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Exploring the epoch of hydrogen reionization using FRBs
Paz Beniamini, Pawan Kumar, Xiangcheng Ma +1
We describe three different methods for exploring the hydrogen reionization epoch using fast radio bursts (FRBs) and provide arguments for the existence of FRBs at high redshift (z…
A model for the formation of stellar associations and clusters from giant molecular clouds
Michael Y. Grudić, J. M. Diederik Kruijssen, Claude-André Faucher-Giguère +4
We present a large suite of MHD simulations of turbulent, star-forming giant molecular clouds(GMCs) with stellar feedback, extending previous work by simulating 10 different random…
Gas-phase metallicity gradients of TNG50 star-forming galaxies
Z. S. Hemler, Paul Torrey, Jia Qi +8
We present the radial gas-phase, mass-weighted metallicity profiles and gradients of the TNG50 star-forming galaxy population measured at redshifts 0--3. We investigate the re…
Virialization of the inner CGM in the FIRE simulations and implications for galaxy discs, star formation and feedback
Jonathan Stern, Claude-André Faucher-Giguère, Drummond Fielding +13
We use the FIRE-2 cosmological simulations to study the formation of a quasi-static, virial-temperature gas phase in the circumgalactic medium (CGM) at redshifts 0<z<5, and how the…
The contribution of globular clusters to cosmic reionization
Xiangcheng Ma, Eliot Quataert, Andrew Wetzel +2
We study the escape fraction of ionizing photons (f_esc) in two cosmological zoom-in simulations of galaxies in the reionization era with halo mass M_halo~10^10 and 10^11 M_sun (st…
The Origin and Evolution of Lyman-alpha Blobs in Cosmological Galaxy Formation Simulations
Benjamin Kimock, Desika Narayanan, Aaron Smith +8
High-redshift Lyman-alpha blobs (LABs) are an enigmatic class of objects that have been the subject of numerous observational and theoretical investigations. It is of particular in…
No missing photons for reionization: moderate ionizing photon escape fractions from the FIRE-2 simulations
Xiangcheng Ma, Eliot Quataert, Andrew Wetzel +3
We present the escape fraction of hydrogen ionizing photons (f_esc) from a sample of 34 high-resolution cosmological zoom-in simulations of galaxies at z>5 in the Feedback in Reali…
Towards Studying Hierarchical Assembly in Real Time: A Milky Way Progenitor Galaxy at z = 2.36 under the Microscope
Tom O. Zick, Daniel R. Weisz, Bruno Ribeiro +4
We use Hubble Space Telescope (HST) imaging and near-infrared spectroscopy from Keck/MOSFIRE to study the sub-structure around the progenitor of a Milky Way-mass galaxy in the Hubb…