69 citations · 264 across the 14 of their papers we have counts for
15 papers
Constraints on the r-process Delay Time from Dwarf Spheroidal Galaxies
Lauren E. Henderson, Evan N. Kirby, Mithi A. C. de los Reyes +1
The ancient stellar populations and simple structure of the local dwarf spheroidal galaxies (dSphs) make them excellent laboratories for studying the chemical evolution of the earl…
Morphologies of SAGAbg low-mass galaxies in Legacy Survey multi-band imaging: dependence on stellar masses, star-formation rates and low-redshift evolution
Joy Bhattacharyya, Guinevere Herron, Yasmeen Asali +4
The optical morphologies of low-mass galaxies can be used to directly trace their assembly and constrain models of galaxy evolution. We select a sample of 6211 low-mass ($7\lesssim…
Trends with Mass for Dwarf Galaxies from the Marvelous Massive Dwarfs Suite
Dilys Ruan, Alyson M. Brooks, Leonardo A. Barba +7
Galaxy formation scenarios can be interpreted through galaxy morphology and the level of rotational versus pressure support, quantified through the ratio of a galaxy's rotation spe…
Neutron-capture Element Abundances of 491 Stars in Milky Way Dwarf Satellite Galaxies from Medium-Resolution Spectra
Lauren E. Henderson, Evan N. Kirby, Mithi A. C. de los Reyes +2
The chemical compositions of evolved stars in Local Group dwarf spheroidal galaxies (dSphs) provide insight into the galaxy's past star formation and nucleosynthesis. Neutron-captu…
Metals in Star-Forming Galaxies with KCWI. I. Methodology and First Results on the Abundances of Iron, Magnesium, and Oxygen
Zhuyun Zhuang, Evan N. Kirby, Charles C. Steidel +6
Understanding the chemical enrichment of different elements is crucial to gaining a complete picture of galaxy chemical evolution. In this study, we present a new sample of 46 low-…
The Stellar Kinematics of Void Dwarf Galaxies Using KCWI
Mithi A. C. de los Reyes, Evan N. Kirby, Zhuyun Zhuang +3
Dwarf galaxies located in extremely under-dense cosmic voids are excellent test-beds for disentangling the effects of large-scale environment on galaxy formation and evolution. We…
High-Resolution Chemical Abundances of the Nyx Stream
Shuyu Wang, Lina Necib, Alexander P. Ji +5
Nyx is a nearby, prograde, and high-eccentricity stellar stream physically contained in the thick disk but with an unknown origin. Nyx could be the remnant of a disrupted dwarf gal…
Simultaneous Constraints on the Star Formation History and Nucleosynthesis of Sculptor dSph
Mithi A. C. de los Reyes, Evan N. Kirby, Alexander P. Ji +1
We demonstrate that using up to seven stellar abundance ratios can place observational constraints on the star formation histories (SFHs) of Local Group dSphs, using the Sculptor d…
NGC 147 Corroborates the Break in the Stellar Mass-Stellar Metallicity Relation for Galaxies
Zhuyun Zhuang, Evan N. Kirby, Nicha Leethochawalit +1
The stellar mass-stellar metallicity relation (MZR) is an essential approach to probe the chemical evolution of galaxies. It reflects the balance between galactic feedback and grav…
Manganese Indicates a Transition from Sub- to Near-Chandrasekhar Type Ia Supernovae in Dwarf Galaxies
Mithi A. C. de los Reyes, Evan N. Kirby, Ivo R. Seitenzahl +1
Manganese (Mn) abundances are sensitive probes of the progenitors of Type Ia supernovae (SNe). In this work, we present a catalog of manganese abundances in dwarf spheroidal satell…
The Metal Abundances across Cosmic Time () Survey. III -- The relationship between stellar mass and star formation rate in extremely low-mass galaxies
Kaitlyn Shin, Chun Ly, Matthew A. Malkan +3
Extragalactic studies have demonstrated there is a moderately tight (0.3 dex) relationship between galaxy stellar mass () and star formation rate (SFR) that hol…
Evidence for Sub-Chandrasekhar Type Ia Supernovae from Stellar Abundances in Dwarf Galaxies
Evan N. Kirby, Justin L. Xie, Rachel Guo +6
There is no consensus on the progenitors of Type Ia supernovae (SNe Ia) despite their importance for cosmology and chemical evolution. We address this question by using our previou…
The effect upon neutrinos of core-collapse supernova accretion phase turbulence
James P. Kneller, Mithi de los Reyes
During the accretion phase of a core-collapse supernovae, large amplitude turbulence is generated by the combination of the standing accretion shock instability and convection driv…
The Metal Abundances across Cosmic Time () Survey. I. Optical Spectroscopy in the Subaru Deep Field
Chun Ly, Sangeeta Malhotra, Matthew A. Malkan +4
Deep rest-frame optical spectroscopy is critical for characterizing and understanding the physical conditions and properties of the ionized gas in galaxies. Here, we present a new…
The Relationship between Stellar Mass, Gas Metallicity, and Star Formation Rate for Halpha-selected Galaxies at z~0.8 from the NewHalpha Survey
Mithi A. de los Reyes, Chun Ly, Janice C. Lee +8
Using a sample of 299 Ha-selected galaxies at z~0.8, we study the relationship between galaxy stellar mass, gas-phase metallicity, and star formation rate (SFR), and compare to pre…