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The galaxy-halo size relation of low-mass galaxies in FIRE
Eric Rohr, Robert Feldmann, James Bullock +7
Galaxy sizes correlate closely with the sizes of their parent dark matter haloes, suggesting a link between halo formation and galaxy growth. However, the precise nature of this re…
The impact of cosmic rays on dynamical balance and disk-halo interaction in Lstar disk galaxies
T. K. Chan, Dusan Keres, Alexander B. Gurvich +4
Cosmic rays (CRs) are an important component in the interstellar medium (ISM), but their effect on the dynamics of the disk-halo interface (< 10 kpc from the disk) is still unclear…
First Predicted Cosmic Ray Spectra, Primary-to-Secondary Ratios, and Ionization Rates from MHD Galaxy Formation Simulations
Philip F. Hopkins, Iryna S. Butsky, Georgia V. Panopoulou +4
We present the first simulations evolving resolved spectra of cosmic rays (CRs) from MeV-TeV energies (including electrons, positrons, (anti)protons, and heavier nuclei), in live k…
Gas infall and radial transport in cosmological simulations of Milky Way-mass disks
Cameron Trapp, Dusan Keres, T. K. Chan +7
Observations indicate that a continuous supply of gas is needed to maintain observed star formation rates in large, disky galaxies. To fuel star formation, gas must reach the inner…
Neutral CGM as damped Lyα absorbers at high redshift
Jonathan Stern, Amiel Sternberg, Claude-André Faucher-Giguère +8
Recent searches for the hosts of high-redshift () damped Ly absorbers (DLAs) have detected bright galaxies at distances of tens of kpc from the DLA. Using the FIRE-2 c…
The bursty origin of the Milky Way thick disc
Sijie Yu, James S. Bullock, Courtney Klein +11
We investigate thin and thick stellar disc formation in Milky-Way-mass galaxies using twelve FIRE-2 cosmological zoom-in simulations. All simulated galaxies experience an early per…