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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…

宇宙学与河外天体物理 · 物理学 2018-01-25 Ken Osato , Samuel Flender , Daisuke Nagai , Masato Shirasaki , Naoki Yoshida

A new generation of CMB experiments will soon make sensitive high resolution maps of the microwave sky. At angular scales less than $\sim$10 arcminutes, most CMB anisotropies are generated at z $< 1000$, rather than at the surface of last…

天体物理学 · 物理学 2011-02-11 Mario A. Riquelme , David N. Spergel

We revise and extend the stochastic approach to cumulative weak lensing (hereafter the sGL method) first introduced in Ref. [1]. Here we include a realistic halo mass function and density profiles to model the distribution of mass between…

宇宙学与河外天体物理 · 物理学 2011-01-19 Kimmo Kainulainen , Valerio Marra

We present a first joint analysis of the power spectra of the thermal Sunyaev-Zeldovich (tSZ) effect measured by the Planck and the number density fluctuations of galaxies in the 2MASS redshift survey (2MRS) catalog, including their…

宇宙学与河外天体物理 · 物理学 2018-09-11 Ryu Makiya , Shin'ichiro Ando , Eiichiro Komatsu

We demonstrate the use of deep network to learn the distribution of data from state-of-the-art hydrodynamic simulations of the CAMELS project. To this end, we train a generative adversarial network to generate images composed of three…

宇宙学与河外天体物理 · 物理学 2024-10-25 Sambatra Andrianomena , Sultan Hassan , Francisco Villaescusa-Navarro

The Sunyaev-Zel'dovich effect is a powerful new tool for finding and studying clusters at high redshift, particularly in combination with their X-ray properties. In this paper we quantify the expected scaling relations between these…

天体物理学 · 物理学 2009-11-10 Antonio C. da Silva , Scott T. Kay , Andrew R. Liddle , Peter A. Thomas

Using a thermal Sunyaev-Zel'dovich (tSZ) signal, we search for hot gas in superclusters identified using the Sloan Digital Sky Survey Data Release 7 (SDSS/DR7) galaxies. We stack a Comptonization y map produced by the Planck Collaboration…

宇宙学与河外天体物理 · 物理学 2019-05-15 H. Tanimura , N. Aghanim , M. Douspis , A. Beelen , V. Bonjean

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

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 kinetic SZ effect, which is the dominant CMB source at arc-minute scales and $\nu \sim 217$ Ghz, probes the ionized gas peculiar momentum up to the epoch of reionization and is a sensitive measure of the reionization history. We ran…

天体物理学 · 物理学 2009-11-07 Pengjie Zhang , Ue-Li Pen , Hy Trac

The thermal Sunyaev-Zeldovich (SZ) effect serves as a direct potential probe of the energetic outflows from quasars that are responsible for heating the intergalactic medium. In this work, we use the GIZMO meshless finite mass hydrodynamic…

宇宙学与河外天体物理 · 物理学 2023-06-26 Avinanda Chakraborty , Suchetana Chatterjee , Mark Lacy , Soumya Roy , Samrat Roy , Rudrani Kar Chowdhury

The thermal Sunyaev$-$Zel'dovich (SZ) effect offers a unique probe of the hot and diffuse universe that could help close the missing baryon problem. Traditional extractions of the SZ effect, however, exhibit systematic noise that may lead…

天体物理仪器与方法 · 物理学 2025-09-09 Cameron T. Pratt , Zhijie Qu , Joel N. Bregman

Combinations of galaxy surveys and cosmic microwave background secondaries, such as the thermal Sunyaev Zeldovich (tSZ) effect, are increasingly being used to jointly constrain cosmology and astrophysical properties of the gas within and…

宇宙学与河外天体物理 · 物理学 2025-10-10 M. Lokken , J. R. Bond , R. Hložek , N. J. Carlson , Z. Li , A. van Engelen

Uncertain feedback processes in galaxies affect the distribution of matter, currently limiting the power of weak lensing surveys. If we can identify cosmological statistics that are robust against these uncertainties, or constrain these…

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

We analyze measurements of the thermal Sunyaev-Zeldovich (tSZ) effect arising in the circumgalactic medium (CGM) of $L^*$ galaxies, reported by Bregman et al. 2022 and Das et al. 2023. In our analysis we use the Faerman et al. 2017 and…

星系天体物理 · 物理学 2024-08-14 Yossi Oren , Amiel Sternberg , Christopher F. McKee , Yakov Faerman , Shy Genel

The impact of feedback from galaxy formation on cosmological probes is typically quantified in terms of the suppression of the matter power spectrum in hydrodynamical compared to gravity-only simulations. In this paper, we instead study how…

Producing thousands of simulations of the dark matter distribution in the Universe with increasing precision is a challenging but critical task to facilitate the exploitation of current and forthcoming cosmological surveys. Many inexpensive…

宇宙学与河外天体物理 · 物理学 2023-02-02 Davide Piras , Benjamin Joachimi , Francisco Villaescusa-Navarro

Ongoing and planned weak lensing (WL) surveys are becoming deep enough to contain information on angular scales down to a few arcmin. To fully extract information from these small scales, we must capture non-Gaussian features in the…

宇宙学与河外天体物理 · 物理学 2022-02-09 Tianhuan Lu , Zoltán Haiman , José Manuel Zorrilla Matilla

The thermal Sunyaev-Zeldovich (SZ) effect and the X-ray emission offer separate and highly complementary probes of the thermodynamics of the intracluster medium, particularly on their radial dependence. We already released \texttt{JoXSZ},…

宇宙学与河外天体物理 · 物理学 2022-02-09 Fabio Castagna , Stefano Andreon , Alberto Trombetta , Marco Landoni