Matches in SemOpenAlex for { <https://semopenalex.org/work/W3100849964> ?p ?o ?g. }
- W3100849964 endingPage "84" @default.
- W3100849964 startingPage "84" @default.
- W3100849964 abstract "We use high-resolution cosmological zoom simulations with ∼200 pc resolution at z = 2 and various prescriptions for galactic outflows in order to explore the impact of winds on the morphological, dynamical, and structural properties of eight individual galaxies with halo masses ∼1011–2 × 1012 M☉ at z = 2. We present a detailed comparison to spatially and spectrally resolved Hα and other observations of z ≈ 2 galaxies. We find that simulations without winds produce massive, compact galaxies with low gas fractions, super-solar metallicities, high bulge fractions, and much of the star formation concentrated within the inner kiloparsec. Strong winds are required to maintain high gas fractions, redistribute star-forming gas over larger scales, and increase the velocity dispersion of simulated galaxies, more in agreement with the large, extended, turbulent disks typical of high-redshift star-forming galaxies. Winds also suppress early star formation to produce high-redshift cosmic star formation efficiencies in better agreement with observations. Sizes, rotation velocities, and velocity dispersions all scale with stellar mass in accord with observations. Our simulations produce a diversity of morphological characteristics—among our three most massive galaxies, we find a quiescent grand-design spiral, a very compact star-forming galaxy, and a clumpy disk undergoing a minor merger; the clumps are evident in Hα but not in the stars. Rotation curves are generally slowly rising, particularly when calculated using azimuthal velocities rather than enclosed mass. Our results are broadly resolution-converged. These results show that cosmological simulations including outflows can produce disk galaxies similar to those observed during the peak epoch of cosmic galaxy growth." @default.
- W3100849964 created "2020-11-23" @default.
- W3100849964 creator A5008589829 @default.
- W3100849964 creator A5014522902 @default.
- W3100849964 creator A5044467709 @default.
- W3100849964 creator A5074955362 @default.
- W3100849964 date "2014-01-31" @default.
- W3100849964 modified "2023-09-25" @default.
- W3100849964 title "COSMOLOGICAL ZOOM SIMULATIONS OF<i>z</i>= 2 GALAXIES: THE IMPACT OF GALACTIC OUTFLOWS" @default.
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