6 papers
Implications of low neutron star merger rates for gamma-ray bursts, r-process production and Galactic double neutron stars
Maya Fishbach, Alexander P. Ji, Wen-fai Fong +4
The first multimessenger discovery of a binary neutron star (BNS) merger, GW170817, proved that such mergers can source short gamma-ray bursts (SGRBs) and produce r-process element…
Scylla at APOGEE: The Impact of Starbursts on the Chemical Evolution of the Magellanic Clouds
Ivanna Escala, Kristen B. W. McQuinn, Sten Hasselquist +11
Owing to their proximity to the Milky Way, the Large and Small Magellanic Clouds (L/SMC) uniquely probe the evolution of low-mass galaxies undergoing mutual interactions. In this w…
Quantifying Element Importance for Mass Recovery from Population III Supernova Yield Fits
Zhongyuan Zhang, Alexander P Ji, Vinicius M Placco +1
Massive Population III stars are currently not observed, but their initial mass function (IMF) can be inferred through stellar archaeology: fitting core-collapse supernova yield mo…
EDGE-INFERNO: How chemical enrichment assumptions impact the individual stars of a simulated ultra-faint dwarf galaxy
Eric P. Andersson, Martin P. Rey, Robert M. Yates +6
The chemical abundances of stars in galaxies are a fossil record of the star formation and stellar evolution processes that regulate galaxy formation, including the stellar initial…
MEGATRON: how the first stars create an iron metallicity plateau in the smallest dwarf galaxies
Martin P. Rey, Harley Katz, Corentin Cadiou +23
We study the stellar mass-iron metallicity relation of dwarf galaxies in the new high-resolution MEGATRON cosmological radiation-hydrodynamics simulations. These simulations model…
Quantifying Bursty Star Formation in Dwarf Galaxies
Yuan-Sen Ting, Alexander P. Ji
Dwarf galaxy star formation histories are theoretically expected to be bursty, potentially leaving distinct imprints on their chemical evolution. We propose that episodic starburst…