Is the observable Universe consistent with the cosmological principle?

PK Aluri, P Cea, P Chingangbam… - … and Quantum Gravity, 2023 - iopscience.iop.org
The cosmological principle (CP)—the notion that the Universe is spatially isotropic and
homogeneous on large scales—underlies a century of progress in cosmology. It is …

Directional variations of cosmological parameters from the Planck CMB data

S Yeung, MC Chu - Physical Review D, 2022 - APS
Recent observations suggest that there are violations of the isotropy of the Universe at large
scales, which is an important part of the cosmological principle. In this paper, we use the …

Manual laterality and cognition through evolution: An archeological perspective

NT Uomini, L Ruck - Progress in brain research, 2018 - Elsevier
To understand the evolution of lateralized motor biases and cognitive functions, we rely on
archeological methods to give us a window onto the past. Currently, the overwhelming …

Patterns of galaxy spin directions in SDSS and Pan-STARRS show parity violation and multipoles

L Shamir - Astrophysics and Space Science, 2020 - Springer
The distribution of spin directions of∼ 6.4⋅ 10 4 ∼6.4⋅10^4 SDSS spiral galaxies with
spectra was examined, and compared to the distribution of∼ 3.3⋅ 10 4 ∼3.3⋅10^4 Pan …

Analysis of spin directions of galaxies in the DESI Legacy Survey

L Shamir - Monthly Notices of the Royal Astronomical Society, 2022 - academic.oup.com
ABSTRACT The DESI Legacy Survey is a digital sky survey with a large footprint compared
to other Earth-based surveys, covering both the Northern and Southern hemispheres. This …

Asymmetry in galaxy spin directions—Analysis of data from DES and comparison to four other sky surveys

L Shamir - Universe, 2022 - mdpi.com
The paper shows an analysis of the large-scale distribution of galaxy spin directions of
739,286 galaxies imaged by DES. The distribution of the spin directions of the galaxies …

Asymmetry between galaxy apparent magnitudes shows a possible tension between physical properties of galaxies and their rotational velocity

D McAdam, L Shamir - Symmetry, 2023 - mdpi.com
Despite over a century of research, the physics of galaxy rotation is not yet fully understood,
and there is a clear discrepancy between the observed mass of galaxies and their rotational …

Large-scale asymmetry in the distribution of galaxy spin directions—Analysis and reproduction

L Shamir - Symmetry, 2023 - mdpi.com
Recent independent observations using several different telescope systems and analysis
methods have provided evidence of parity violation between the numbers of galaxies that …

Primordial gravitational waves from galaxy intrinsic alignments

M Biagetti, G Orlando - Journal of Cosmology and Astroparticle …, 2020 - iopscience.iop.org
Galaxy shapes have been observed to align with external tidal fields generated by the large-
scale structures of the Universe. While the main source for these tidal fields is provided by …

Using 3D and 2D analysis for analyzing large-scale asymmetry in galaxy spin directions

L Shamir - Publications of the Astronomical Society of Japan, 2022 - academic.oup.com
The nature of galaxy spin is still not fully known. Iye, Yagi, and Fukumoto (2021, AJ, 907,
123) applied a 3D analysis to a dataset of bright SDSS galaxies that was used in the past for …