830 citations · 19.9k across the 288 of their papers we have counts for
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First Co-spatial Comparison of Stellar, Neutral-, and Ionized-gas Metallicities in a metal-rich galaxy: M83
Svea Hernandez, Alessandra Aloisi, Bethan L. James +14
We carry out a comparative analysis of the metallicities from the stellar, neutral-gas, and ionized-gas components in the metal-rich spiral galaxy M83. We analyze spectroscopic obs…
Improving Helium Abundance Determinations with Leo P as a Case Study
Erik Aver, Danielle A. Berg, Keith A. Olive +3
Currently, the primordial helium abundance is best estimated through spectroscopic observations of H II regions in metal-poor galaxies. However these determinations are limited by…
Mapping the Escape Fraction of Ionizing Photons Using Resolved Stars: A Much Higher Escape Fraction for NGC 4214
Yumi Choi, Julianne J. Dalcanton, Benjamin F. Williams +6
We demonstrate a new method for measuring the escape fraction of ionizing photons using Hubble Space Telescope imaging of resolved stars in NGC 4214, a local analog of high-redshif…
PHAT XX. AGB stars and other cool giants in M31 star clusters
Leo Girardi, Martha L. Boyer, L. Clifton Johnson +20
The presence of AGB stars in clusters provides key constraints for stellar models, as has been demonstrated with historical data from the Magellanic Clouds. In this work, we look f…
A Demonstration of Extremely Low Latency -ray, X-Ray & UV Follow-Up of a Millisecond Radio Transient
Aaron Tohuvavohu, Casey J. Law, Jamie A. Kennea +18
We report results of a novel high-energy follow-up observation of a potential Fast Radio Burst. The radio burst was detected by VLA/realfast and followed-up by the Neil Gehrels Swi…
CHAOS V: Recombination Line Carbon Abundances in M101
Evan D. Skillman, Danielle A. Berg, Richard W. Pogge +3
The CHAOS project is building a large database of LBT H II region spectra in nearby spiral galaxies to use direct abundances to better determine the dispersion in metallicity as a…