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相关论文: Science with an ngVLA: The Sunyaev-Zeldovich Effec…

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This paper reports the measurement of the Sunyaev-Zeldovich effect (SZE) in the nearby clusters A478, A2142 and A2256 at 32 GHz. These clusters are part of a complete X-ray flux limited sample, which includes the previously measured Coma…

天体物理学 · 物理学 2009-10-30 S. T. Myers , J. E. Baker , A. C. S. Readhead , E. M. Leitch , T. Herbig

The observed relationship between X-ray luminosity and temperature of the diffuse intercluster medium clearly shows the effect of nongravitational heating on the formation of galaxy clusters. Quasar feedback into the intergalactic medium…

天体物理学 · 物理学 2009-11-13 Suchetana Chatterjee , Arthur Kosowsky

We have imaged the Sunyaev-Zel'dovich (SZ) effect signals at 140 and 270 GHz towards ten galaxy clusters with Bolocam and AzTEC/ASTE. We also used Planck data to constrain the signal at large angular scales, Herschel-SPIRE images to…

We present 10" to 18" images of four massive clusters of galaxies through the Sunyaev-Zel'dovich Effect (SZE). These measurements, made at 90~GHz with the MUSTANG receiver on the Green Bank Telescope (GBT), reveal pressure sub-structure to…

宇宙学与河外天体物理 · 物理学 2015-05-20 P. M. Korngut , S. R. Dicker , E. D. Reese , B. S. Mason , M. J. Devlin , T. Mroczkowski , C. L. Sarazin , M. Sun , J. Sievers

In this paper we probe the hot, post-shock gas component of quasar-driven winds through the thermal Sunyaev-Zel'dovich (tSZ) effect. Combining datasets from the Atacama Cosmology Telescope, the $\textit{Herschel}$ Space Observatory, and the…

We present high resolution (9$^{\prime \prime}$) imaging of the Sunyaev-Zel'dovich Effect (SZE) toward two massive galaxy clusters, MACS J0647.7+7015 ($z=0.591$) and MACS J1206.2-0847 ($z=0.439$). We compare these 90 GHz measurements, taken…

One of the most important and poorly-understood issues in structure formation is the role of outflows driven by active galactic nuclei (AGN). Using large-scale cosmological simulations, we compute the impact of such outflows on the…

天体物理学 · 物理学 2009-11-13 Evan Scannapieco , Robert J. Thacker , H. M. P. Couchman

Perhaps the most controversial idea in modern cosmology is that our observable universe is contained within one bubble among many, all inhabiting the eternally inflating multiverse. One of the few way to test this idea is to look for…

宇宙学与河外天体物理 · 物理学 2015-06-01 Pengjie Zhang , Matthew C. Johnson

We report millimeter-wavelength observations of the Sunyaev-Zel'dovich (S-Z) effect in two distant galaxy clusters. A relativistically correct analysis of the S-Z data is combined with the results of X-ray observations to determine the…

天体物理学 · 物理学 2016-08-30 W. L. Holzapfel , P. A. R. Ade , S. E. Church , P. D. Mauskopf , Y. Rephaeli , T. M. Wilbanks , A. E. Lange

We investigate the potential of exploiting the Sunyaev-Zeldovich effect (SZE) to study the properties of hot gas in galaxy groups. It is shown that, with upcoming SZE surveys, one can stack SZE maps around galaxy groups of similar halo…

宇宙学与河外天体物理 · 物理学 2015-05-19 Ran Li , H. J. Mo , Zuhui Fan , Frank C. van den Bosch , Xiaohu Yang

The Sunyaev Zel'dovich effect (SZ effect) is a complete probe of ionized baryons, the majority of which are likely hiding in the intergalactic medium. We ran a $512^3$ $\Lambda$CDM simulation using a moving mesh hydro code to compute the…

天体物理学 · 物理学 2009-11-07 Pengjie Zhang , Ue-Li Pen , Benjamin Wang

Energetic feedback due to active galactic nuclei (AGN) is likely to play an important role in the observed anti-hierarchical trend in the evolution of galaxies, and yet the energy injected into the circumgalactic medium by this process is…

星系天体物理 · 物理学 2016-06-09 Alexander Spacek , Evan Scannapieco , Seth Cohen , Bhavin Joshi , Philip Mauskopf

Anisotropies of the Sunyaev Zel'dovich (SZ) effect serve as a powerful probe of the thermal history of the universe. At high redshift, hot galactic outflows driven by supernovae (SNe) can inject a significant amount of thermal energy into…

星系天体物理 · 物理学 2025-01-13 Guochao Sun , Steven R. Furlanetto , Adam Lidz

The Sunyaev-Zel'dovich (SZ) effect is a direct probe of thermal energy content of the Universe, induced in the cosmic microwave background (CMB) sky through scattering of CMB photons off hot electrons in the intracluster medium (ICM). We…

天体物理学 · 物理学 2008-11-26 Niayesh Afshordi , Yen-Ting Lin , Daisuke Nagai , Alastair J. R. Sanderson

The Sunyaev-Zel'dovich Array (SZA), an eight element interferometer designed to probe the Sunyaev-Zel'dovich effect (SZE) from galaxy clusters, which I helped construct and operate, is described here (Part I). I then use SZA observations to…

宇宙学与河外天体物理 · 物理学 2011-01-28 Tony Mroczkowski

The sky-averaged redshifted 21 cm signal from Cosmic Dawn is a uniquely sensitive tracer of early heating and ionisation, but it remains challenging to measure directly. The Sunyaev-Zel'dovich effect of the 21 cm background (SZE-21cm)…

宇宙学与河外天体物理 · 物理学 2026-04-29 Charles Mpho Takalana

The Sunyaev-Zel'dovich (SZ) effect of a cluster of galaxies is usually measured after background radio sources are removed from the cluster field. Gravitational lensing by the cluster potential leads to a systematic deficit in the residual…

天体物理学 · 物理学 2009-10-28 Abraham Loeb , Alexandre Refregier

We present the first results from a new generation of simulated large sky coverage (~100 square degrees) Sunyaev-Zeldovich effect (SZE) cluster surveys using the cosmological adaptive mesh refinement N-body/hydro code Enzo. We have…

We present Sunyaev-Zel'dovich Effect (SZE) scaling relations for 38 massive galaxy clusters at redshifts 0.14<z0.89, observed with both the Cchandra X-ray Observatory and the centimeter-wave SZE imaging system at the BIMA and OVRO…

A forward-looking facility such as the next generation Very Large Array (ngVLA) requires forward-looking science. The ngVLA will enable stellar wind detections or robust constraints on upper limits sufficient to bridge the gap between…

太阳与恒星天体物理 · 物理学 2017-11-15 Rachel A. Osten , Michael K. Crosley