Professor Kevin Pimbblet's Outputs (17)

Predicting the ages of galaxies with an artificial neural network (2024)
Journal Article
Hunt, L. J., Pimbblet, K. A., & Benoit, D. M. (2024). Predicting the ages of galaxies with an artificial neural network. Monthly notices of the Royal Astronomical Society, 529(1), 479-498. https://doi.org/10.1093/mnras/stae479

We present a new method of predicting the ages of galaxies using a machine learning (ML) algorithm with the goal of providing an alternative to traditional methods. We aim to match the ability of traditional models to predict the ages of galaxies by... Read More about Predicting the ages of galaxies with an artificial neural network.

Environments of dwarf galaxies with optical AGN characteristics (2020)
Journal Article
Kristensen, M., Pimbblet, K., & Penny, S. (2020). Environments of dwarf galaxies with optical AGN characteristics. Monthly notices of the Royal Astronomical Society, 496(3), 2577-2590. https://doi.org/10.1093/mnras/staa1719

© 2020 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society. This study aims to explore the relation between dwarf galaxies (M∗ ≤ 5 × 109 M·) with active galactic nuclei (AGNs) and their environment by compar... Read More about Environments of dwarf galaxies with optical AGN characteristics.

The rotational profiles of cluster galaxies (2019)
Journal Article
Bilton, L. E., Hunt, M., Pimbblet, K. A., & Roediger, E. (2019). The rotational profiles of cluster galaxies. Monthly notices of the Royal Astronomical Society, 490(4), 5017-5032. https://doi.org/10.1093/mnras/stz2927

© 2019 The Author(s) We compile two samples of cluster galaxies with complimentary hydrodynamic and N-body analysis using FLASH code to ascertain how their differing populations drive their rotational profiles and to better understand their dynamical... Read More about The rotational profiles of cluster galaxies.

Heterogeneity of inverted calcium II H:K ratio cluster galaxies (2019)
Journal Article
Pimbblet, K. A., Crossett, J. P., & Fraser-McKelvie, A. (2019). Heterogeneity of inverted calcium II H:K ratio cluster galaxies. Monthly notices of the Royal Astronomical Society, 490(1), 455-466. https://doi.org/10.1093/mnras/stz2549

© 2019 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society The ratio of calcium II H plus H∊ to calcium II K inverts as a galaxy stellar population moves from being dominated by older stars to possessing mor... Read More about Heterogeneity of inverted calcium II H:K ratio cluster galaxies.

Redshift measurement through star formation (2019)
Journal Article
Lindholmer, M. O., & Pimbblet, K. A. (2019). Redshift measurement through star formation. Astronomy and Astrophysics, 629, Article A7. https://doi.org/10.1051/0004-6361/201833046

© ESO 2019. In this work we use the property that, on average, star formation rate increases with redshift for objects with the same mass - the so called galaxy main sequence - to measure the redshift of galaxy clusters. We use the fact that the gene... Read More about Redshift measurement through star formation.

The effect of minor and major mergers on the evolution of low excitation radio galaxies (2019)
Journal Article
Gordon, Y. A., Pimbblet, K. A., Kaviraj, S., Owers, M. S., O'Dea, C. P., Walmsley, M., Baum, S. A., Crossett, J. P., Fraser-Mckelvie, A., Lintott, C. J., & Pierce, J. C. (2019). The effect of minor and major mergers on the evolution of low excitation radio galaxies. The Astrophysical journal, 878(2), Article 88. https://doi.org/10.3847/1538-4357/ab203f

We use deep, μ r lesssim 28 mag arcsec−2, r-band imaging from the Dark Energy Camera Legacy Survey to search for past, or ongoing, merger activity in a sample of 282 low-excitation radio galaxies (LERGs) at z < 0.07. Our principal aim is to assess t... Read More about The effect of minor and major mergers on the evolution of low excitation radio galaxies.

Evolution of starburst galaxies in the Illustris simulation (2018)
Journal Article
Wilkinson, C. L., Pimbblet, K. A., Stott, J. P., Few, C. G., & Gibson, B. K. (2018). Evolution of starburst galaxies in the Illustris simulation. Monthly notices of the Royal Astronomical Society, 479(1), 758-767. https://doi.org/10.1093/mnras/sty1493

© 2018 The Author(s). Published by Oxford University Press on behalf of The Royal Astronomical Society. There is a consensus in the literature that starburst galaxies are triggered by interaction events. However, it remains an open question as to wha... Read More about Evolution of starburst galaxies in the Illustris simulation.

The Taipan Galaxy Survey: Scientific Goals and Observing Strategy (2017)
Journal Article
Driver, S. P., Taylor, E. N., Lagos, C., White, M., Bilicki, M., Brown, M. J. I., Bryant, J., Croom, S., Jones, D. H., Koribalski, B., Lorente, N., Tinney, C. G., Tothill, N. F. H., Koribalski, B., Lima Da Cunha, E., Hopkins, A. M., Colless, M., Taylor, E. N. C., Blake, C., Howlett, C., …Watson, F. (2017). The Taipan Galaxy Survey: Scientific Goals and Observing Strategy. Publications / Astronomical Society of Australia, 34, Article ARTN e047. https://doi.org/10.1017/pasa.2017.41

© Astronomical Society of Australia 2017; published by Cambridge University Press. The Taipan galaxy survey (hereafter simply 'Taipan') is a multi-object spectroscopic survey starting in 2017 that will cover 2π steradians over the southern sky (δ ≲ 1... Read More about The Taipan Galaxy Survey: Scientific Goals and Observing Strategy.

The evolutionary sequence of post-starburst galaxies (2017)
Journal Article
Wilkinson, C. L., Pimbblet, K. A., & Stott, J. P. (2017). The evolutionary sequence of post-starburst galaxies. Monthly notices of the Royal Astronomical Society, 472(2), 1447-1457. https://doi.org/10.1093/mnras/stx2034

© 2017 The Authors. There are multiple ways in which to select post-starburst galaxies in the literature. In this work, we present a study into how two well-used selection techniques have consequences on observable post-starburst galaxy parameters, s... Read More about The evolutionary sequence of post-starburst galaxies.

Evidence for HI replenishment in massive galaxies through gas accretion from the cosmic web (2016)
Journal Article
Kleiner, D., Pimbblet, K. A., Heath Jones, D., Koribalski, B. S., & Serra, P. (2017). Evidence for HI replenishment in massive galaxies through gas accretion from the cosmic web. Monthly notices of the Royal Astronomical Society, 466(4), 4692-4710. https://doi.org/10.1093/mnras/stw3328

We examine the H i -to-stellar mass ratio (H i fraction) for galaxies near filament backbones within the nearby Universe (d < 181 Mpc). This work uses the 6 degree Field Galaxy Survey (6dFGS) and the Discrete Persistent Structures Extractor (DisPerSE... Read More about Evidence for HI replenishment in massive galaxies through gas accretion from the cosmic web.

Near-ultraviolet signatures of environment-driven galaxy quenching in Sloan Digital Sky Survey groups (2016)
Journal Article
Crossett, J. P., Pimbblet, K. A., Jones, D. H., Brown, M. J., & Stott, J. P. (2017). Near-ultraviolet signatures of environment-driven galaxy quenching in Sloan Digital Sky Survey groups. Monthly notices of the Royal Astronomical Society, 464(1), 480-490. https://doi.org/10.1093/mnras/stw2228

© 2016 The Authors. Published by Oxford University Press on behalf of the Royal Astronomical Society. We have investigated the effect of group environment on residual star formation in galaxies, using Galaxy Evolution Explorer near-ultraviolet (NUV)... Read More about Near-ultraviolet signatures of environment-driven galaxy quenching in Sloan Digital Sky Survey groups.

A photometrically and spectroscopically confirmed population of passive spiral galaxies (2016)
Journal Article
Fraser-McKelvie, A., Brown, M. J. I., Pimbblet, K. A., Dolley, T., Crossett, J. P., & Bonne, N. J. (2016). A photometrically and spectroscopically confirmed population of passive spiral galaxies. Monthly notices of the Royal Astronomical Society. Letters, 462(1), L11-L15. https://doi.org/10.1093/mnrasl/slw117

We have identified a population of passive spiral galaxies from photometry and integral field spectroscopy. We selected z < 0.035 spiral galaxies that have WISE colours consistent with little mid-infrared emission from warm dust. Matched aperture pho... Read More about A photometrically and spectroscopically confirmed population of passive spiral galaxies.

The many assembly histories of massive void galaxies as revealed by integral field spectroscopy (2016)
Journal Article
Fraser-McKelvie, A., Pimbblet, K. A., Penny, S. J., & Brown, M. J. I. (2016). The many assembly histories of massive void galaxies as revealed by integral field spectroscopy. Monthly notices of the Royal Astronomical Society, 459(1), 754-770. https://doi.org/10.1093/mnras/stw677

We present the first detailed integral field spectroscopy study of nine central void galaxies with M*>10¹⁰Mʘ using the Wide Field Spectrograph to determine how a range of assembly histories manifest themselves in the current day Universe.While the ma... Read More about The many assembly histories of massive void galaxies as revealed by integral field spectroscopy.

The rarity of star formation in brightest cluster galaxies as measured by WISE (2014)
Journal Article
Fraser-McKelvie, A., Brown, M. J. I., & Pimbblet, K. A. (2014). The rarity of star formation in brightest cluster galaxies as measured by WISE. Monthly notices of the Royal Astronomical Society. Letters, 444(1), L63-L67. https://doi.org/10.1093/mnrasl/slu117

We present the mid-infrared star formation rates of 245 X-ray selected, nearby (z < 0.1) brightest cluster galaxies (BCGs). A homogeneous and volume limited sample of BCGs was created by X-ray selecting clusters with Lx > 1 × 1044 erg s⁻ ¹. The Wide-... Read More about The rarity of star formation in brightest cluster galaxies as measured by WISE.

Photometric studies of Abell 1664: the subtle effect a minor merger has on cluster galaxies (2014)
Journal Article
Kleiner, D., Pimbblet, K. A., Owers, M. S., Jones, D. H., & Stephenson, A. P. (2014). Photometric studies of Abell 1664: the subtle effect a minor merger has on cluster galaxies. Monthly notices of the Royal Astronomical Society, 439(3), 2755-2764. https://doi.org/10.1093/mnras/stu131

A combination of BRI photometry and archival Chandra X-ray data have been used to analyse the effects a minor merger has on the galaxy population of A1664. We utilize adaptive smoothing techniques in the 2D spatial distribution of cluster galaxies to... Read More about Photometric studies of Abell 1664: the subtle effect a minor merger has on cluster galaxies.

Environments and morphologies of red sequence galaxies with residual star formation in massive clusters (2013)
Journal Article
Crossett, J. P., Pimbblet, K. A., Stott, J. P., & Jones, D. H. (2014). Environments and morphologies of red sequence galaxies with residual star formation in massive clusters. Monthly notices of the Royal Astronomical Society, 437(3), 2521-2530. https://doi.org/10.1093/mnras/stt2065

We present a photometric investigation into recent star formation in galaxy clusters at z ∼ 0.1. We use spectral energy distribution templates to quantify recent star formation in large Xray-selected clusters from the LARCS survey using matched GALEX... Read More about Environments and morphologies of red sequence galaxies with residual star formation in massive clusters.

The drivers of AGN activity in galaxy clusters: AGN fraction as a function of mass and environment (2012)
Journal Article
Pimbblet, K. A., Shabala, S. S., Haines, C. P., Fraser-McKelvie, A., & Floyd, D. J. E. (2013). The drivers of AGN activity in galaxy clusters: AGN fraction as a function of mass and environment. Monthly notices of the Royal Astronomical Society, 429(2), 1827-1839. https://doi.org/10.1093/mnras/sts470

We present an analysis of optical spectroscopically identified active galactic nuclei (AGN) down to a cluster magnitude of M * + 1 in a sample of six self-similar Sloan Digital Sky Survey galaxy clusters at z ~ 0.07. These clusters are specifically s... Read More about The drivers of AGN activity in galaxy clusters: AGN fraction as a function of mass and environment.