Search Publications
The wide-field, multiplexed, spectroscopic facility WEAVE: Survey design, overview, and simulated implementation
Costantin, Luca; Miralda-Escudé, Jordi; Naylor, Tim +212 more
WEAVE, the new wide-field, massively multiplexed spectroscopic survey facility for the William Herschel Telescope, saw first light in late 2022. WEAVE comprises a new 2-deg field-of-view prime-focus corrector system, a nearly 1000-multiplex fibre positioner, 20 individually deployable 'mini' integral field units (IFUs), and a single large IFU. The…
The star-forming and ionizing properties of dwarf z 6-9 galaxies in JADES: insights on bursty star formation and ionized bubble growth
Chevallard, Jacopo; Carniani, Stefano; Bunker, Andrew J. +37 more
Reionization is thought to be driven by faint star-forming galaxies, but characterizing this population has long remained very challenging. Here, we utilize deep nine-band JADES (JWST Advanced Deep Extragalactic Survey)/NIRCam (Near-Infrared Camera) imaging to study the star-forming and ionizing properties of 756 $z\sim 6-9$ galaxies, including hu…
The galaxy UV luminosity function at z ≃ 11 from a suite of public JWST ERS, ERO, and Cycle-1 programs
Cullen, F.; McLure, R. J.; Dunlop, J. S. +8 more
We present a new determination of the evolving galaxy ultraviolet (UV) luminosity function (LF) over the redshift range 9.5 < z < 12.5 based on a wide-area (>250 arcmin2) data set of JWST NIRCam near-infrared imaging assembled from 13 public JWST surveys. Our relatively large-area search allows us to uncover a sample of 61 robu…
JWST PRIMER: a new multifield determination of the evolving galaxy UV luminosity function at redshifts z ≃ 9 - 15
Bowler, R. A. A.; Cullen, F.; McLure, R. J. +18 more
We present a new determination of the evolving galaxy ultraviolet (UV) luminosity function (LF) over the redshift range
Metal-poor star formation at z > 6 with JWST: new insight into hard radiation fields and nitrogen enrichment on 20 pc scales
Charlot, Stéphane; Chevallard, Jacopo; Maseda, Michael V. +11 more
Nearly a decade ago, we began to see indications that reionization-era galaxies power hard radiation fields rarely seen at lower redshift. Most striking were detections of nebular C IV emission in what appeared to be typical low-mass galaxies, requiring an ample supply of 48 eV photons to triply ionize carbon. We have obtained deep JWST/NIRSpec R …
Nebular dominated galaxies: insights into the stellar initial mass function at high redshift
Bunker, Andrew J.; Cameron, Alex J.; Saxena, Aayush +3 more
We identify a low-metallicity (
Low-mass bursty galaxies in JADES efficiently produce ionizing photons and could represent the main drivers of reionization
Maiolino, R.; Sun, F.; Egami, E. +21 more
We use deep imaging from the JWST Advanced Deep Extragalactic Survey (JADES) to study the evolution of the ionizing photon production efficiency, ξion. We estimate ξion for a sample of 677 galaxies at z ~ 4-9 using NIRCam (Near-Infrared Camera) photometry. Specifically, combinations of the medium and wide bands F335M-F356W an…
Galaxy build-up in the first 1.5 Gyr of cosmic history: insights from the stellar mass function at z 4-9 from JWST NIRCam observations
Pérez-González, Pablo G.; Santini, Paola; Dickinson, Mark +28 more
Combining the public JWST/NIRCam imaging programs CEERS, PRIMER, and JADES, spanning a total area of $\sim 500\, {\rm arcmin}^2$, we obtain a sample of $\gt $30 000 galaxies at $z_{\rm phot}\sim 4\!-\!9$ that allows us to perform a complete, rest-optical-selected census of the galaxy population at $z\gt 3$. Comparing the stellar mass $M_*$ and the…
The JWST EXCELS survey: too much, too young, too fast? Ultra-massive quiescent galaxies at 3 < z < 5
Cimatti, A.; Cullen, F.; McLure, R. J. +21 more
We report ultra-deep, medium-resolution spectroscopic observations for four quiescent galaxies with log
EPOCHS VI: the size and shape evolution of galaxies since z 8 with JWST Observations
Conselice, C. J.; Adams, N. J.; Li, Q. +8 more
We present the results of a size and structural analysis of 1395 galaxies at 0.5 ≤ z ≲ 8 with stellar masses log (M*/M⊙)> 9.5 within the James Webb Space Telescope Public CEERS field that overlaps with the Hubble Space Telescope Cosmic Assembly Near-infrared Deep Extragalactic Legacy Survey EGS observations. We use GALFIT …