Professor Alastair Edge's Outputs (335)

The Dependence of Cluster Galaxy Properties on the Central Entropy of Their Host Cluster (2017)
Journal Article
Kim, J., Ko, J., Hwang, H. S., Edge, A. C., Lee, J. H., Lee, J. C., & Jeong, H. (2017). The Dependence of Cluster Galaxy Properties on the Central Entropy of Their Host Cluster. Astrophysical Journal, 836(1), Article 105. https://doi.org/10.3847/1538-4357/aa5b8e

We present a study of the connection between brightest cluster galaxies (BCGs) and their host galaxy clusters. Using galaxy clusters at $0.1\lt z\lt 0.3$ from the Hectospec Cluster Survey (HeCS) with X-ray information from the Archive of Chandra Clus... Read More about The Dependence of Cluster Galaxy Properties on the Central Entropy of Their Host Cluster.

A counter-image to the gravitational arc in Abell 1201: Evidence for IMF variations, or a 10^10 M⊙ black hole? (2017)
Journal Article
Smith, R. J., Lucey, J. R., & Edge, A. C. (2017). A counter-image to the gravitational arc in Abell 1201: Evidence for IMF variations, or a 10^10 M⊙ black hole?. Monthly Notices of the Royal Astronomical Society, 467(1), 836-848. https://doi.org/10.1093/mnras/stx059

Abell 1201 is a massive galaxy cluster at z=0.169 with a brightest cluster galaxy (BCG) that acts as a gravitational lens to a background source at z=0.451. The lensing configuration is unusual, with a single bright arc formed at small radius (∼2 arc... Read More about A counter-image to the gravitational arc in Abell 1201: Evidence for IMF variations, or a 10^10 M⊙ black hole?.

A 13CO Detection in a Brightest Cluster Galaxy (2017)
Journal Article
Vantyghem, A., McNamara, B., Edge, A., Combes, F., Russell, H., Fabian, A., …Salomé, P. (2017). A 13CO Detection in a Brightest Cluster Galaxy. Astrophysical Journal, 848(2), Article 101. https://doi.org/10.3847/1538-4357/aa8fd0

We present ALMA Cycle 4 observations of CO(1-0), CO(3-2), and 13CO(3-2) line emission in the brightest cluster galaxy (BCG) of RXJ0821+0752. This is one of the first detections of 13CO line emission in a galaxy cluster. Half of the CO(3-2) line emiss... Read More about A 13CO Detection in a Brightest Cluster Galaxy.

Kiloparsec-scale Dust Disks in High-redshift Luminous Submillimeter Galaxies (2016)
Journal Article
Hodge, J., Swinbank, A., Simpson, J., Smail, I., Walter, F., Alexander, D., …van der Werf, P. (2016). Kiloparsec-scale Dust Disks in High-redshift Luminous Submillimeter Galaxies. Astrophysical Journal, 833(1), Article 103. https://doi.org/10.3847/1538-4357/833/1/103

We present high-resolution (0farcs16) 870 μm Atacama Large Millimeter/submillimeter Array (ALMA) imaging of 16 luminous (${L}_{\mathrm{IR}}\sim 4\times {10}^{12}\,{L}_{\odot }$) submillimeter galaxies (SMGs) from the ALESS survey of the Extended Chan... Read More about Kiloparsec-scale Dust Disks in High-redshift Luminous Submillimeter Galaxies.

Molecular gas along a bright Hα filament in 2A 0335+096 revealed by Alma (2016)
Journal Article
Vantyghem, A., McNamara, B., Russell, H., Hogan, M., Edge, A., Nulsen, P., …Voit, G. (2016). Molecular gas along a bright Hα filament in 2A 0335+096 revealed by Alma. Astrophysical Journal, 832(2), Article 148. https://doi.org/10.3847/0004-637x/832/2/148

We present ALMA CO(1–0) and CO(3–2) observations of the brightest cluster galaxy (BCG) in the 2A 0335+096 galaxy cluster (z = 0.0346). The total molecular gas mass of 1.13 ± 0.15 × 109 M ⊙ is divided into two components: a nuclear region and a 7 kpc... Read More about Molecular gas along a bright Hα filament in 2A 0335+096 revealed by Alma.

Hiding in plain sight – recovering clusters of galaxies with the strongest AGN in their cores (2016)
Journal Article
Green, T., Edge, A., Ebeling, H., Burgett, W., Draper, P., Kaiser, N., …Waters, C. (2017). Hiding in plain sight – recovering clusters of galaxies with the strongest AGN in their cores. Monthly Notices of the Royal Astronomical Society, 465(4), 4872-4885. https://doi.org/10.1093/mnras/stw3059

A key challenge in understanding the feedback mechanism of active galactic nucleus (AGN) in Brightest Cluster Galaxies (BCGs) is the inherent rarity of catching an AGN during its strong outburst phase. This is exacerbated by the ambiguity of differen... Read More about Hiding in plain sight – recovering clusters of galaxies with the strongest AGN in their cores.

The SCUBA-2 Cosmology Legacy Survey: 850 μm maps, catalogues and number counts (2016)
Journal Article
Geach, J., Dunlop, J., Halpern, M., Smail, I., van der Werf, P., Alexander, D., …Zemcov, M. (2017). The SCUBA-2 Cosmology Legacy Survey: 850 μm maps, catalogues and number counts. Monthly Notices of the Royal Astronomical Society, 465(2), 1789-1806. https://doi.org/10.1093/mnras/stw2721

We present a catalogue of ∼3000 submillimetre sources detected (≥3.5σ) at 850 μm over ∼5 deg2 surveyed as part of the James Clerk Maxwell Telescope (JCMT) SCUBA-2 Cosmology Legacy Survey (S2CLS). This is the largest survey of its kind at 850 μm, incr... Read More about The SCUBA-2 Cosmology Legacy Survey: 850 μm maps, catalogues and number counts.

A Mechanism for stimulating AGN feedback by lifting gas in massive galaxies (2016)
Journal Article
McNamara, B., Russell, H., Nulsen, P., Hogan, M., Fabian, A., Pulido, F., & Edge, A. (2016). A Mechanism for stimulating AGN feedback by lifting gas in massive galaxies. Astrophysical Journal, 830(2), https://doi.org/10.3847/0004-637x/830/2/79

Observation shows that nebular emission, molecular gas, and young stars in giant galaxies are associated with rising X-ray bubbles inflated by radio jets launched from nuclear black holes. We propose a model where molecular clouds condense from low-e... Read More about A Mechanism for stimulating AGN feedback by lifting gas in massive galaxies.

Chandra X-ray observations of the hyper-luminous infrared galaxy IRAS F15307+3252 (2016)
Journal Article
Hlavacek-Larrondo, J., Gandhi, P., Hogan, M., Gendron-Marsolais, M., Edge, A., Fabian, A., …Mezcua, M. (2017). Chandra X-ray observations of the hyper-luminous infrared galaxy IRAS F15307+3252. Monthly Notices of the Royal Astronomical Society, 464(2), 2223-2233. https://doi.org/10.1093/mnras/stw2468

Hyper-luminous infrared galaxies (HyLIRGs) lie at the extreme luminosity end of the IR galaxy population with LIR > 1013 L⊙. They are thought to be closer counterparts of the more distant sub-millimeter galaxies, and should therefore be optimal targe... Read More about Chandra X-ray observations of the hyper-luminous infrared galaxy IRAS F15307+3252.

The mass distribution of the unusual merging cluster Abell 2146 from strong lensing (2016)
Journal Article
Coleman, J. E., King, L. J., Oguri, M., Russell, H. R., Canning, R. E., Leonard, A., …O'Dea, C. P. (2017). The mass distribution of the unusual merging cluster Abell 2146 from strong lensing. Monthly Notices of the Royal Astronomical Society, 464(2), 2469-2480. https://doi.org/10.1093/mnras/stw2425

Abell 2146 consists of two galaxy clusters that have recently collided close to the plane of the sky, and it is unique in showing two large shocks on Chandra X-ray Observatory images. With an early stage merger, shortly after first core passage, one... Read More about The mass distribution of the unusual merging cluster Abell 2146 from strong lensing.

Cold, clumpy accretion onto an active supermassive black hole (2016)
Journal Article
Tremblay, G. R., Oonk, J. R., Combes, F., Salomé, P., O'Dea, C. P., Baum, S. A., …Wise, M. W. (2016). Cold, clumpy accretion onto an active supermassive black hole. Nature, 534(7606), 218-221. https://doi.org/10.1038/nature17969

Supermassive black holes in galaxy centres can grow by the accretion of gas, liberating energy that might regulate star formation on galaxy-wide scales. The nature of the gaseous fuel reservoirs that power black hole growth is nevertheless largely un... Read More about Cold, clumpy accretion onto an active supermassive black hole.

A Multiwavelength Photometric Census of AGN and Star Formation Activity in the Brightest Cluster Galaxies of X-ray Selected Clusters (2016)
Journal Article
Green, T., Edge, A., Stott, J., Ebeling, H., Burgett, W., Chambers, K., …Waters, C. (2016). A Multiwavelength Photometric Census of AGN and Star Formation Activity in the Brightest Cluster Galaxies of X-ray Selected Clusters. Monthly Notices of the Royal Astronomical Society, 461(1), 560-577. https://doi.org/10.1093/mnras/stw1338

Despite their reputation as being ‘red and dead’, the unique environment inhabited by brightest cluster galaxies (BCGs) can often lead to a self-regulated feedback cycle between radiatively cooling intracluster gas and star formation and active galac... Read More about A Multiwavelength Photometric Census of AGN and Star Formation Activity in the Brightest Cluster Galaxies of X-ray Selected Clusters.

Optical emission line nebulae in galaxy cluster cores 1: the morphological, kinematic and spectral properties of the sample (2016)
Journal Article
Hamer, S., Edge, A., Swinbank, A., Wilman, R., Combes, F., Salomé, P., …Bremer, M. (2016). Optical emission line nebulae in galaxy cluster cores 1: the morphological, kinematic and spectral properties of the sample. Monthly Notices of the Royal Astronomical Society, 460(2), 1758-1789. https://doi.org/10.1093/mnras/stw1054

We present an Integral Field Unit survey of 73 galaxy clusters and groups with the VIsible Multi Object Spectrograph on the Very Large Telescope. We exploit the data to determine the H α gas dynamics on kpc scales to study the feedback processes occu... Read More about Optical emission line nebulae in galaxy cluster cores 1: the morphological, kinematic and spectral properties of the sample.

Discovery of a Supercluster at z ~ 0.91 and Testing the ΛCDM Cosmological Model (2016)
Journal Article
Kim, J., Im, M., Lee, S., Edge, A. C., Hyun, M., Kim, D., …Yoon, Y. (2016). Discovery of a Supercluster at z ~ 0.91 and Testing the ΛCDM Cosmological Model. Astrophysical Journal Letters, 821(1), https://doi.org/10.3847/2041-8205/821/1/l10

The ΛCDM cosmological model successfully reproduces many aspects of the galaxy and structure formation of the universe. However, the growth of large-scale structures (LSSs) in the early universe is not well tested yet with observational data. Here, w... Read More about Discovery of a Supercluster at z ~ 0.91 and Testing the ΛCDM Cosmological Model.

ALMA observations of cold molecular gas filaments trailing rising radio bubbles in PKS 0745-191 (2016)
Journal Article
Russell, H., McNamara, B., Fabian, A., Nulsen, P., Edge, A., Combes, F., …Voit, G. (2016). ALMA observations of cold molecular gas filaments trailing rising radio bubbles in PKS 0745-191. Monthly Notices of the Royal Astronomical Society, 458(3), 3134-3149. https://doi.org/10.1093/mnras/stw409

We present ALMA observations of the CO(1-0) and CO(3-2) line emission tracing filaments of cold molecular gas in the central galaxy of the cluster PKS 0745-191. The total molecular gas mass of 4.6 ± 0.3 × 109 M⊙, assuming a Galactic XCO factor, is di... Read More about ALMA observations of cold molecular gas filaments trailing rising radio bubbles in PKS 0745-191.

Galaxy And Mass Assembly (GAMA): Panchromatic Data Release (far-UV-far-IR) and the low-z energy budget (2015)
Journal Article
Driver, S. P., Wright, A. H., Andrews, S. K., Davies, L. J., Kafle, P. R., Lange, R., …Williams, R. (2016). Galaxy And Mass Assembly (GAMA): Panchromatic Data Release (far-UV-far-IR) and the low-z energy budget. Monthly Notices of the Royal Astronomical Society, 455(4), 3911-3942. https://doi.org/10.1093/mnras/stv2505

We present the Galaxy And Mass Assembly (GAMA) Panchromatic Data Release (PDR) constituting over 230 deg2 of imaging with photometry in 21 bands extending from the far-UV to the far-IR. These data complement our spectroscopic campaign of over 300k ga... Read More about Galaxy And Mass Assembly (GAMA): Panchromatic Data Release (far-UV-far-IR) and the low-z energy budget.

Dynamical analysis of galaxy cluster merger Abell 2146 (2015)
Journal Article
White, J., Canning, R., King, L., Lee, B., Russell, H., Baum, S., …Sanders, J. (2015). Dynamical analysis of galaxy cluster merger Abell 2146. Monthly Notices of the Royal Astronomical Society, 453(3), 2718-2730. https://doi.org/10.1093/mnras/stv1831

We present a dynamical analysis of the merging galaxy cluster system Abell 2146 using spectroscopy obtained with the Gemini Multi-Object Spectrograph on the Gemini North telescope. As revealed by the Chandra X-ray Observatory, the system is undergoin... Read More about Dynamical analysis of galaxy cluster merger Abell 2146.

High radio-frequency properties and variability of brightest cluster galaxies (2015)
Journal Article
Hogan, M., Edge, A., Geach, J., Grainge, K., Hlavacek-Larrondo, J., Hovatta, T., …Saunders, R. (2015). High radio-frequency properties and variability of brightest cluster galaxies. Monthly Notices of the Royal Astronomical Society, 453(2), 1223-1240. https://doi.org/10.1093/mnras/stv1518

We consider the high radio-frequency (15–353 GHz) properties and variability of 35 brightest cluster galaxies (BCGs). These are the most core-dominated sources drawn from a parent sample of more than 700 X-ray selected clusters, thus allowing us to r... Read More about High radio-frequency properties and variability of brightest cluster galaxies.

Deep Chandra, HST-COS, and Megacam Observations of the Phoenix Cluster: Extreme Star Formation and AGN Feedback on Hundred Kiloparsec Scales (2015)
Journal Article
McDonald, M., McNamara, B., van Weeren, R., Applegate, D., Bayliss, M., Bautz, M., …ZuHone, J. (2015). Deep Chandra, HST-COS, and Megacam Observations of the Phoenix Cluster: Extreme Star Formation and AGN Feedback on Hundred Kiloparsec Scales. Astrophysical Journal, 811(2), https://doi.org/10.1088/0004-637x/811/2/111

We present new ultraviolet, optical, and X-ray data on the Phoenix galaxy cluster (SPT-CLJ2344-4243). Deep optical imaging reveals previously undetected filaments of star formation, extending to radii of ~50–100 kpc in multiple directions. Combined U... Read More about Deep Chandra, HST-COS, and Megacam Observations of the Phoenix Cluster: Extreme Star Formation and AGN Feedback on Hundred Kiloparsec Scales.

Early Science with the Large Millimeter Telescope: observations of dust continuum and CO emission lines of cluster-lensed submillimetre galaxies at z=2.0-4.7 (2015)
Journal Article
Zavala, J., Yun, M., Aretxaga, I., Hughes, D., Wilson, G., Geach, J., …Zeballos, M. (2015). Early Science with the Large Millimeter Telescope: observations of dust continuum and CO emission lines of cluster-lensed submillimetre galaxies at z=2.0-4.7. Monthly Notices of the Royal Astronomical Society, 452(2), 1140-1151. https://doi.org/10.1093/mnras/stv1351

We present Early Science observations with the Large Millimeter Telescope, AzTEC 1.1 mm continuum images and wide bandwidth spectra (73–111 GHz) acquired with the Redshift Search Receiver, towards four bright lensed submillimetre galaxies identified... Read More about Early Science with the Large Millimeter Telescope: observations of dust continuum and CO emission lines of cluster-lensed submillimetre galaxies at z=2.0-4.7.