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Related papers: Separating the Weak Lensing and Kinetic SZ Effects…

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The power spectrum of reconstructed cosmic microwave background (CMB) lensing maps is a powerful tool for constraints on cosmological parameters like the sum of the neutrino masses and the dark energy equation of state. One possible…

Cosmology and Nongalactic Astrophysics · Physics 2022-02-23 Hongbo Cai , Mathew S. Madhavacheril , J. Colin Hill , Arthur Kosowsky

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…

Cosmology and Nongalactic Astrophysics · Physics 2020-07-01 Juan I. Cayuso , Matthew C. Johnson

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,…

Cosmology and Nongalactic Astrophysics · Physics 2021-04-28 Gabriela Sato-Polito , José Luis Bernal , Kimberly K. Boddy , Marc Kamionkowski

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…

Astrophysics · Physics 2009-11-10 O. Forni , N. Aghanim

Secondary anisotropies of the CMB have the potential to reveal intricate details about the history of our universe between the present and recombination epochs. However, because the CMB we observe is the projected sum of a multitude of…

Astrophysics · Physics 2009-11-10 Olivier Doré , Joseph F. Hennawi , David N. Spergel

During the epoch of reionization, local variations in the ionized fraction (patchiness) imprint arcminute-scale temperature anisotropies in the CMB through the kinetic Sunyaev-Zel'dovich (kSZ) effect. We employ an improved version of an…

The kinetic Sunyaev-Zeldovich (kSZ) effect will be an important source of cosmological and astrophysical information in upcoming surveys of the cosmic microwave background (CMB). However, the kSZ effect will also act as the dominant source…

Cosmology and Nongalactic Astrophysics · Physics 2023-04-10 Simon Foreman , Selim C. Hotinli , Mathew S. Madhavacheril , Alexander van Engelen , Christina D. Kreisch

Gravitational lensing of the cosmic microwave background (CMB) is expected to be amongst the most powerful cosmological tools for ongoing and upcoming CMB experiments. In this work, we investigate a bias to CMB lensing reconstruction from…

Cosmology and Nongalactic Astrophysics · Physics 2018-01-26 Simone Ferraro , J. Colin Hill

(Abridged) The hot gas in the IGM produces anisotropies in the Cosmic Microwave Background (CMB) through the thermal Sunyaev-Zel'dovich (SZ) effect. The SZ effect is a powerful probe of large-scale structure in the universe and must be…

Astrophysics · Physics 2009-12-30 A. Refregier , E. Komatsu , D. N. Spergel , U. -L. Pen

We discuss non-Gaussian effects associated with the local large-scale structure contributions to the Cosmic Microwave Background (CMB) anisotropies through the thermal Sunyaev-Zel'dovich (SZ) effect. The non-Gaussianities associated with…

Astrophysics · Physics 2009-11-06 Asantha Cooray

Measurements of secondary cosmic microwave background (CMB) anisotropies, such as the Sunyaev-Zel'dovich (SZ) effect, will enable new tests of neutrino and dark sector properties. The kinetic SZ (kSZ) effect is produced by cosmological…

Cosmology and Nongalactic Astrophysics · Physics 2023-03-07 Gerrit S. Farren , Daniel Grin , Andrew H. Jaffe , Renée Hložek , David J. E. Marsh

It is now well known that mode-coupling effects associated with certain secondary effects generate higher order correlations in cosmic microwave background (CMB) temperature anisotropies, beyond the two-point function. In order to extract…

Astrophysics · Physics 2009-11-06 Asantha Cooray

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…

Cosmology and Nongalactic Astrophysics · Physics 2022-10-12 Selim C. Hotinli , Gilbert P. Holder , Matthew C. Johnson , Marc Kamionkowski

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…

If the gas in filaments and halos shares the same velocity field than the luminous matter, it will generate measurable temperature anisotropies due to the Kinematic Sunyaev-Zeldovich effect. We compute the distribution function of the KSZ…

Astrophysics · Physics 2009-11-13 F. Atrio-Barandela , J. P. Muecket , R. Genova-Santos

With the advent of current and future high-resolution CMB experiments, the kinematic Sunyaev-Zel'dovich (kSZ) effect has become a unique observational probe of the distribution of baryons and velocities in the Universe. In this work, we…

Cosmology and Nongalactic Astrophysics · Physics 2025-11-14 Raagini Patki , Nicholas Battaglia , J. Colin Hill

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…

Cosmology and Nongalactic Astrophysics · Physics 2026-05-11 Richard Bloch , Matthew C. Johnson

The secondary anisotropies of the cosmic microwave background (CMB) provide a wealth of astrophysical and cosmological information. Pairing measurements of the CMB temperature map obtained by DR5 of the Atacama Cosmology Telescope (ACT)…

Cosmology and Nongalactic Astrophysics · Physics 2025-06-24 Boryana Hadzhiyska , Noah Sailer , Simone Ferraro

We discuss the real-space moments of temperature anisotropies in the cosmic microwave background (CMB) due to weak gravitational lensing by intervening large-scale structure. We show that if the probability distribution function of…

Astrophysics · Physics 2009-11-07 Michael Kesden , Asantha Cooray , Marc Kamionkowski

Compton scattering of the cosmic microwave background (CMB) from hot ionized gas produces a range of effects, and the leading order effects are the kinetic and thermal Sunyaev Zel'dovich (kSZ and tSZ) effects. In the near future, CMB…

Cosmology and Nongalactic Astrophysics · Physics 2020-09-16 William R. Coulton , Atsuhisa Ota , Alexander van Engelen
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