activity
20192025
most citedPHANGS-JWST First Results: Variations in PAH Fraction as a Function of ISM Phase and Metallicity

50 citations · 125 across the 13 of their papers we have counts for

collaborators

13 papers

astro-ph.GA2025

The Interstellar Medium in I Zw 18 seen with JWST/MIRI: II. Warm Molecular Hydrogen and Warm Dust

L. K. Hunt, B. T. Draine, M. G. Navarro +16

We present JWST/MIRI spectra from the Medium-Resolution Spectrometer of IZw18, a nearby dwarf galaxy with a metallicity of % Solar. Here, we investigate warm molecular hydr…

astro-ph.GA2025★ 2 cited

Temperature based radial metallicity gradients in nearby galaxies

K. Kreckel, R. J. Rickards Vaught, O. V. Egorov +14

Gas-phase abundances provide insights into the baryon cycle, with radial gradients and 2D metallicity distributions tracking how metals build up and redistribute within galaxy disk…

astro-ph.GA2025

The Interstellar Medium in I Zw 18 seen with JWST/MIRI: III. Spatially Resolved Three Ionization State Oxygen Abundance

Ryan J. Rickards Vaught, Leslie K. Hunt, Alessandra Aloisi +14

We present observations of the nearby extremely metal-poor galaxy I Zw 18 using the Keck Cosmic Web Imager (KCWI) and the JWST Mid-InfraRed Instrument (MIRI) Integral Field Spectro…

astro-ph.GA2024★ 1 cited

Joint Optical and Infrared Observations of N and O Reveal the Dust-Obscured Gas in Haro 3

Yuguang Chen, Tucker Jones, Ryan L. Sanders +22

Accurate chemical compositions of star-forming regions are a critical diagnostic tool to characterize the star formation history and gas flows which regulate galaxy formation. Howe…

astro-ph.GA2024

DUVET: Resolved direct metallicity measurements in the outflow of starburst galaxy NGC 1569

Magdalena J. Hamel-Bravo, Deanne B. Fisher, Danielle Berg +15

We present the results of direct-method metallicity measurements in the disk and outflow of the low-metallicity starburst galaxy NGC 1569. We use Keck Cosmic Web Imager observation…

astro-ph.GA2024★ 6 cited

DUVET: sub-kiloparsec resolved star formation driven outflows in a sample of local starbursting disk galaxies

Bronwyn Reichardt Chu, Deanne B. Fisher, John Chisholm +13

We measure resolved (kiloparsec-scale) outflow properties in a sample of 10 starburst galaxies from the DUVET (Deep near-UV observations of Entrained gas in Turbulent galaxies) sam…

astro-ph.GA2023★ 18 cited

An emission map of the disk-circumgalactic medium transition in starburst IRAS 08339+6517

Nikole M. Nielsen, Deanne B. Fisher, Glenn G. Kacprzak +5

Most of a galaxy's mass is located out to hundreds of kiloparsecs beyond its stellar component. This diffuse reservoir of gas, the circumgalactic medium (CGM), acts as the interfac…

astro-ph.GA2023

Investigating the Drivers of Electron Temperature Variations in HII Regions with Keck-KCWI and VLT-MUSE

Ryan J. Rickards Vaught, Karin M. Sandstrom, Francesco Belfiore +12

HII region electron temperatures are a critical ingredient in metallicity determinations and recent observations reveal systematic variations in the temperatures measured using dif…

astro-ph.GA2023

DUVET Survey: Mapping Outflows in the Metal-Poor Starburst Mrk 1486

Daniel K. McPherson, Deanne B. Fisher, Nikole M. Nielsen +11

We present a method to characterize star-formation driven outflows from edge-on galaxies and apply this method to the metal-poor starburst galaxy, Mrk 1486. Our method uses the dis…

astro-ph.GA2023★ 50 cited

PHANGS-JWST First Results: Variations in PAH Fraction as a Function of ISM Phase and Metallicity

Jérémy Chastenet, Jessica Sutter, Karin Sandstrom +26

We present maps tracing the fraction of dust in the form of polycyclic aromatic hydrocarbons (PAHs) in IC 5332, NGC 628, NGC 1365, and NGC 7496 from JWST/MIRI observations. We trac…

astro-ph.GA2022★ 17 cited

DUVET: Spatially Resolved Observations of Star Formation Regulation via Galactic Outflows in a Starbursting Disk Galaxy

Bronwyn Reichardt Chu, Deanne B. Fisher, Alberto D. Bolatto +14

We compare 500~pc scale, resolved observations of ionised and molecular gas for the starbursting disk galaxy IRAS08339+6517, using measurements from KCWI and NOEMA. We…

astro-ph.GA2022★ 21 cited

On the Kinematics of Cold, Metal-enriched Galactic Fountain Flows in Nearby Star-forming Galaxies

Kate H. R. Rubin, Christian Juarez, Kathy L. Cooksey +7

We use medium-resolution Keck/Echellette Spectrograph and Imager spectroscopy of bright quasars to study cool gas traced by CaII 3934,3969 and NaI 5891,5897 absorption in the inter…

astro-ph.GA2019★ 10 cited

A VLT/FORS2 Narrowband Imaging Search for MgII Emission Around z ~ 0.7 Galaxies

Ryan Rickards Vaught, Kate H. R. Rubin, Fabrizio Arrigoni Battaia +2

We perform a Very Large Telescope FOcal Reducer and low dispersion Spectrograph 2 (VLT/FORS2) narrowband imaging search around 5 star-forming galaxies at redshift z=0.67-0.69 in th…