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Conference Papers Year : 2016

How do galaxies build up their spin in the cosmic web?

Abstract

Using the Horizon-AGN simulation we find a mass dependent spin orientation trend for galaxies: the spin of low-mass, rotation-dominated, blue, star-forming galaxies are preferentially aligned with their closest filament, whereas high-mass, velocity dispersion- supported, red quiescent galaxies tend to possess a spin perpendicular to these filaments. We explore the physical mechanisms driving galactic spin swings and quantify how much mergers and smooth accretion re-orient them relative to their host filaments.

Dates and versions

insu-04054640 , version 1 (31-03-2023)

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Charlotte Welker, Yohan Dubois, Christophe Pichon, Julien Devriendt, Sebastien Peirani. How do galaxies build up their spin in the cosmic web?. The Zeldovich Universe: Genesis and Growth of the Cosmic Web, Proceedings of the International Astronomical Union, IAU Symposium, 2016, à renseigner, Unknown Region. pp.433-436, ⟨10.1017/S1743921316010310⟩. ⟨insu-04054640⟩
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