Disc settling and dynamical heating: histories of Milky Way-mass stellar discs across cosmic time in the FIRE simulations

ABSTRACT We study the kinematics of stars both at their formation and today within 14 Milky Way (MW)-mass galaxies from the FIRE-2 cosmological zoom-in simulations. We quantify the relative importance of cosmological disc settling and post-formation dynamical heating. We identify three eras: a Pre-D...

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Veröffentlicht in:	Monthly notices of the Royal Astronomical Society 2024-01, Vol.527 (3), p.6926-6949
Hauptverfasser:	McCluskey, Fiona, Wetzel, Andrew, Loebman, Sarah R, Moreno, Jorge, Faucher-Giguère, Claude-André, Hopkins, Philip F
Format:	Artikel
Sprache:	eng
Schlagworte:	Cosmic rays Galactic rotation Heating Kinematics Orbits Settling Spiral galaxies Stars & galaxies Stellar age Stellar evolution Stellar kinematics Stellar mass
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