sunyaev-Zeldovich effect towards clusters of galaxies has become a standard probe of cosmology. It is caused by the scattering of photons from the cosmic microwave background (CMB) by the hot cluster electron gas. In a similar manner,…

宇宙学与河外天体物理 · 物理学 2023-04-03 Sandeep Kumar Acharya , Jens Chluba

The non-linear evolution of the energy density of the radiation is shown to induce spectral distortions of the cosmic microwave background both at recombination and during the reionization era. This distortion has the same spectral…

宇宙学与河外天体物理 · 物理学 2011-08-24 Cyril Pitrou , Francis Bernardeau , Jean-Philippe Uzan

The Sunyaev--Zel'dovich (SZ) effect is a global distortion of the Cosmic Microwave Background (CMB) spectrum as a result of its interaction with a hot electron plasma in the intracluster medium of large structures gravitationally viralized…

宇宙学与河外天体物理 · 物理学 2018-01-25 Alexander Bonilla , Jairo E. Castillo

We estimate the heating of the intergalactic medium due to shocks arising from structure formation. Heating of the gas outside the collapsed regions, with small overdensities (${n_b \over {\bar n_b}}\ll 200$) is considered here, with the…

天体物理学 · 物理学 2009-11-06 Biman Nath , Joseph Silk

The cosmic microwave background radiation (CMBR) is providing important clues into the evolution of the early universe. In this Science Perspective, Joy and Carlstrom discuss one feature of the CMBR, the Sunyaev-Zel'dovich effect, which can…

天体物理学 · 物理学 2007-05-23 Marshall Joy , John E. Carlstrom

The interaction of the cosmic microwave background (CMB) with the hot gas in clusters of galaxies, the so-called Sunyaev--Zel'dovich (SZ) effect, is a very useful tool that allows us to determine the physical conditions in such clusters and…

宇宙学与河外天体物理 · 物理学 2017-05-24 M. Lopez-Corredoira , C. M. Gutierrez , R. T. Genova-Santos

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…

天体物理学 · 物理学 2009-10-31 P. Blasi , A. V. Olinto , A. Stebbins

We use moving mesh hydrodynamical simulations to make maps of Sunyaev-Zeldovich effect. We present these maps for several cosmological models and explore their lowest moments. We find that the first moment, the mean Compton $y$ parameter,…

天体物理学 · 物理学 2009-10-31 Uros Seljak , Juan Burwell , Ue-Li Pen

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…

天体物理学 · 物理学 2007-05-23 Mark Birkinshaw

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

We use hydrodynamical simulations to assess the impact of radiative cooling and `pre-heating' on predictions for the Sunyaev--Zel'dovich (SZ) effect. Cooling significantly reduces both the mean SZ signal and its angular power spectrum,…

In order to assess the potential of future microwave anisotropy space experiments for detecting clusters by their Sunyaev-Zeldovich (SZ) thermal effect, we have simulated maps of the large scale distribution of their Compton parameter $y$…

天体物理学 · 物理学 2007-05-23 N. Aghanim , A. De Luca , F. R. Bouchet , G. Gispert , J. L. Puget

We discuss the photoionization of the intergalactic medium by early formed quasars and propose a mechanism which could generate measurable temperature fluctuations $\delta_{T }~=~\Delta T/T$ of the cosmic microwave background (CMB). Early…

天体物理学 · 物理学 2007-05-23 N. Aghanim , F. X. Desert , J. L. Puget , R. Gispert

The presence of ubiquitous magnetic fields in the universe is suggested from observations of radiation and cosmic ray from galaxies or the intergalactic medium (IGM). One possible origin of cosmic magnetic fields is the magnetogenesis in…

宇宙学与河外天体物理 · 物理学 2018-12-27 Teppei Minoda , Kenji Hasegawa , Hiroyuki Tashiro , Kiyotomo Ichiki , Naoshi Sugiyama

We report the first detection of the Sunyaev-Zel'dovich increment on the cosmic microwave background (CMB) at submillimetre wavelengths in the direction of a cluster of galaxies.It was achieved towards the rich cluster Abell 2163, using the…

The Sunyaev-Zel'dovich (SZ) effect expected to be associated with massive star-formation activity produced during the formation of the most luminous bulges of normal galaxies is discussed. Using 1-D chemohydrodynamical models for spheroidal…

The Sunyaev-Zeldovich (SZ) effect is a spectral distortion in the Cosmic Microwave Background (CMB), caused due to up-scattering of CMB photons by high energy electron distributions. The largest SZ distortion in the CMB is caused by the hot…

宇宙学与河外天体物理 · 物理学 2015-12-14 Dhruba Dutta Chowdhury