☆ 4.7 Article

QCD axion dark matter and the cosmic dipole problem

PHYSICAL REVIEW D (2023)

Related references

Note: Only part of the references are listed.

Article Astronomy & Astrophysics

Is the observable Universe consistent with the cosmological principle?

Pavan Aluri et al.

Summary: The cosmological principle is the foundation of modern cosmology, but tensions within the ?CDM model, especially the discrepancy in the value of the Hubble constant, may have implications for the cosmological principle itself. This review surveys current evidence for deviations from the cosmological principle, including variations of cosmological parameters, discrepancies in cosmic dipoles, and mysterious alignments in quasar polarizations and galaxy spins.

CLASSICAL AND QUANTUM GRAVITY (2023)

Add to Collection

Article Astronomy & Astrophysics

Dipole cosmology: the Copernican paradigm beyond FLRW

Chethan Krishnan et al.

Journal of Cosmology and Astroparticle Physics (2023)

Add to Collection

Article Astronomy & Astrophysics

A Challenge to the Standard Cosmological Model

Nathan J. Secrest et al.

Summary: This study presents the joint analysis of catalogs of radio galaxies and quasars to examine their distribution in the sky in relation to the standard cosmological model. The results show that both radio galaxies and quasars have dipole anisotropy in their sky distribution, consistent with the motion inferred from the cosmic microwave background (CMB), suggesting an intrinsic anisotropy in cosmologically distant sources.

ASTROPHYSICAL JOURNAL LETTERS (2022)

Add to Collection

Article Astronomy & Astrophysics

Galaxy number-count dipole and superhorizon fluctuations

Guillem Domenech et al.

Summary: In this study, the tension between the dipole anisotropy of number counts of cosmologically distant sources and the cosmic microwave background (CMB) is investigated. It is found that primordial perturbations with wavelength comparable to or exceeding the Hubble radius can induce a number count dipole, but smaller modes are too small to reconcile the dipole tension.

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS (2022)

Add to Collection

Article Physics, Multidisciplinary

Anomalies in physical cosmology

P. J. E. Peebles

Summary: The passage highlights the importance of the Lambda CDM cosmology as a good approximation to reality, while acknowledging its incompleteness and the need for further research on anomalies that could lead to a better cosmological theory.

ANNALS OF PHYSICS (2022)

Add to Collection

Article Astronomy & Astrophysics

A new way to test the Cosmological Principle: measuring our peculiar velocity and the large-scale anisotropy independently

Tobias Nadolny et al.

Summary: A novel approach is presented to disentangle two key contributions to the largest-scale anisotropy of the galaxy distribution, allowing for a relatively accurate measurement of our peculiar velocity and the intrinsic anisotropy of large-scale structures in galaxy surveys. The method enables two simultaneous tests of the Cosmological Principle, comparing observations of our peculiar velocity with the CMB dipole and testing for significant effects beyond the standard cosmological model.

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS (2021)

Add to Collection

Article Astronomy & Astrophysics

Cosmic radio dipole: Estimators and frequency dependence

Thilo M. Siewert et al.

Summary: The study used simulated source count maps to test the observed cosmic radio dipole, finding a superiority in the quadratic estimator. Across four radio source catalogues, an increasing dipole amplitude with decreasing frequency was observed, exceeding expectations derived from the CMB dipole.

ASTRONOMY & ASTROPHYSICS (2021)

Add to Collection

Article Astronomy & Astrophysics

A Test of the Cosmological Principle with Quasars

Nathan J. Secrest et al.

Summary: The study reveals that the direction of the dipole in the quasar sky is similar to that of the cosmic microwave background (CMB), but its amplitude is over twice as large as expected, rejecting the canonical interpretation of the CMB dipole. This conflicts with the cosmological principle, a foundational assumption of the concordance ΛCDM model.

ASTROPHYSICAL JOURNAL LETTERS (2021)

Add to Collection

Article Astronomy & Astrophysics

Planck 2018 results: X. Constraints on inflation

Y. Akrami et al.

ASTRONOMY & ASTROPHYSICS (2020)

Add to Collection

Article Astronomy & Astrophysics

Planck 2018 results: I. Overview and the cosmological legacy of Planck

N. Aghanim et al.

ASTRONOMY & ASTROPHYSICS (2020)

Add to Collection

Review Physics, Multidisciplinary

The landscape of QCD axion models

Luca Di Luzio et al.

PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS (2020)

Add to Collection

Correction Physics, Multidisciplinary

Axions and the strong CP problem (vol 82, 557, 2010)

Jihn E. Kim et al.

REVIEWS OF MODERN PHYSICS (2019)

Add to Collection

Article Astronomy & Astrophysics

Cosmic microwave background dipole asymmetry could be explained by axion monodromy cosmic strings

Qiaoli Yang et al.

PHYSICS OF THE DARK UNIVERSE (2019)

Add to Collection

Article Astronomy & Astrophysics

Large disparity in cosmic reference frames determined from the sky distributions of radio sources and the microwave background radiation

Ashok K. Singal

PHYSICAL REVIEW D (2019)

Add to Collection

Article Astronomy & Astrophysics

Probing the Cosmological Principle in the counts of radio galaxies at different frequencies

Carlos A. P. Bengaly et al.

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS (2018)

Add to Collection

Article Astronomy & Astrophysics

The kinematic dipole in galaxy redshift surveys

Roy Maartens et al.

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS (2018)

Add to Collection

Article Astronomy & Astrophysics

Hemispherical power asymmetry of the cosmic microwave background from a remnant of a pre-inflationary topological defect

Qiaoli Yang et al.

PHYSICAL REVIEW D (2017)

Add to Collection

Article Astronomy & Astrophysics

Revisiting the NVSS number count dipole

Prabhakar Tiwari et al.

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS (2016)

Add to Collection

Review Physics, Multidisciplinary

Axion cosmology

David J. E. Marsh

PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS (2016)

Add to Collection

Article Astronomy & Astrophysics

Cosmic radio dipole from NVSS and WENSS

M. Rubart et al.

ASTRONOMY & ASTROPHYSICS (2013)

Add to Collection

Article Astronomy & Astrophysics

The CLASSgal code for relativistic cosmological large scale structure

Enea Di Dio et al.

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS (2013)

Add to Collection

Review Astronomy & Astrophysics

Dipoles in the sky

Cameron Gibelyou et al.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2012)

Add to Collection

Article Astronomy & Astrophysics

LARGE PECULIAR MOTION OF THE SOLAR SYSTEM FROM THE DIPOLE ANISOTROPY IN SKY BRIGHTNESS DUE TO DISTANT RADIO SOURCES

Ashok K. Singal

ASTROPHYSICAL JOURNAL LETTERS (2011)

Add to Collection

Article Astronomy & Astrophysics

What galaxy surveys really measure

Camille Bonvin et al.

PHYSICAL REVIEW D (2011)

Add to Collection

Article Astronomy & Astrophysics

THE WIDE-FIELD INFRARED SURVEY EXPLORER (WISE): MISSION DESCRIPTION AND INITIAL ON-ORBIT PERFORMANCE

Edward L. Wright et al.

ASTRONOMICAL JOURNAL (2010)

Add to Collection

Article Astronomy & Astrophysics

Axion cosmology revisited

Olivier Wantz et al.

PHYSICAL REVIEW D (2010)

Add to Collection

Article Physics, Multidisciplinary

Axions and the strong CP problem

Jihn E. Kim et al.

REVIEWS OF MODERN PHYSICS (2010)

Add to Collection

Article Astronomy & Astrophysics

Superhorizon perturbations and the cosmic microwave background

Adrienne L. Erickcek et al.

PHYSICAL REVIEW D (2008)

Add to Collection

Article Astronomy & Astrophysics

Must cosmological perturbations remain nonadiabatic after multifield inflation?

S Weinberg

PHYSICAL REVIEW D (2004)

Add to Collection

Article Astronomy & Astrophysics

Adiabatic modes in cosmology

S Weinberg

PHYSICAL REVIEW D (2003)

Add to Collection

© Peeref 2019-2024. All rights reserved.