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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.
Publication status:
Published
Peer review status:
Peer reviewed
Version:
Accepted manuscript

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Publisher copy:
10.1017/S1743921316010310

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Institution:
University of Oxford
Department:
Oxford, MPLS, Physics, Astrophysics
Peirani, S More by this author
Publisher:
Cambridge University Press (CUP) Publisher's website
Journal:
Proceedings of the International Astronomical Union Journal website
Volume:
11
Issue:
S308
Pages:
433-436
Publication date:
2016-10-12
DOI:
EISSN:
1743-9221
ISSN:
1743-9213
URN:
uuid:bb78c564-cb27-4f41-9829-6b24dfff165b
Source identifiers:
487375
Local pid:
pubs:487375

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