activity
20242026
most citedA spectroscopic analysis of the ionizing photon production efficiency in JADES and CEERS: implications for the ionizing photon budget

5 citations · 10 across the 14 of their papers we have counts for

collaborators

17 papers

astro-ph.GA2026

Precise C-N-O Abundances of Individual Galaxies in the First Billion Years from Ultra-Deep, Rest-UV-to-Optical JWST Spectroscopy

Raunaq Singh Rai, Guido Roberts-Borsani, Ryan Sanders +8

We present ultra-deep JWST/NIRSpec spectroscopy of nine star-forming galaxies at in the GOODS-N field, drawn from the Origins of Metal Enrichment in Galaxie…

astro-ph.GA2026

The AURORA Survey: Determining the Production Mechanism for OI Emission in Star-forming Galaxies at Cosmic Noon

Leonardo Clarke, Alice E. Shapley, Zhiwei Shao +11

We analyze deep JWST/NIRSpec observations of 58 star-forming galaxies at in the AURORA survey to investigate the origin of the permitted OI emission feature.…

astro-ph.GA2026

Unprecedented Constraints on Gas Flows at High Redshift Using Deep JWST/NIRSpec Observations from the LyC22, EXCELS, and AURORA Surveys

Emily Kehoe, Alice E. Shapley, Adam C. Carnall +25

We investigate how low-ionization gas flows in typical star-forming galaxies at depend on galaxy intrinsic properties and viewing angle. For this analysis we use JWST/NIRS…

astro-ph.GA2026

The JADES Mass-Metallicity and Fundamental Metallicity Relations at Using New High-Redshift Metallicity Calibrations

Natalie Lam, Leonardo Clarke, Alice E. Shapley +5

We present measurements of the mass-metallicity relation (MZR) and fundamental metallicity relation (FMR) at using stacked JWST/NIRSpec spectra of 601 star-forming gala…

astro-ph.GA2026

The AURORA Survey: Multiple Balmer and Paschen Emission Lines for Individual Star-forming Galaxies at z=1.5-4.4. II. Implications for Nebular Dust Corrections, Nebular SFRs, and Differential Reddening

Naveen A. Reddy, Alice E. Shapley, Ryan L. Sanders +10

We discuss the implications of the nebular dust attenuation curves derived for 24 galaxies at z=1.5-4.4 with multiple detections of HI Balmer and Paschen recombination emission lin…

astro-ph.GA2026

Balmer Decrements and Nebular-Stellar Reddening in JADES Galaxies at

Shreya Karthikeyan, Leonardo Clarke, Alice E. Shapley +5

We aim to characterize nebular and stellar reddening in star-forming galaxies as a function of global galaxy properties (stellar mass, SFR, metallicity) at . We also…

astro-ph.GA2026★ 1 cited

The ALPINE-CRISTAL-JWST Survey: Gas-phase abundance gradients of main sequence star-forming galaxies and their kinematics at

Lilian L. Lee, Natascha M. Förster Schreiber, Seiji Fujimoto +50

We present gas-phase radial metallicity profiles for 20 main-sequence galaxies at , primarily based on JWST NIRSpec IFU observations obtained as part of the JWST-ALPINE-CRIS…

astro-ph.GA2026★ 1 cited

The JWST EXCELS survey: The ages and abundances of massive quiescent galaxies show that downsizing was already in place by

Ho-Hin Leung, Adam C. Carnall, Elizabeth Taylor +21

We present deep, medium-resolution m JWST/NIRSpec spectroscopy for 14 quiescent galaxies at with , obtained as part of t…

astro-ph.GA2026★ 1 cited

Dynamical properties and star formation history of a low-mass quenched galaxy at Cosmic Noon

K. Ito, F. Valentino, W. M. Baker +12

We present the spectroscopic confirmation and in-depth analysis of AURORA-LQG1, a low-mass quiescent galaxy at with observed with…

astro-ph.GA2026

Emission-line Diagnostics at : A Probe of the Ionizing Spectrum and Enhancement Beyond Cosmic Noon

Leonardo Clarke, Natalie Lam, Alice E. Shapley +5

We analyze several key rest-optical emission-line ratios in a sample of 828 galaxies as well as composite spectra from JADES DR3 in the range . These emission-line rat…

astro-ph.GA2025★ 1 cited

The AURORA Survey: The Mass -- Metallicity and Fundamental Metallicity Relations at Based Purely on Direct Metallicities

Ali Ahmad Khostovan, Ryan L. Sanders, Alice E. Shapley +14

We present new constraints on the Mass -- Metallicity (MZR) and Fundamental Metallicity Relations (FMR) using a sample of 34 galaxies at (median ). The…

astro-ph.GA2025

The AURORA Survey: Constraining Chemical Enrichment Pathways at Cosmic Noon with Argon Abundances

Jack Foley, Alice Shapley, Ryan Sanders +11

We present argon abundances from a sample of 46 star-forming galaxies at from the Assembly of Ultradeep Rest-Optical Observations Revealing Astrophysics (AURORA) program.…

astro-ph.GA2025

The AURORA Survey: Ionizing Photon Production Efficiency with Minimal Nebular Dust Attenuation Systematics

Anthony J. Pahl, Alice Shapley, Naveen A. Reddy +11

We present ionizing photon production efficiencies () for 63 z=1.5-6.9 star-forming galaxies using precise nebular dust attenuation corrections from the JWST/AURORA su…

astro-ph.GA2025★ 1 cited

The Star-forming Main Sequence and Bursty Star-formation Histories at in JADES and AURORA

Leonardo Clarke, Alice E. Shapley, Natalie Lam +5

We analyze JWST spectroscopic and HST+JWST photometric observations of 659 star-forming galaxies at from DR3 of the JADES survey and the AURORA Cycle 1 program. We measur…

astro-ph.GA2025

Stacking PANCAKEZ: sPectroscopic Analysis with NirspeC stAcKs in the Epoch of reioniZation. Weak ISM Absorption and Implications for Ionizing Photon Escape at

Kelsey S. Glazer, Tucker Jones, Yuguang Chen +7

We present a spectral stacking analysis of galaxies at observed with the James Webb Space Telescope (JWST). We curate a sample of galaxies spanning redshifts $z_{\rm…

astro-ph.GA2025

The AURORA Survey: The Evolution of Multi-phase Electron Densities at High Redshift

Michael W. Topping, Ryan L. Sanders, Alice E. Shapley +14

We present an analysis of deep /NIRSpec spectra of star-forming galaxies at , observed as part of the AURORA survey. We infer median low-ionization el…

astro-ph.GA2024★ 5 cited

A spectroscopic analysis of the ionizing photon production efficiency in JADES and CEERS: implications for the ionizing photon budget

Anthony J. Pahl, Michael W. Topping, Alice Shapley +6

We have used a combined sample of JADES and CEERS objects in order to constrain ionizing photon production efficiency () from JWST/NIRSpec and JWST/NIRCam data. We exa…