595 citations · 2k across the 29 of their papers we have counts for
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Star Formation Histories of Ultra-Faint Dwarf Galaxies: environmental differences between Magellanic and non-Magellanic satellites?
Elena Sacchi, Hannah Richstein, Nitya Kallivayalil +18
We present the color-magnitude diagrams and star formation histories (SFHs) of seven ultra-faint dwarf galaxies: Horologium 1, Hydra 2, Phoenix 2, Reticulum 2, Sagittarius 2, Trian…
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…
Elemental Abundances in M31: Gradients in the Giant Stellar Stream
Ivanna Escala, Karoline M. Gilbert, Jennifer Wojno +2
We analyze existing measurements of [Fe/H] and [/Fe] for individual red giant branch (RGB) stars in the Giant Stellar Stream (GSS) of M31 to determine whether spatial abundance…
Characterizing the Circumgalactic Medium of the Lowest-Mass Galaxies: A Case Study of IC 1613
Yong Zheng, Andrew Emerick, Mary E. Putman +3
Using 10 sightlines observed with the Hubble Space Telescope/Cosmic Origins Spectrograph, we study the circumgalactic medium (CGM) and outflows of IC1613, which is a low-mass ($M_*…
NGC 6822 as a probe of dwarf galactic evolution
Brent Belland, Evan Kirby, Michael Boylan-Kolchin +1
NGC 6822 is the closest isolated dwarf irregular galaxy to the Milky Way. Its proximity and stellar mass (, large for a dwarf galaxy) allow for a detailed study of it…
Elemental Abundances in M31: Properties of the Inner Stellar Halo
Ivanna Escala, Evan N. Kirby, Karoline M. Gilbert +3
We present measurements of [Fe/H] and [/Fe] for 128 individual red giant branch stars (RGB) in the stellar halo of M31, including its Giant Stellar Stream (GSS), obtained using…