Valency Hub
alphaFeedback
CD

Callum T. Donnan

0000-0002-7622-0208
astro-ph.GAastro-ph.COastro-ph.SRastro-ph.EPastro-ph.HEastro-ph.IM

On Valency

published · living versions
W_jz6ja4qx·v1 · currentpublished
SPAM: Survey Overview and JWST/NIRCam Multi-Band Photometry Catalog
with Rebecca L. Larson, Kelcey Davis, Hollis B. Akins, Steven L. Finkelstein +44
1 version
W_6bvm5vp9·v1published
Little Red Dots with Broad Hββ Lines Reveal the Black Hole Mass Function at 7<z<9.5

Preprints & journals

56 papers in the corpus · 2022–2026
JWST CAPERS: Spectroscopic evaluation of very high redshift galaxy candidates2610.12322v1 · Callum T. Donnan, Mark Dickinson, Lorenzo Napolitano et al.2026 · 0 citationsarXiv
The AURORA Survey: Determining the Production Mechanism for OI λ8449\mathbf{\lambda 8449} Emission in Star-forming Galaxies at Cosmic Noon2609.32045v1 · Leonardo Clarke, Alice E. Shapley, Zhiwei Shao et al.2026 · 0 citationsarXiv
The gradual decline of Lyα\alpha visibility in the CANDELS fields: evidence for the combined effects of galaxy evolution and reionization2609.00199v1 · L. Napolitano, L. Pentericci, A. Ferrara et al.2026 · 0 citationsarXiv
Beyond orientation: Evidence for distinct physical regimes among Little Red Dots and Little Blue Dots2608.21522v1 · L. Barrufet, J. S. Dunlop, M. L. Hamadouche et al.2026 · 0 citationsarXiv
A clear detection of proper motion confirms that the claimed z≃32\mathbf{z\simeq32} galaxy candidate, "Capotauro'', is a Y-type brown dwarf2608.07461v1 · F.-Y. F. Liu, D. J. McLeod, B. J. Sutlieff et al.2026 · 0 citationsarXiv
Galaxy clusters in the VIDEO fields: detection and characterisation in the context of MOONRISE2606.13359v2 · Pierre Galois, Christophe Benoist, Gianluca Castignani et al.2026 · 0 citationsarXiv
Massive Galaxies Form Early and Gray: Stellar Assembly and Dust Attenuation at z>3.5\mathbf{z>3.5} from CAPERS2605.13966v1 · Katherine Chworowsky, Steven L. Finkelstein, Anthony J. Taylor et al.2026 · 0 citationsarXiv
A search for the first galaxies across >0.6>0.6 deg2^2 of JWST imaging: new evidence for a rapid decline in star-formation activity at z>12z>122604.16666v1 · D. J. McLeod, J. S. Dunlop, R. J. McLure et al.2026 · 0 citationsarXiv
Little Red Dots: One Photometric Tag Concealing Diverse Spectroscopic Flavors of Massive Star Formation and Black Hole Activity2602.20247v3 · Pablo G. P'erez-Gonz'alez, Guillermo Barro, Stefano Carniani et al.2026 · 1 citationarXiv
The JWST EXCELS survey: The ages and abundances of 3<z<53<z<5 massive quiescent galaxies show that downsizing was already in place by z≃4z\simeq42602.05934v2 · Ho-Hin Leung, Adam C. Carnall, Elizabeth Taylor et al.2026 · 1 citationarXiv
Spectroscopic confirmation of a large and luminous galaxy with weak emission lines at z=13.53\mathbf{z = 13.53}2601.11515v2 · Callum T. Donnan, Derek J. McLeod, Ross J. McLure et al.2026 · 2 citationsarXiv
The JWST EXCELS survey: Outflows in 1.5 < z < 5 quiescent and recently quenched galaxies are likely relics from episodic AGN activity2601.02269v2 · Elizabeth Taylor, Adam C. Carnall, David Maltby et al.2026 · 2 citationsarXiv
The JWST EXCELS Survey: gas-phase metallicity evolution at 2 < z < 82511.00705v2 · T. M. Stanton, F. Cullen, A. C. Carnall et al.2025 · 6 citationsarXiv
The AURORA Survey: Ionizing Photon Production Efficiency with Minimal Nebular Dust Attenuation Systematics2510.12177v1 · Anthony J. Pahl, Alice Shapley, Naveen A. Reddy et al.2025 · 3 citationsarXiv
The JWST EXCELS Survey: A spectroscopic investigation of the ionizing properties of star-forming galaxies at 1<z<82509.26591v2 · R. Begley, R. J. McLure, F. Cullen et al.2025 · 5 citationsMon Not R Astron Soc (2025)
PRIMER & JADES reveal an abundance of massive quiescent galaxies at 2 < z < 52509.06913v2 · Struan D. Stevenson, Adam C. Carnall, Ho-Hin Leung et al.2025 · 13 citationsMon Not R Astron Soc (2025)
Lyα\alpha visibility from z = 4.5 to 11 in the UDS field: Evidence for a high neutral hydrogen fraction and small ionized bubbles at z ∼\sim 72508.14171v2 · L. Napolitano, L. Pentericci, M. Dickinson et al.2025 · 5 citationsarXiv
The AURORA Survey: High-Redshift Empirical Metallicity Calibrations from Electron Temperature Measurements at z=2-102508.10099v2 · Ryan L. Sanders, Alice E. Shapley, Michael W. Topping et al.2025 · 14 citationsarXiv
Strength in Numbers: Red Galaxies Bolster the Cosmic Star Formation Rate Density at z > 32508.05740v1 · L. Barrufet, J.S. Dunlop, R. Begley et al.2025 · 3 citationsMon Not R Astron Soc (2026)
The AURORA Survey: Robust Helium Abundances at High Redshift Reveal A Subpopulation of Helium-Enhanced Galaxies in the Early Universe2507.17057v1 · Danielle A. Berg, Ryan L. Sanders, Alice E. Shapley et al.2025 · 6 citationsarXiv
Very bright, very blue, and very red: JWST CAPERS analysis of highly luminous galaxies with extreme UV slopes at z=10\mathbf{z = 10}2507.10518v2 · Callum T. Donnan, Mark Dickinson, Anthony J. Taylor et al.2025 · 1 citationarXiv
CAPERS-LRD-z9: A Gas Enshrouded Little Red Dot Hosting a Broad-line AGN at z=9.2882505.04609v4 · Anthony J. Taylor, Vasily Kokorev, Dale D. Kocevski et al.2025 · 1 citationarXiv
CAPERS Observations of Two UV-Bright Galaxies at z>10. More Evidence for Bursting Star Formation in the Early Universe2504.12504v1 · Vasily Kokorev, 'Oscar A. Ch'avez Ortiz, Anthony J. Taylor et al.2025 · 25 citationsarXiv
JWST PRIMER: A deep JWST study of all ALMA-detected galaxies in PRIMER COSMOS -- dust-obscured star-formation history back to z ≃\simeq 72503.07774v2 · Feng-Yuan Liu, James S. Dunlop, Ross J. McLure et al.2025 · 9 citationsMon Not R Astron Soc (2025)
The JWST EXCELS survey: Probing strong-line diagnostics and the chemical evolution of galaxies over cosmic time using Te-metallicities2502.10499v1 · D. Scholte, F. Cullen, A. C. Carnall et al.2025 · 32 citationsarXiv
The JWST EXCELS survey: an extremely metal-poor galaxy at z=8.271z=8.271 hosting an unusual population of massive stars2501.11099v4 · F. Cullen, A. C. Carnall, D. Scholte et al.2025 · 33 citationsarXiv
No evidence (yet) for increased star-formation efficiency at early times2501.03217v2 · C. T. Donnan, J. S. Dunlop, R. J. McLure et al.2025 · 22 citationsarXiv
The JWST EXCELS survey: direct estimates of C, N, and O abundances in two relatively metal-rich galaxies at z≃5\mathbf{z\simeq5}2412.10557v2 · K. Z. Arellano-C'ordova, F. Cullen, A. C. Carnall et al.2024 · 1 citationarXiv
JWST PRIMER: strong evidence for the environmental quenching of low-mass galaxies out to z≃2\mathbf{\textit{z} \simeq 2}2412.09592v1 · M. L. Hamadouche, R. J. McLure, A. Carnall et al.2024 · 1 citationarXiv
The JWST EXCELS survey: tracing the chemical enrichment pathways of high-redshift star-forming galaxies with O, Ar and Ne abundances2411.11837v3 · T. M. Stanton, F. Cullen, A. C. Carnall et al.2024 · 22 citationsarXiv
Exploring the Nature of Little Red Dots: Constraints on AGN and Stellar Contributions from PRIMER MIRI Imaging2411.12005v2 · Gene C. K. Leung, Steven L. Finkelstein, Pablo G. P'erez-Gonz'alez et al.2024 · 3 citationsarXiv
The evolution of [OIII]+Hβ+\rm{H}\beta equivalent width from z≃3−8\mathbf{z\simeq3-8}: implications for the production and escape of ionizing photons during reionization2410.10988v2 · R. Begley, R. J. McLure, F. Cullen et al.2024 · 1 citationarXiv
The AURORA Survey: An Extraordinarily Mature, Star-forming Galaxy at z∼7z\sim 72410.00110v3 · Alice E. Shapley, Ryan L. Sanders, Michael W. Topping et al.2024 · 0 citationsarXiv
JWST PRIMER: A lack of outshining in four normal z =4-6 galaxies from the ALMA-CRISTAL Survey2409.10963v2 · N. E. P. Lines, R. A. A. Bowler, N. J. Adams et al.2024 · 18 citationsarXiv
Broad-Line AGN at 3.5<z<6: The Black Hole Mass Function and a Connection with Little Red Dots2409.06772v2 · Anthony J. Taylor, Steven L. Finkelstein, Dale D. Kocevski et al.2024 · 10 citationsarXiv
ASTRODEEP-JWST: NIRCam-HST multiband photometry and redshifts for half a million sources in six extragalactic deep fields2409.00169v3 · E. Merlin, P. Santini, D. Paris et al.2024 · 44 citationsA&A 691, A240 (2024)
The AURORA Survey: The Nebular Attenuation Curve of a Galaxy at z=4.41 from Ultraviolet to Near-Infrared Wavelengths2408.05273v2 · Ryan L. Sanders, Alice E. Shapley, Michael W. Topping et al.2024 · 22 citationsarXiv
The AURORA Survey: A New Era of Emission-line Diagrams with JWST/NIRSpec2407.00157v3 · Alice E. Shapley, Ryan L. Sanders, Michael W. Topping et al.2024 · 48 citationsarXiv
The JWST EXCELS survey: Too much, too young, too fast? Ultra-massive quiescent galaxies at 3 < z < 52405.02242v2 · A. C. Carnall, F. Cullen, R. J. McLure et al.2024 · 132 citationsarXiv
The NIRVANDELS Survey: the stellar and gas-phase mass-metallicity relations of star-forming galaxies at z = 3.52405.00774v2 · T. M. Stanton, F. Cullen, R. J. McLure et al.2024 · 33 citationsarXiv
The Rise of Faint, Red AGN at z>4z>4: A Sample of Little Red Dots in the JWST Extragalactic Legacy Fields2404.03576v3 · Dale D. Kocevski, Steven L. Finkelstein, Guillermo Barro et al.2024 · 23 citationsarXiv
Galaxy Build-up in the first 1.5 Gyr of Cosmic History: Insights from the Stellar Mass Function at z∼4−9z\sim4-9 from JWST NIRCam Observations2403.08872v2 · Andrea Weibel, Pascal A. Oesch, Laia Barrufet et al.2024 · 110 citationsMonthly Notices of the Royal Astronomical Society, Volume 533 (2024), Issue 2, pp.1808-1838
JWST PRIMER: A new multi-field determination of the evolving galaxy UV luminosity function at redshifts z≃9−15\mathbf{z \simeq 9-15}2403.03171v3 · C. T. Donnan, R. J. McLure, J. S. Dunlop et al.2024 · 11 citationsarXiv
The sizes of bright Lyman-break galaxies at z≃3−5z\simeq3-5 with JWST PRIMER2401.15971v2 · R. G. Varadaraj, R. A. A. Bowler, M. J. Jarvis et al.2024 · 1 citationarXiv
The ultraviolet continuum slopes of high-redshift galaxies: evidence for the emergence of dust-free stellar populations at z > 102311.06209v2 · F. Cullen, D. J. McLeod, R. J. McLure et al.2023 · 82 citationsarXiv
Confirmation and refutation of very luminous galaxies in the early Universe.37579792 · Arrabal Haro, Pablo, Dickinson, Mark, Finkelstein, Steven L et al.2023 · 227 citationsNature. 2023;622(7984):707-711
Connecting the escape fraction of Lyman-alpha and Lyman-continuum photons in star-forming galaxies at z≃4−5\mathbf{z\simeq 4-5}2306.03916v2 · R. Begley, F. Cullen, R. J. McLure et al.2023 · 1 citationarXiv
A massive quiescent galaxy at redshift 4.658.37216978 · Carnall, Adam C, McLure, Ross J, Dunlop, James S et al.2023 · 236 citationsNature. 2023;619(7971):716-719
The galaxy UV luminosity function at z≃11\mathbf{z \simeq 11} from a suite of public JWST ERS, ERO and Cycle-1 programs2304.14469v2 · D. J. McLeod, C. T. Donnan, R. J. McLure et al.2023 · 7 citationsarXiv
The connection between stellar mass, age and quenching timescale in massive quiescent galaxies at z≃1z \simeq 12303.06107v1 · M.L. Hamadouche, A. C. Carnall, R. J. McLure et al.2023 · 10 citationsarXiv
Career total: 81 works. 56 are in this corpus.Showing the 50 most recent.

Profile built from the corpus for this byline.

Author records are still filling in while the Hub is in alpha. If this is your page, you'll be able to claim it soon. Spot a mistake? Tell us.