activity
20232026
most citedNGDEEP: The Star Formation and Ionization Properties of Galaxies at

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

collaborators

13 papers

astro-ph.GA2026

Quiescent Galaxies at from CAPERS spectroscopy and their Number densities

Lu Shen, Weida Hu, Casey Papovich +28

Recent JWST observations have revealed an overabundance of quiescent galaxies at high redshift. Photometric methods, such as photometry-derived sSFRs, colors, and synthetic $…

astro-ph.GA2026

C3PO: A Lyα Emitting Galaxy at

Weida Hu, Casey Papovich, Taylor A. Hutchison +6

We present deep, hr, JWST NIRSpec G140M and G395M observations of a previously known galaxy C3PO-8447 at . Our new NIRSpec data from the Carbon-3 plus Oxygen (C3PO…

astro-ph.GA2026

Massive Galaxies Form Early and Gray: Stellar Assembly and Dust Attenuation at from CAPERS

Katherine Chworowsky, Steven L. Finkelstein, Anthony J. Taylor +27

The stellar mass assembly of massive galaxies in the first few billion years of cosmic history remains a central challenge in galaxy formation. Galaxies with $M_\star \gtrsim 10^{1…

astro-ph.GA2026

Using Ly Transmitted Spectrum to Probe IGM Transmission and Identify Ionized Structures in Cosmic Reionization

Weida Hu, Casey Papovich, Lu Shen +16

We present a study of intergalactic medium (IGM) transmission at using high-signal-to-noise JWST/NIRSpec prism spectroscopy of 143 galaxies at from the CAPE…

astro-ph.GA2025

NGDEEP: A New Non-Parametric Measure of Local Star-Formation and Attenuation at Cosmic Noon

Grace M. Forrey, Raymond C. Simons, Jonathan R. Trump +6

We introduce a new non-parametric technique to quantify the spatially-resolved relationship between the local star-formation rate (SFR) and dust attenuation. We then apply it to 14…

astro-ph.GA2025★ 1 cited

A first look at a complete view of spatially resolved star formation at 1<z<1.8 with JWST NGDEEP+FRESCO slitless spectroscopy

Jasleen Matharu, Lu Shen, Irene Shivaei +15

[abridged] The previously inaccessible star formation tracer Pa can now be spatially resolved by JWST NIRCam slitless spectroscopy in distant galaxies up to cosmic noon. In the…

astro-ph.GA2025

Galaxies in the Epoch of Reionization Are All Bark and No Bite -- Plenty of Ionizing Photons, Low Escape Fractions

Casey Papovich, Justin W. Cole, Weida Hu +27

Early results from JWST suggest that epoch-of-reionization (EoR) galaxies produce copious ionizing photons, which, if they escape efficiently, could cause reionization to occur too…

astro-ph.GA2025★ 3 cited

Extended Enriched Gas in a Multi-Galaxy Merger at Redshift 6.7

Weida Hu, Casey Papovich, Lu Shen +5

Recent JWST observations have uncovered high-redshift galaxies characterized by multiple star-forming clumps, many of which appear to be undergoing mergers. Such mergers, especiall…

astro-ph.GA2024★ 8 cited

NGDEEP: The Star Formation and Ionization Properties of Galaxies at

Lu Shen, Casey Papovich, Jasleen Matharu +23

We use JWST/NIRISS slitless spectroscopy from the Next Generation Deep Extragalactic Exploratory Public (NGDEEP) Survey to investigate the physical condition of star-forming galaxi…

astro-ph.GA2024

Characterizing the Average Interstellar Medium Conditions of Galaxies at 5.6-9 with UV and Optical Nebular Lines

Weida Hu, Casey Papovich, Mark Dickinson +30

Ultraviolet (UV; rest-frame A) spectra provide a wealth of diagnostics to characterize fundamental galaxy properties, such as their chemical enrichment, the nature…

astro-ph.GA2023

The Next Generation Deep Extragalactic Exploratory Public Near-Infrared Slitless Survey Epoch 1 (NGDEEP-NISS1): Extra-Galactic Star-formation and Active Galactic Nuclei at 0.5 < z < 3.6

Nor Pirzkal, Barry Rothberg, Casey Papovich +48

The Next Generation Deep Extragalactic Exploratory Public (NGDEEP) survey program was designed specifically to include Near Infrared Slitless Spectroscopic observations (NGDEEP-NIS…

astro-ph.GA2023

CEERS: 7.7 m PAH Star Formation Rate Calibration with JWST MIRI

Kaila Ronayne, Casey Papovich, Guang Yang +33

We test the relationship between UV-derived star formation rates (SFRs) and the 7.7 m polycyclic aromatic hydrocarbon (PAH) luminosities from the integrated emission of galaxies…

astro-ph.GA2023★ 1 cited

NGDEEP Epoch 1: Spatially Resolved H Observations of Disk and Bulge Growth in Star-Forming Galaxies at 0.6-2.2 from JWST NIRISS Slitless Spectroscopy

Lu Shen, Casey Papovich, Jasleen Matharu +21

We study the H equivalent width, EW(H), maps of 19 galaxies at in the Hubble Ultra Deep Field (HUDF) derived from NIRISS slitless spectroscopy as part of the…