activity
20242026
collaborators

10 papers

astro-ph.GA2026

Galaxy Metallicity Gradients in the Reionization Epoch from the FIRE-2 Simulations

Xunda Sun, Xin Wang, Fangzhou Jiang +10

We employ the high-redshift suite of FIRE-2 cosmological hydrodynamic zoom-in simulations to investigate the evolution of gas-phase metallicity radial gradients in galaxies in the…

astro-ph.GA2026

Strong Evidence for Cosmic Ray-Supported L Galaxy Halos via X-ray \& tSZ Constraints

Sam B. Ponnada, Philip F. Hopkins, Yue Samuel Lu +3

Many state-of-the-art galaxy simulations featuring traditional feedback modes have significant challenges producing enough extended soft X-ray ( keV) emission at R $\si…

astro-ph.GA2025

Constraining cosmic ray transport models using circumgalactic medium properties and observables

Yue Samuel Lu, Dušan Kereš, Philip F. Hopkins +3

Cosmic rays (CRs) are a pivotal non-thermal component of galaxy formation and evolution. However, the intricacies of CR physics, particularly how they propagate in the circumgalact…

astro-ph.HE2025

Galactic Center Gamma-Ray Emission in MHD Galaxy Formation Simulations with Full Cosmic Ray Spectra

Isabel S. Sands, Philip F. Hopkins, Sam B. Ponnada +3

The Milky Way's galactic center is a highly dynamical, crowded environment. Gamma ray observations of this region, such as the excess of GeV scale gamma rays observed by Fermi LAT,…

astro-ph.GA2025

Second public data release of the FIRE-2 cosmological zoom-in simulations of galaxy formation

Andrew Wetzel, Jenna Samuel, Pratik J. Gandhi +34

We describe the second data release (DR2) of the FIRE-2 cosmological zoom-in simulations of galaxy formation, from the Feedback In Realistic Environments (FIRE) project, available…

astro-ph.GA2025

Disks no more: the morphology of low-mass simulated galaxies in FIREbox

José A. Benavides, Laura V. Sales, Andrew Wetzel +9

We study the morphology of hundreds of simulated central galaxies in the stellar mass range \msun\, from the FIREbox cosmological volume. We demons…