T. Jones

The AURORA Survey: Determining the Production Mechanism for OI $λ 8449$ 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 $1.3 < z < 4.8$ in the AURORA survey to investigate the origin of the permitted OI $λ 8449$ emission feature.…

MSA-3D: A Diversity of Dust Attenuation Profiles Across the Epoch of Thin Disk Emergence

Ivana Barišić, Tucker Jones, Naveen Reddy +13

We present spatially resolved measurements of dust attenuation and star formation in 18 main-sequence star-forming galaxies at z $\sim$ 1 from the MSA-3D survey, obtained by mapping…

MSA-3D: Rotation Curves and Dark Matter Fractions at z~0.5-1.7 with JWST/NIRSpec

Juan M. Espejo Salcedo, Danail Obreschkow, Karl Glazebrook +17

We present rotation curves and inner mass distributions for 30 star-forming galaxies at $0.5 < z < 1.7$ , observed with JWST/NIRSpec as part of the MSA-3D Cycle 1 survey. Combining spat…

astro-ph.GA2026★ 2 cited

Revisiting the mass metallicity relation and the fundamental metallicity relation of dwarf galaxies at cosmic noon with NIRISS

Xianlong He, Zihao Li, Xin Wang +6

We extend the stellar-mass gas-phase metallicity relation (MZR) at $z = 1.1 - 3.4$ down to the extremely low-mass regime using 183 galaxies with $lo g (M_{*} / M_{⊙}) = 6.3 - 10.2$ , based…

Most Strong Lensing Deflectors in the AGEL Survey Are in Group and Cluster Environments

William J. Gottemoller, Nandini Sahu, Rodrigo Cordova-Rosado +11

The environments of deflectors in strong lensing systems affect our ability to test cosmological models and constrain evolutionary properties of galaxies. Here we measure the defle…

Consistent Gas-Phase Temperatures and Metallicities from UV and Optical Nebular Emission: A Reliable Foundation from z=0 to Cosmic Dawn

Erin Huntzinger, Yuguang Chen, Tucker Jones +6

The rest-frame UV spectra of star-forming galaxies are increasingly important as they become one of the primary windows to probe the physical properties of cosmic dawn (z>8) galaxi…

astro-ph.CO2026★ 1 cited

The Carousel Lens II: Cosmological Constraints with GIGA-Lens

Felipe Urcelay, Xiaosheng Huang, William Sheu +28

The nature of dark matter and dark energy are among the central questions in cosmology. Strong gravitational lenses with multiple source planes provide a geometric probe of cosmolo…

Multi-band Reconstruction of Sixteen Gravitational Lens Systems using PISCO data

Huimin Qu, Daniel J. Ballard, Geraint F. Lewis +12

Next-generation surveys such as the Euclid survey, the Legacy Survey of Space and Time (LSST), and the China Space Station Telescope (CSST) survey are expected to discover ~10^5 ga…

MSA-3D: Connecting the Chemical and Kinematic Structures of Galaxies at $z \sim 1$

Mengting Ju, Xin Wang, Tucker Jones +12

We investigate the connection between ionized gas kinematics and gas-phase metallicity gradients in 21 star-forming galaxies at $0.5 < z < 1.7$ from the MSA-3D survey, using spatia…

The Carousel Lens I: A Spectroscopic Survey of the Carousel Lens Field

Jackson H. O'Donnell, Demetrius Y. Williams, Tesla E. Jeltema +18

We present a spectroscopic survey of field galaxies and lensed sources in the vicinity of the strong lensing galaxy cluster known as the Carousel lens at z=0.49. Using both Gemini/…

The AURORA Survey: The Mass -- Metallicity and Fundamental Metallicity Relations at $z \sim 2.3$ Based Purely on Direct $T_{e}$ 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 $1.38 \leq z \leq 3.5$ (median $z = 2.28$ ). The…

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 $z = 2 - 3.5$ from the Assembly of Ultradeep Rest-Optical Observations Revealing Astrophysics (AURORA) program.…

Testing the Stellar Feedback-driven Breathing Mode in Low-mass Galaxies with Gas Kinematics

Yifei Luo, Joseph Wick, Alexie Leauthaud +7

Hydrodynamic simulations have proposed that stellar feedback and bursty star-formation can produce dark matter cores in low-mass galaxies. A key prediction is that feedback-driven…

MSA-3D: Uncovering Weak AGNs and Resolved Outflows in Disguise in $z \sim 1$ Star-Forming Galaxies

Namrata Roy, Alaina Henry, Tucker Jones +11

We present spatially resolved rest-optical spectroscopy of 38 star-forming galaxies at 0.5 < z < 1.7 from the JWST/NIRSpec MSA-3D survey, which uses slit-stepping to build IFU-like…

Consistent gas-phase C/O abundances from UV and optical emission lines: a robust scale for chemical evolution across cosmic time

Paige M. Kelly, Tucker Jones, Yuguang Chen +5

The carbon to oxygen (C/O) abundance ratio is a valuable tracer of star formation history, as C and O enrichment occurs on different timescales. However, measurements based on ultr…

astro-ph.CO2025★ 5 cited

Constraining Cosmology with Double-source-plane Strong Gravitational Lenses from the AGEL Survey

Duncan J. Bowden, Nandini Sahu, Anowar J. Shajib +17

Double-source-plane strong gravitational lenses (DSPLs), with two sources at different redshifts, are independent cosmological probes of the dark energy equation of state parameter…

astro-ph.GA2025★ 2 cited

A Uniform Analysis of Gas-phase Metallicity Evolution with 1-3 Gyr Time Sampling over the Past 12 Billion Years

Shweta Jain, Ryan L. Sanders, Ali Ahmad Khostovan +6

We present a systematic investigation of the evolution of the mass-metallicity relation (MZR) and fundamental metallicity relation (FMR) using uniform metallicity diagnostics acros…

astro-ph.GA2025★ 4 cited

The AURORA Survey: High-Redshift Empirical Metallicity Calibrations from Electron Temperature Measurements at z=2-10

Ryan L. Sanders, Alice E. Shapley, Michael W. Topping +29

We present detections of auroral emission lines of [OIII], [OII], [SIII], and [SII] in deep JWST/NIRSpec spectroscopy for 41 star-forming galaxies at $z = 1.4 - 7.2$ from the AURORA su…

Spatially resolved gas-phase metallicity at z~2-3 with JWST/NIRISS

Ayan Acharyya, Peter J. Watson, Benedetta Vulcani +24

Spatially resolved gas-phase metallicity maps are a crucial element in understanding the chemical evolution of galaxies. We present spatially resolved metallicity maps obtained fro…

The AURORA Survey: Robust Helium Abundances at High Redshift Reveal A Subpopulation of Helium-Enhanced Galaxies in the Early Universe

Danielle A. Berg, Ryan L. Sanders, Alice E. Shapley +16

We present the first robust helium (He) abundance measurements in star-forming galaxies at redshifts $1.6 ≲ z ≲ 3.3$ using deep, moderate-resolution JWST/NIRSpec spectr…

MOSDEF-3D: Keck/OSIRIS Maps of the Ionized ISM in $z \sim 2$ Galaxies

Natalie Lam, Alice E. Shapley, Ryan L. Sanders +8

We present spatially-resolved rest-frame optical emission line maps of four galaxies at $z \sim 2$ observed with Keck/OSIRIS to study the physical conditions of the ISM at Cosmic N…

The AURORA Survey: Tracing Galactic Outflows at $z ≳ 2.5$ with JWST/NIRSpec NUV Absorption Lines

Emily Kehoe, Alice E. Shapley, Ryan L. Sanders +13

We probe galactic-scale outflows in star-forming galaxies at $z ≳ 2.5$ drawn from the \textit{JWST}/NIRSpec AURORA program. For the first time, we directly compare outflow prop…

astro-ph.GA2025★ 2 cited

JWST & ALMA Joint Analysis with [OII] $λλ$ 3726,3729, [OIII] $λ$ 4363, [OIII]88 $μ$ m, and [OIII]52 $μ$ m: Multi-Zone Evolution of Electron Densities at $z \sim 0 - 14$ and Its Impact on Metallicity Measurements

Yuichi Harikane, Ryan L. Sanders, Richard Ellis +8

We present a JWST and ALMA detailed study of the ISM properties of high-redshift galaxies. Our JWST/NIRSpec IFU spectroscopy targeting three galaxies at $z = 6 - 7$ detects key rest-fr…