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The kinetic Sunyaev Zel'dovich (kSZ) and polarized Sunyaev Zel'dovich (pSZ) effects are temperature and polarization anisotropies induced by the scattering of CMB photons from structure in the post-reionization Universe. In the case of the…

宇宙学与河外天体物理 · 物理学 2018-12-12 Anne-Sylvie Deutsch , Emanuela Dimastrogiovanni , Matthew C. Johnson , Moritz Münchmeyer , Alexandra Terrana

The cosmic microwave background (CMB) photons that scatter off free electrons in the large-scale structure induce a linear polarization pattern proportional to the remote CMB temperature quadrupole observed in the electrons' rest frame. The…

宇宙学与河外天体物理 · 物理学 2022-10-12 Selim C. Hotinli , Gilbert P. Holder , Matthew C. Johnson , Marc Kamionkowski

Secondary CMB polarization is induced by the late-time scattering of CMB photons by free electrons on our past light cone. This polarized Sunyaev Zel'dovich (pSZ) effect is sensitive to the electrons' locally observed CMB quadrupole, which…

宇宙学与河外天体物理 · 物理学 2018-04-25 Anne-Sylvie Deutsch , Matthew C. Johnson , Moritz Münchmeyer , Alexandra Terrana

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

Observational cosmology has become an important laboratory for testing General Relativity, with searches for modified gravity forming a significant portion of the science case for existing and future surveys. In this paper, we illustrate…

宇宙学与河外天体物理 · 物理学 2019-10-23 Zhen Pan , Matthew C. Johnson

The kinetic Sunyaev Zel'dovich (kSZ) effect, cosmic microwave background (CMB) anisotropies induced by scattering from free electrons in bulk motion, is a primary target of future CMB experiments. Measurements of the kSZ effect have the…

宇宙学与河外天体物理 · 物理学 2018-09-12 Juan I. Cayuso , Matthew C. Johnson , James B. Mertens

We consider the polarized Sunyaev-Zel'dovich (pSZ) effect for a tomographic probe of cosmic birefringence, including all relevant terms of the pSZ effect in the cosmic microwave background (CMB) observables, some of which were ignored in…

宇宙学与河外天体物理 · 物理学 2024-12-30 Toshiya Namikawa , Ippei Obata

Upcoming cosmic microwave background (CMB) surveys will soon make the first detection of the polarized Sunyaev-Zel'dovich effect, the linear polarization generated by the scattering of CMB photons on the free electrons present in collapsed…

宇宙学与河外天体物理 · 物理学 2018-06-04 Joel Meyers , P. Daniel Meerburg , Alexander van Engelen , Nicholas Battaglia

The kinetic Sunyaev-Zel'dovich (kSZ) effect is a secondary cosmic microwave background (CMB) anisotropy induced by the scattering of CMB photons off intervening electrons. Through cross-correlations with tracers of large-scale structure,…

宇宙学与河外天体物理 · 物理学 2021-04-28 Gabriela Sato-Polito , José Luis Bernal , Kimberly K. Boddy , Marc Kamionkowski

The kinetic Sunyaev Zel'dovich (kSZ) effect is a blackbody cosmic microwave background (CMB) temperature anisotropy induced by Thomson scattering off free electrons in bulk motion with respect to the CMB rest frame. The statistically…

宇宙学与河外天体物理 · 物理学 2026-05-11 Richard Bloch , Matthew C. Johnson

Due to cosmic variance we cannot learn any more about large-scale inhomogeneities from the primary cosmic microwave background (CMB) alone. More information on large scales is essential for resolving large angular scale anomalies in the…

宇宙学与河外天体物理 · 物理学 2017-03-08 Alexandra Terrana , Mary-Jean Harris , Matthew C. Johnson

If the physics behind dark energy and/or dark matter violates the parity symmetry assumed in the standard cosmological paradigm, the linear polarization of the cosmic microwave background (CMB) photons can rotate due to their coupling to…

宇宙学与河外天体物理 · 物理学 2022-11-08 Nanoom Lee , Selim C. Hotinli , Marc Kamionkowski

High-resolution, low-noise observations of the cosmic microwave background (CMB) planned for the near-future will enable new cosmological probes based on re-scattered CMB photons -- the secondary CMB. At the same time, enormous galaxy…

宇宙学与河外天体物理 · 物理学 2019-10-16 Dagoberto Contreras , Matthew C. Johnson , James B. Mertens

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

One of the major goals of future cosmic microwave background (CMB) $B$-mode polarization experiments is the detection of primordial gravitational waves through an unbiased measurement of the tensor-to-scalar ratio $r$. Robust detection of…

宇宙学与河外天体物理 · 物理学 2023-04-26 Divesh Jain , Tirthankar Roy Choudhury , Suvodip Mukherjee , Sourabh Paul

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…

Secondary CMB anisotropies and polarization provide a laboratory to study structure formation in the reionized epoch. We consider the kinetic Sunyaev-Zel'dovich effect from mildly nonlinear large-scale structure and show that it is a…

天体物理学 · 物理学 2009-10-31 Wayne Hu

In the present work, we propose a new method aiming at extracting the kinetic Sunyaev-Zel'dovich (KSZ) temperature fluctuations embedded in the primary anisotropies of the cosmic microwave background (CMB). We base our study on simulated…

天体物理学 · 物理学 2009-11-10 O. Forni , N. Aghanim

We present a novel mathematical formalism that allows to easily compute the expected kinetic Sunyaev Zeldovich (kSZ) signal in intensity and polarization due to an anisotropic primordial Cosmic Microwave Background (CMB). We derive the…

宇宙学与河外天体物理 · 物理学 2016-07-20 Siavash Yasini , Elena Pierpaoli

The polarized Sunyaev-Zel'dovich (pSZ) effect is sourced by the Thomson scattering of CMB photons from distant free electrons and yields a novel view of the CMB quadrupole throughout the observable Universe. Galaxy shear measures the shape…

宇宙学与河外天体物理 · 物理学 2022-10-19 Oliver H. E. Philcox , Matthew C. Johnson
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