activity
20242026
most citedThe JWST-PRIMAL Legacy Survey. A JWST/NIRSpec reference sample for the physical properties and Lyman- absorption and emission of galaxies at

100 citations · 131 across the 16 of their papers we have counts for

collaborators

17 papers

astro-ph.GA2026

The DAWN JWST Archive: A spectroscopically-informed population study of the physical properties of galaxies at z>2

Rashmi Gottumukkala, Gabriel Brammer, Sune Toft +30

Charting the evolution of star-formation, stellar mass and dust build-up over cosmic time relies on the accurate characterisation of the stellar population properties of high redsh…

astro-ph.GA2026

The metallicities of little red dot host galaxies: LRDs are metal poor, but not pristine

G. P. Nikopoulos, D. Watson, C. L. Pollock +4

Little Red Dots (LRDs) are a population of high-z sources discovered by JWST whose compactness, broad permitted lines, strong absorption features, continuum shapes and luminosities…

astro-ph.GA2026

JWST spectroscopy of galaxies at : Damped Ly absorbers reveal efficient star formation and hidden redshift biases

Kasper E. Heintz, Clara L. Pollock, Joris Witstok +23

Recent observations with JWST have revealed a remarkable population of surprisingly luminous galaxies at redshifts . Their abundance exceed predictions from simulations and e…

astro-ph.GA2026

Chemical signatures from the first stars embedded in metal-poor gas in galaxies at cosmic dawn

Clara L. Pollock, Kasper E. Heintz, Elka Rusta +15

The first generation of stars formed from pristine, neutral hydrogen gas. The most massive of these exploded as supernovae within a few million years of their birth, producing the…

astro-ph.GA2026

A hot, nebular-dominated galaxy interacting with a pristine PopIII system uncovered by JWST

Henriette Reumert, Kasper E. Heintz, Clara L. Pollock +6

The discovery of galaxies with extremely strong nebular continuum emission at high redshifts provide novel, unique insights into the conditions under which the first super-massive…

astro-ph.GA2026

Characterising Ly damping wings at the onset of reionisation: Evidence for highly efficient star formation driven by dense, neutral gas in UV-bright galaxies at

Clara L. Pollock, Kasper E. Heintz, Joris Witstok +23

One of the major conundrums in contemporary extragalactic astrophysics is the apparent overabundance of a remarkable population of UV-bright galaxies at redshifts . We…

astro-ph.GA2026★ 1 cited

All the Massive Galaxy Overdensities during Reionization: JWST Rest-Frame Optical Selection Reveals Young, Chemically Evolved Galaxies Embedded in Dense, Neutral Gas at z > 5

Chamilla Terp, Kasper E. Heintz, Jorryt Matthee +7

The high-redshift progenitors of present-day galaxy clusters are believed to substantially contribute to the global star-formation rate density and drive the large-scale reionizati…

astro-ph.GA2025★ 1 cited

REBELS-IFU: Linking damped Lyman- absorption to [CII] emission and dust content in the EoR

Lucie E. Rowland, Kasper E. Heintz, Hiddo Algera +19

Neutral gas in galaxies during the Epoch of Reionisation regulates star formation, dust growth, and the escape of ionising photons, making it a key ingredient in understanding both…

astro-ph.GA2025★ 1 cited

Evidence for inefficient dust production in a massive, metal-rich galaxy at uncovered by JWST and ALMA

Kasper E. Heintz, Darach Watson, Francesco Valentino +17

Recent observations have revealed a remarkably rapid buildup of cosmic dust in the interstellar medium (ISM) of high redshift galaxies, with complex dust compositions and large abu…

astro-ph.GA2025

Neutral hydrogen in and around galaxies during the Epoch of Reionization

V. Gelli, C. Mason, A. Pallottini +9

JWST spectra revealing Lyman- (Ly) absorption in galaxies offer a unique probe of reionization's earliest stages. However, disentangling absorption by the increa…

astro-ph.GA2025★ 5 cited

On the origins of oxygen: ALMA and JWST characterise the multi-phase, metal-enriched, star-bursting medium within a 'normal' galaxy

Joris Witstok, Renske Smit, William M. Baker +29

The unexpectedly high abundance of galaxies at revealed by JWST has sparked a debate on the nature of early galaxies and the physical mechanisms regulating their formation…

astro-ph.GA2025★ 10 cited

Novel auroral line measurements extend the gradual offset of the FMR deep into the first Gyr of cosmic time

Clara L. Pollock, Rashmi Gottumukkala, Kasper E. Heintz +15

The mass assembly and chemical enrichment of the first galaxies provide key insights into their star-formation histories and the earliest stellar populations at cosmic dawn. Here w…

astro-ph.GA2025★ 9 cited

A Cosmic Miracle: A Remarkably Luminous Galaxy at Confirmed with JWST

Rohan P. Naidu, Pascal A. Oesch, Gabriel Brammer +43

JWST has revealed a stunning population of bright galaxies at surprisingly early epochs, , where few such sources were expected. Here we present the most distant example of t…

astro-ph.GA2025★ 2 cited

The JWST EXCELS survey: Probing strong-line diagnostics and the chemical evolution of galaxies over cosmic time using Te-metallicities

D. Scholte, F. Cullen, A. C. Carnall +13

We present an analysis of the rest-frame optical spectra of 22 [OIII]4363 detected galaxies in the redshift range (with = 4.05) from JWST/N…

astro-ph.GA2025

Dissecting the massive pristine, neutral gas reservoir of a remarkably bright galaxy at z = 14.179

Kasper E. Heintz, Clara Pollock, Joris Witstok +6

At cosmic dawn, the first stars and galaxies are believed to form from and be deeply embedded in clouds of dense, pristine gas. Here we present a study of the JWST/NIRSpec data of…

astro-ph.GA2025★ 2 cited

The JWST EXCELS survey: an extremely metal-poor galaxy at hosting an unusual population of massive stars

F. Cullen, A. C. Carnall, D. Scholte +14

We present an analysis of the rest-frame optical (Å) spectrum of a star-forming galaxy at from JWST/…

astro-ph.GA2024★ 100 cited

The JWST-PRIMAL Legacy Survey. A JWST/NIRSpec reference sample for the physical properties and Lyman- absorption and emission of galaxies at

K. E. Heintz, G. B. Brammer, D. Watson +45

One of the surprising early findings with JWST has been the discovery of a strong "roll-over" or a softening of the absorption edge of Ly in a large number of galaxies at ($z\gt…