articleMonthly Notices of the Royal Astronomical SocietyJan 12, 2017BRONZE OA

The Auriga Project: the properties and formation mechanisms of disc galaxies across cosmic time

RJRobert J. J. GrandFAFacundo A. GómezFMFederico MarinacciRPRüdiger PakmorVSVolker Springel

Heidelberg University · Heidelberg Institute for Theoretical Studies · +4 more institutions

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Abstract

We introduce a suite of 30 cosmological magneto-hydrodynamical zoom simulations of the formation of galaxies in isolated Milky Way mass dark haloes. These were carried out with the moving mesh code AREPO, together with a comprehensive model for galaxy formation physics, including active galactic nuclei (AGN) feedback and magnetic fields, which produces realistic galaxy populations in large cosmological simulations. We demonstrate that our simulations reproduce a wide range of present-day observables, in particular, two-component disc-dominated galaxies with appropriate stellar masses, sizes, rotation curves, star formation rates and metallicities. We investigate the driving mechanisms that set present-day disc…

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Topics & keywords

Topics
Keywords
  • Physics
  • Astrophysics
  • Galaxy
  • Galaxy formation and evolution
  • Angular momentum
  • Star formation
  • Dark matter
  • Bulge
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