Edge-on galaxies relative to the edge-on view of the Local Supercluster

Cosmological theories suggest that the angular momentum of galaxies is closely linked to the structure of the cosmic web. The Local Supercluster is the closest and most frequently studied structure in which the orientation of galaxy spins can be studied. As noted previously, the use of edge-on galaxies greatly simplifies this task by reducing the task to an analysis of the position angle distribution in the supergalactic coordinates. We reexamined this correlation using modern catalogs that allowed us to perform a more robust statistical analysis. We tested the dependence on redshift, spatial position, luminosity, and color. We find that the spins of galaxies with a stellar mass M * < 10 8.7 M ⊙ show a weak tendency to be aligned perpendicular to the plane of the Local Supercluster at the 2 σ level. Other subsamples show no statistically significant correlations.

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Publication Details

Journal
Astronomy and Astrophysics
Published
2025-05-19
DOI
https://doi.org/10.1051/0004-6361/202554906
Primary Topic
Galaxies: Formation, Evolution, Phenomena
Type
article
Field-Weighted Citation Impact
0.00

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article

Edge-on galaxies relative to the edge-on view of the Local Supercluster

Noam I. Libeskind, D. I. Makarov, P. Dolgosheeva
1 links
Astronomy and Astrophysics
Galaxies: Formation, Evolution, Phenomena
article

Edge-on galaxies relative to the edge-on view of the Local Supercluster

Noam I. Libeskind, D. I. Makarov, P. Dolgosheeva
article en

Abstract

Cosmological theories suggest that the angular momentum of galaxies is closely linked to the structure of the cosmic web. The Local Supercluster is the closest and most frequently studied structure in which the orientation of galaxy spins can be studied. As noted previously, the use of edge-on galaxies greatly simplifies this task by reducing the task to an analysis of the position angle distribution in the supergalactic coordinates. We reexamined this correlation using modern catalogs that allowed us to perform a more robust statistical analysis. We tested the dependence on redshift, spatial position, luminosity, and color. We find that the spins of galaxies with a stellar mass M * < 10 8.7 M ⊙ show a weak tendency to be aligned perpendicular to the plane of the Local Supercluster at the 2 σ level. Other subsamples show no statistically significant correlations.

Astronomy and AstrophysicsVol. 698
St Petersburg University (RU), Leibniz Institute for Astrophysics Potsdam (DE), Special Astrophysical Observatory (RU)
Russian Science Foundation
Openalex Percentile: Top 93%
Galaxies: Formation, Evolution, Phenomena
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