中文
相关论文

相关论文: Constraining cosmological parameters using the pai…

200 篇论文

We present and study a new cross-pairwise estimator to extract the kinetic Sunyaev Zeldovich (kSZ) signal from galaxy clusters. The existing pairwise kSZ method involves pairing clusters with other clusters and stacking them. In the…

宇宙学与河外天体物理 · 物理学 2025-05-05 Aritra Kumar Gon , Rishi Khatri

We calculate the constraints on dark energy and cosmic modifications to gravity achievable with upcoming cosmic microwave background (CMB) surveys sensitive to the Sunyaev-Zeldovich (SZ) effects. The analysis focuses on using the mean…

宇宙学与河外天体物理 · 物理学 2015-08-06 Eva-Maria Mueller , Francesco de Bernardis , Rachel Bean , Michael Niemack

The pairwise kinematic Sunyaev-Zel'dovich (kSZ) signal from galaxy clusters is a probe of their line-of-sight momenta, and thus a potentially valuable source of cosmological information. In addition to the momenta, the amplitude of the…

宇宙学与河外天体物理 · 物理学 2016-07-04 Samuel Flender , Lindsey Bleem , Hal Finkel , Salman Habib , Katrin Heitmann , Gilbert Holder

We present the mean pairwise momentum of clusters, as observed through the kinematic Sunvaev-Zel'dovich (kSZ) effect, as a novel probe of massive neutrinos. We find that kSZ measurements with current and upcoming surveys will provide…

宇宙学与河外天体物理 · 物理学 2015-09-09 Eva-Maria Mueller , Francesco de Bernardis , Rachel Bean , Michael D. Niemack

We measure the kinematic Sunyaev-Zel'dovich (kSZ) effect, imprinted by maxBCG clusters, on the Planck SMICA map of the Cosmic Microwave Background (CMB). Our measurement, for the first time, directly accounts for uncertainties in the…

宇宙学与河外天体物理 · 物理学 2020-12-07 Nhat-Minh Nguyen , Jens Jasche , Guilhem Lavaux , Fabian Schmidt

We perform the first joint analysis of galaxy clustering (GC) and the kinetic Sunyaev-Zel'dovich (kSZ) effect to simultaneously constrain cosmological and astrophysical parameters in this work, utilizing a combination of the Atacama…

宇宙学与河外天体物理 · 物理学 2026-01-13 Shaohong Li , Yi Zheng

Yes. Future CMB experiments such as Advanced ACTPol and CMB-S4 should achieve measurements with S/N of $> 0.1$ for the typical galaxies in redshift surveys. These measurements will provide complementary measurements of the growth rate of…

宇宙学与河外天体物理 · 物理学 2017-02-14 Naonori S. Sugiyama , Teppei Okumura , David N. Spergel

We consider the prospects for measuring the pairwise kinetic Sunyaev-Zel'dovich (kSZ) signal from galaxy clusters discovered in large photometric surveys such as the Dark Energy Survey (DES). We project that the DES cluster sample will, in…

宇宙学与河外天体物理 · 物理学 2015-06-12 Ryan Keisler , Fabian Schmidt

Upcoming millimeter experiments that probe the cosmic microwave background (CMB) will observe tens of thousands of galaxy clusters through the thermal Sunyaev-Zeldovich (tSZ) effect. tSZ selected clusters are powerful probes of cosmological…

宇宙学与河外天体物理 · 物理学 2019-10-02 Dylan Cromer , Nicholas Battaglia , Mathew S. Madhavacheril

The Sunyaev-Zel'dovich (SZ) effect from clusters of galaxies should yield a significant signal in cosmic microwave background(CMB) experiments at small angular scales ($\ell \ga 1000$). Experiments with sufficient frequency coverage should…

天体物理学 · 物理学 2007-05-23 Gilbert P. Holder , John E. Carlstrom

The kinetic Sunyaev-Zel'dovich (kSZ) effect, i.e., the Doppler boost of cosmic microwave background (CMB) photons caused by their scattering off free electrons in galaxy clusters and groups with non-zero bulk velocity, is a powerful window…

宇宙学与河外天体物理 · 物理学 2023-03-22 Boris Bolliet , J. Colin Hill , Simone Ferraro , Aleksandra Kusiak , Alex Krolewski

The Sunyaev-Zel'dovich (SZ) effects are produced by the interaction of cosmic microwave background (CMB) photons with the ionized and diffuse gas of electrons inside galaxy clusters integrated along the line of sight. The two main effects…

宇宙学与河外天体物理 · 物理学 2017-02-01 G. Hurier

We detect the kinematic Sunyaev-Zel'dovich (kSZ) effect with a statistical significance of $4.2 \sigma$ by combining a cluster catalogue derived from the first year data of the Dark Energy Survey (DES) with CMB temperature maps from the…

Future high-resolution measurements of the cosmic microwave background (CMB) will produce catalogs of tens of thousands of galaxy clusters through the thermal Sunyaev-Zel'dovich (tSZ) effect. We forecast how well different configurations of…

宇宙学与河外天体物理 · 物理学 2018-01-01 Mathew Madhavacheril , Nicholas Battaglia , Hironao Miyatake

We forecast the number of galaxy clusters that can be detected via the thermal Sunyaev-Zeldovich (tSZ) signals by future cosmic microwave background (CMB) experiments, primarily the wide area survey of the CMB-S4 experiment but also…

Measurements of the Cosmic Microwave Background (CMB) temperature anisotropies on large angular scales have uncovered a number of anomalous features of marginal statistical significance, such as a hemispherical power asymmetry, lack of…

宇宙学与河外天体物理 · 物理学 2020-07-01 Juan I. Cayuso , Matthew C. Johnson

Future ground-based CMB experiments will generate competitive large-scale structure datasets by precisely characterizing CMB secondary anisotropies over a large fraction of the sky. We describe a method for constraining the growth rate of…

宇宙学与河外天体物理 · 物理学 2016-08-31 David Alonso , Thibaut Louis , Philip Bull , Pedro G. Ferreira

We develop and test a new statistical method to measure the kinematic Sunyaev-Zel'dovich (kSZ) effect. A sample of independently detected clusters is combined with the cosmic flow field predicted from a galaxy redshift survey in order to…

宇宙学与河外天体物理 · 物理学 2014-11-11 Ming Li , Raul E. Angulo , Simon D. M. White , Jens Jasche

High-precision measurements of the Cosmic Microwave Background (CMB) will soon allow for the unprecedented detection of small-scale secondary anisotropies, such as the kinetic Sunyaev-Zel'dovich (kSZ) effect. Linking the kSZ power spectrum…

We propose the use of the kinetic Sunyaev-Zel'dovich (kSZ) effect to probe the circumgalactic medium (CGM), with the aid of a spectroscopic survey covering the same area of a SZ survey. One can design an optimal estimator of the kSZ effect…

宇宙学与河外天体物理 · 物理学 2016-03-23 Jiawei Shao , Taotao Fang
‹ 上一页 1 2 3 10 下一页 ›