All Outputs (5)

High-velocity outflows persist up to 1 Gyr after a starburst in recently quenched galaxies at z > 1 (2024)
Journal Article
Taylor, E., Maltby, D., Almaini, O., Merrifield, M., Wild, V., Rowlands, K., & Harrold, J. (2024). High-velocity outflows persist up to 1 Gyr after a starburst in recently quenched galaxies at z > 1. Monthly Notices of the Royal Astronomical Society, 535(2), 1684-1692. https://doi.org/10.1093/mnras/stae2463

High-velocity outflows are ubiquitous in star-forming galaxies at cosmic noon, but are not as common in passive galaxies at the same epoch. Using optical spectra of galaxies selected from the UKIDSS Ultra Deep Survey at z > 1, we perform a stacking a... Read More about High-velocity outflows persist up to 1 Gyr after a starburst in recently quenched galaxies at z > 1.

The Structure of Massive Star-Forming Galaxies from JWST and ALMA: Dusty, High Redshift Disk Galaxies (2024)
Journal Article
Gillman, S., Smail, I., Gullberg, B., Swinbank, A., Vijayan, A. P., Lee, M., Brammer, G., Dudzeviciute, U., Greve, T. R., Almaini, O., Brinch, M., Chapman, S. C., Chen, C.-C., Ikarashi, S., Matsuda, Y., Wang, W.-H., Walter, F., & van der Werf, P. P. (in press). The Structure of Massive Star-Forming Galaxies from JWST and ALMA: Dusty, High Redshift Disk Galaxies. Astronomy and Astrophysics,

We present an analysis of the JWST NIRCam and MIRI morphological and structural properties of 80 massive (log10(M∗[M]) = 11.2 ± 0.1) dusty star-forming galaxies at z = 2.7+1.2 −0.7 , identified as sub-millimetre galaxies (SMGs) by ALMA, that have bee... Read More about The Structure of Massive Star-Forming Galaxies from JWST and ALMA: Dusty, High Redshift Disk Galaxies.

The JWST EXCELS survey: Too much, too young, too fast? Ultra-massive quiescent galaxies at 3 < z < 5 (2024)
Journal Article
Carnall, A. C., Cullen, F., Mclure, R. J., Mcleod, D. J., Begley, R., Donnan, C. T., Dunlop, J. S., Shapley, A. E., Rowlands, K., Almaini, O., Arellano-Córdova, K. Z., Barrufet, L., Cimatti, A., Ellis, R. S., Grogin, N. A., Hamadouche, M. L., Illingworth, G. D., Koekemoer, A. M., Leung, H.-H., Lovell, C. C., …Wild, V. (2024). The JWST EXCELS survey: Too much, too young, too fast? Ultra-massive quiescent galaxies at 3 < z < 5. Monthly Notices of the Royal Astronomical Society, 534(1), 325–348. https://doi.org/10.1093/mnras/stae2092

We report ultra-deep, medium-resolution spectroscopic observations for 4 quiescent galaxies with log 10 (M * /M ⊙) > 11 at 3 < z < 5. These data were obtained with JWST NIRSpec as part of the Early eXtragalactic Continuum and Emission Line Science (E... Read More about The JWST EXCELS survey: Too much, too young, too fast? Ultra-massive quiescent galaxies at 3 < z < 5.

Increasing AGN sample completeness using long-term near-infrared variability (2024)
Journal Article
Green, K., Elmer, E., Maltby, D. T., Almaini, O., Merrifield, M., & Hartley, W. G. (2024). Increasing AGN sample completeness using long-term near-infrared variability. Monthly Notices of the Royal Astronomical Society, 531(2), 2551-2562. https://doi.org/10.1093/mnras/stae1322

In this work, we use 8 years of deep near-infrared imaging to select and study a new set of 601 active galaxies identified through long-term near-infrared (NIR) variability in the UKIDSS Ultra Deep Survey (UDS). These objects are compared to 710 X-ra... Read More about Increasing AGN sample completeness using long-term near-infrared variability.

Correcting for the overabundance of low-mass quiescent galaxies in semi-analytic models (2024)
Journal Article
Harrold, J. E., Almaini, O., Pearce, F. R., & Yates, R. M. (2024). Correcting for the overabundance of low-mass quiescent galaxies in semi-analytic models. Monthly Notices of the Royal Astronomical Society: Letters, 532(1), L61-L66. https://doi.org/10.1093/mnrasl/slae043

We compare the L-Galaxies semi-analytic model to deep observational data from the UKIDSS Ultra Deep Survey (UDS) across the redshift range 0.5 < z < 3. We find that the overabundance of low-mass, passive galaxies at high redshifts in the model can be... Read More about Correcting for the overabundance of low-mass quiescent galaxies in semi-analytic models.