Publications (133)
Galaxy and Mass Assembly (GAMA): survey diagnostics and core data release
S. P. Driver, D. T. Hill, L. S. Kelvin +52
The Galaxy And Mass Assembly (GAMA) survey has been operating since February 2008 on the 3.9-m Anglo-Australian Telescope using the AAOmega fibre-fed spectrograph facility to acqui…
The SAMI Galaxy Survey: energy sources of the turbulent velocity dispersion in spatially-resolved local star-forming galaxies
Luwenjia Zhou, Christoph Federrath, Tiantian Yuan +16
We investigate the energy sources of random turbulent motions of ionised gas from H emission in eight local star-forming galaxies from the Sydney-AAO Multi-object Integral fiel…
Herschel-ATLAS/GAMA: a census of dust in optically selected galaxies from stacking at submillimetre wavelengths
N. Bourne, S. J. Maddox, L. Dunne +42
We use the Herschel-ATLAS survey to conduct the first large-scale statistical study of the submm properties of optically selected galaxies. Using ~80,000 r-band selected galaxies f…
Galaxy And Mass Assembly (GAMA): growing up in a bad neighbourhood - how do low-mass galaxies become passive?
L. J. M. Davies, A. S. G. Robotham, S. P. Driver +13
Both theoretical predictions and observations of the very nearby Universe suggest that low-mass galaxies (log[M/M]<9.5) are likely to remain star-forming unl…
Galaxy And Mass Assembly (GAMA): Linking Star Formation Histories and Stellar Mass Growth
Amanda E. Bauer, A. M. Hopkins, M. Gunawardhana +23
We present evidence for stochastic star formation histories in low-mass (M* < 10^10 Msun) galaxies from observations within the Galaxy And Mass Assembly (GAMA) survey. For ~73,000…
Galaxy and Mass Assembly (GAMA): Colour and luminosity dependent clustering from calibrated photometric redshifts
L. Christodoulou, C. Eminian, J. Loveday +31
We measure the two-point angular correlation function of a sample of 4,289,223 galaxies with r < 19.4 mag from the Sloan Digital Sky Survey as a function of photometric redshift, a…
The XXL Survey XLV. Linking the ages of optically selected groups to their X-ray emission
J. P. Crossett, S. L. McGee, T. J. Ponman +16
We investigate the properties of 232 optical spectroscopically selected groups from the Galaxy And Mass Assembly (GAMA) survey that overlap the XXL X-ray cluster survey. X-ray aper…
Galaxy And Mass Assembly (GAMA): Resolving the role of environment in galaxy evolution
S. Brough, S. Croom, R. Sharp +18
We present observations of 18 galaxies from the Galaxy And Mass Assembly (GAMA) survey made with the SPIRAL optical integral field unit (IFU) on the Anglo-Australian Telescope. The…
The SAMI Galaxy Survey: the intrinsic shape of kinematically selected galaxies
C. Foster, J. van de Sande, F. D'Eugenio +17
Using the stellar kinematic maps and ancillary imaging data from the Sydney AAO Multi Integral field (SAMI) Galaxy Survey, the intrinsic shape of kinematically-selected samples of…
The SAMI Galaxy Survey: Spatially resolving the environmental quenching of star formation in GAMA galaxies
A. L. Schaefer, S. M. Croom, J. T. Allen +32
We use data from the Sydney-AAO Multi-Object Integral Field Spectrograph (SAMI) Galaxy Survey and the Galaxy And Mass Assembly (GAMA) survey to investigate the spatially-resolved s…
Galaxy And Mass Assembly (GAMA): Galaxy environments and star formation rate variations
D. B. Wijesinghe, A. M. Hopkins, S. Brough +23
We present a detailed investigation into the effects of galaxy environment on their star formation rates (SFR) using galaxies observed in the Galaxy and Mass Assembly Survey (GAMA)…
Galaxy And Mass Assembly (GAMA): In Search of Milky-Way Magellanic Cloud Analogues
A. S. G. Robotham, I. K. Baldry, J. Bland-Hawthorn +13
Analysing all Galaxy and Mass Assembly (GAMA) galaxies within a factor two (+/- 0.3 dex) of the stellar mass of the Milky Way (MW), there is a 11.9% chance that one of these galaxi…
The SAMI Galaxy Survey: Kinematics of stars and gas in brightest group galaxies; the role of group dynamics
Mojtaba Raouf, Rory Smith, Habib G. Khosroshahi +17
We study the stellar and gas kinematics of the brightest group galaxies (BGGs) in dynamically relaxed and unrelaxed galaxy groups for a sample of 154 galaxies in the SAMI galaxy su…
Photometric redshifts for the Kilo-Degree Survey. Machine-learning analysis with artificial neural networks
M. Bilicki, H. Hoekstra, M. J. I. Brown +24
We present a machine-learning photometric redshift analysis of the Kilo-Degree Survey Data Release 3, using two neural-network based techniques: ANNz2 and MLPQNA. Despite limited c…
Galaxy And Mass Assembly (GAMA): The galaxy stellar mass function at z < 0.06
I. K. Baldry, S. P. Driver, J. Loveday +18
We determine the low-redshift field galaxy stellar mass function (GSMF) using an area of 143 deg^2 from the first three years of the Galaxy And Mass Assembly (GAMA) survey. The mag…
Galaxy And Mass Assembly (GAMA): The dependence of the galaxy luminosity function on environment, redshift and colour
Tamsyn McNaught-Roberts, Peder Norberg, Carlton Baugh +9
We use 80922 galaxies in the Galaxy And Mass Assembly (GAMA) survey to measure the galaxy luminosity function (LF) in different environments over the redshift range 0.04<z<0.26. Th…
Galaxy And Mass Assembly (GAMA): The 0.013 < z < 0.1 cosmic spectral energy distribution from 0.1 micron to 1mm
S. P. Driver, A. S. G. Robotham, L. Kelvin +40
We use the GAMA I dataset combined with GALEX, SDSS and UKIDSS imaging to construct the low-redshift (z<0.1) galaxy luminosity functions in FUV, NUV, ugriz, and YJHK bands from wit…
Galaxy and Mass Assembly (GAMA): The GAMA Galaxy Group Catalogue (G3Cv1)
A. S. G. Robotham, P. Norberg, S. P. Driver +30
Using the complete GAMA-I survey covering ~142 sq. deg. to r=19.4, of which ~47 sq. deg. is to r=19.8, we create the GAMA-I galaxy group catalogue (G3Cv1), generated using a friend…
The SAMI Galaxy Survey: gas content and interaction as the drivers of kinematic asymmetry
J. V. Bloom, S. M. Croom, J. J. Bryant +21
In order to determine the causes of kinematic asymmetry in the H gas in the SAMI Galaxy Survey sample, we investigate the comparative influences of environment and intrinsic pr…
The SAMI Galaxy Survey: The role of disc fading and progenitor bias in kinematic transitions
S. M. Croom, D. S. Taranu, J. van de Sande +16
We use comparisons between the SAMI Galaxy Survey and equilibrium galaxy models to infer the importance of disc fading in the transition of spirals into lenticular (S0) galaxies. T…
The SAMI Galaxy Survey: Global stellar populations on the size-mass plane
Nicholas Scott, S. Brough, Scott M. Croom +20
We present an analysis of the global stellar populations of galaxies in the SAMI Galaxy Survey. Our sample consists of 1319 galaxies spanning four orders of magnitude in stellar ma…
The SAMI Galaxy Survey: Asymmetry in Gas Kinematics and its links to Stellar Mass and Star Formation
J. V. Bloom, L. M. R. Fogarty, S. M. Croom +23
We study the properties of kinematically disturbed galaxies in the SAMI Galaxy Survey using a quantitative criterion, based on kinemetry (Krajnovic et al.). The approach, similar t…
Long-term stability of fibre-optic transmission for multi-object spectroscopy
R. Sharp, S. Brough, R. D. Cannon
We present an analysis of the long-term stability of fibre-optic transmission properties for fibre optics in astronomy. Data from six years of operation of the AAOmega multi-object…
Galaxy And Mass Assembly (GAMA): Galaxies at the faint end of the Halpha luminosity function
S. Brough, A. M. Hopkins, R. G. Sharp +30
We present an analysis of the properties of the lowest Halpha-luminosity galaxies (L_Halpha<4x10^32 W; SFR<0.02 Msun/yr) in the Galaxy And Mass Assembly (GAMA) survey. These galaxi…
GAMA/H-ATLAS: The Dust Opacity - Stellar Mass Surface Density Relation for Spiral Galaxies
M. W. Grootes, R. J. Tuffs, C. C. Popescu +32
We report the discovery of a well-defined correlation between B-band face-on central optical depth due to dust, Ï^f_B, and the stellar mass surface density, μ_{*}, of nearby (z <…
Galaxy And Mass Assembly (GAMA): A deeper view of the mass, metallicity, and SFR relationships
M. A. Lara-Lopez, A. M. Hopkins, A. R. Lopez-Sanchez +18
A full appreciation of the role played by gas metallicity (Z), star-formation rate (SFR), and stellar mass is fundamental to understanding how galaxies form and evolve. The connect…
The SAMI Galaxy Survey: galaxy spin is more strongly correlated with stellar population age than mass or environment
S. M. Croom, J. van de Sande, S. P. Vaughan +17
We use the SAMI Galaxy Survey to examine the drivers of galaxy spin, , in a multi-dimensional parameter space including stellar mass, stellar population age (or specific…
Galaxy And Mass Assembly (GAMA): Defining Passive Galaxy Samples and Searching for the UV Upturn
S. Phillipps, S. S. Ali, M. N. Bremer +16
We use data from the GAMA and GALEX surveys to demonstrate that the UV upturn, an unexpected excess of ultraviolet flux from a hot stellar component, seen in the spectra of many ea…
Galaxy And Mass Assembly (GAMA): The Consistency of GAMA and WISE Derived Mass-to-Light Ratios
T. Kettlety, J. Hesling, S. Phillipps +11
Recent work has suggested that mid-IR wavelengths are optimal for estimating the mass-to-light ratios of stellar populations and hence the stellar masses of galaxies. We compare st…
Galaxy and Mass Assembly (GAMA): Demonstrating the power of WISE in the study of Galaxy Groups to
M. E. Cluver, T. H. Jarrett, E. N. Taylor +7
Combining high-fidelity group characterisation from the Galaxy and Mass Assembly (GAMA) survey and source-tailored photometry from the WISE survey, we present a comprehensi…
The SAMI Galaxy Survey: The discovery of a luminous, low-metallicity H II complex in the dwarf galaxy GAMA J141103.98-003242.3
S. N. Richards, A. L. Schaefer, A. R. Lopez-Sanchez +18
We present the discovery of a luminous unresolved H II complex on the edge of dwarf galaxy GAMA J141103.98-003242.3 using data from the Sydney-AAO Multi-object Integral field spect…
Tidal features as tracers of galaxy merger histories: the colours of tidal features in HSC-SSP
A. Desmons, S. Brough, L. Canepa +1
We measure the radial colour profiles of 32,000 galaxies drawn from the Hyper Suprime-Cam Subaru Strategic Program optical imaging survey, including 1415 exhibiting tid…
The SAMI Galaxy Survey: Observing the environmental quenching of star formation in GAMA groups
A. L. Schaefer, S. M. Croom, N. Scott +25
We explore the radial distribution of star formation in galaxies in the SAMI Galaxy Survey as a function of their local group environment. Using a sample of galaxies in groups (wit…
Galaxy And Mass Assembly (GAMA): The galaxy luminosity function within the cosmic web
E. Eardley, J. A. Peacock, T. McNaught-Roberts +12
We investigate the dependence of the galaxy luminosity function on geometric environment within the Galaxy And Mass Assembly (GAMA) survey. The tidal tensor prescription, based on…
Galaxy And Mass Assembly: Group and field galaxy morphologies in the star-formation rate - stellar mass plane
W. J. Pearson, L. Wang, S. Brough +3
We study the environment in which a galaxy lies (i.e. field or group) and its connection with the morphology of the galaxy. This is done by examining the distribution of parametric…
The SAMI Galaxy Survey: Early Data Release
J. T. Allen, S. M. Croom, I. S. Konstantopoulos +45
We present the Early Data Release of the Sydney-AAO Multi-object Integral field spectrograph (SAMI) Galaxy Survey. The SAMI Galaxy Survey is an ongoing integral field spectroscopic…
The SAMI Galaxy Survey: Satellite galaxies undergo little structural change during their quenching phase
L. Cortese, J. van de Sande, C. P. Lagos +9
At fixed stellar mass, satellite galaxies show higher passive fractions than centrals, suggesting that environment is directly quenching their star formation. Here, we investigate…
Modeling Strong Lenses from Wide-Field Ground-Based Observations in KiDS and GAMA
Shawn Knabel, B. W. Holwerda, J. Nightingale +13
Despite the success of galaxy-scale strong gravitational lens studies with Hubble-quality imaging, the number of well-studied strong lenses remains small. As a result, robust compa…
The SAMI Galaxy Survey: embedded discs and radial trends in outer dynamical support across the Hubble sequence
Caroline Foster, J. van de Sande, L. Cortese +11
We study the balance in dynamical support of 384 galaxies with stellar kinematics out to >1.5R_e in the Sydney AAO Multi-object Integral Field (SAMI) Galaxy Survey. We present radi…
Galaxy And Mass Assembly (GAMA): the G02 field, Herschel-ATLAS target selection and Data Release 3
I. K. Baldry, J. Liske, M. J. I. Brown +39
We describe data release 3 (DR3) of the Galaxy And Mass Assembly (GAMA) survey. The GAMA survey is a spectroscopic redshift and multi-wavelength photometric survey in three equator…
Spatially resolved kinematics and stellar populations of brightest cluster and group galaxies
S. Brough, R. Proctor, D. Forbes +4
We present an examination of the kinematics and stellar populations of a sample of 3 Brightest Group Galaxies (BGGs) and 3 Brightest Cluster Galaxies (BCGs) in X-ray groups and clu…
Galaxy And Mass Assembly (GAMA): end of survey report and data release 2
J. Liske, I. K. Baldry, S. P. Driver +67
The Galaxy And Mass Assembly (GAMA) survey is one of the largest contemporary spectroscopic surveys of low-redshift galaxies. Covering an area of ~286 deg^2 (split among five surve…
Galaxy And Mass Assembly (GAMA): The mechanisms for quiescent galaxy formation at
K. Rowlands, V. Wild, N. Bourne +14
One key problem in astrophysics is understanding how and why galaxies switch off their star formation, building the quiescent population that we observe in the local Universe. From…
Galaxy And Mass Assembly (GAMA): Bivariate functions of H star forming galaxies
M. L. P. Gunawardhana, A. M. Hopkins, E. N. Taylor +18
We present bivariate luminosity and stellar mass functions of H star forming galaxies drawn from the Galaxy And Mass Assembly (GAMA) survey. While optically deep spectroscopic…
Spatial kinematics of Brightest Cluster Galaxies and their close companions from Integral Field Unit spectroscopy
S. Brough, K. -V. Tran, R. G. Sharp +2
We present Integral Field Unit (IFU) spectroscopy of four brightest cluster galaxies (BCGs) at z~0.1. Three of the BCGs have close companions within a projected radius of 20 kpc an…
Galaxy and Mass Assembly (GAMA): maximum likelihood determination of the luminosity function and its evolution
J. Loveday, P. Norberg, I. K. Baldry +6
We describe modifications to the joint stepwise maximum likelihood method of Cole (2011) in order to simultaneously fit the GAMA-II galaxy luminosity function (LF), corrected for r…
Galaxy And Mass Assembly (GAMA): autoz spectral redshift measurements, confidence and errors
I. K. Baldry, M. Alpaslan, A. E. Bauer +17
The Galaxy And Mass Assembly (GAMA) survey has obtained spectra of over 230000 targets using the Anglo-Australian Telescope. To homogenise the redshift measurements and improve the…
Galaxy and Mass Assembly (GAMA): Probing the merger histories of massive galaxies via stellar populations
I. Ferreras, A. M. Hopkins, M. L. P. Gunawardhana +13
The merging history of galaxies can be traced with studies of dynamically close pairs. These consist of a massive primary galaxy and a less massive secondary (or satellite) galaxy.…
The SAMI Galaxy Survey: Kinematics of Dusty Early-Type Galaxies
Robert Bassett, K. Bekki, L. Cortese +19
Recently, large samples of visually classified early-type galaxies (ETGs) containing dust have been identified using space-based infrared observations with the Herschel Space Teles…
Galaxy And Mass Assembly (GAMA): The environmental dependence of the galaxy main sequence
L. Wang, P. Norberg, S. Brough +12
Aims. We aim to investigate if the environment (characterised by the host dark matter halo mass) plays any role in shaping the galaxy star formation main sequence (MS). Methods. Th…
Galaxy and Mass Assembly (GAMA): Exploring the WISE Cosmic Web in G12
T. H. Jarrett, M. E. Cluver, C. Magoulas +17
We present an analysis of the mid-infrared WISE sources seen within the equatorial GAMA G12 field, located in the North Galactic Cap. Our motivation is to study and characterize th…
The SAMI Galaxy Survey: Stellar population radial gradients in early-type galaxies
I. Ferreras, N. Scott, F. La Barbera +16
We study the internal radial gradients of the stellar populations in a sample comprising 522 early-type galaxies (ETGs) from the SAMI (Sydney- AAO Multi-object Integral field spect…
Galaxy And Mass Assembly (GAMA): The star formation rate dependence of the stellar initial mass function
M. L. P. Gunawardhana, A. M. Hopkins, R. G. Sharp +35
The stellar initial mass function (IMF) describes the distribution in stellar masses produced from a burst of star formation. For more than fifty years, the implicit assumption und…
The SAMI Galaxy Survey: Cubism and covariance, putting round pegs into square holes
R. Sharp, J. T. Allen, L. M. R. Fogarty +46
We present a methodology for the regularisation and combination of sparse sampled and irregularly gridded observations from fibre-optic multi-object integral-field spectroscopy. Th…
Galaxy And Mass Assembly (GAMA): the red fraction and radial distribution of satellite galaxies
Matthew Prescott, I. K. Baldry, P. A. James +31
We investigate the properties of satellite galaxies that surround isolated hosts within the redshift range 0.01 < z < 0.15, using data taken as part of the Galaxy And Mass Assembly…
Science Cases for the Keck Wide-Field Imager
J. Cooke, C. Angus, K. Auchettl +22
The Keck Wide-Field Imager (KWFI) is a proposed 1-degree diameter field of view UV-sensitive optical camera for Keck prime focus. KWFI will be the most powerful optical wide-field…
Galaxy And Mass Assembly (GAMA): Blue spheroids within 87 Mpc
Smriti Mahajan, Michael J. Drinkwater, S. Driver +7
In this paper we test if nearby blue spheroid (BSphs) galaxies may become the progenitors of star-forming spiral galaxies or passively-evolving elliptical galaxies. Our sample comp…
GAMA/H-ATLAS: Common star-formation rate indicators and their dependence on galaxy physical parameters
L. Wang, P. Norberg, M. L. P. Gunawardhana +30
We compare common star-formation rate (SFR) indicators in the local Universe in the GAMA equatorial fields (around 160 sq. deg.), using ultraviolet (UV) photometry from GALEX, far-…
Galaxy And Mass Assembly (GAMA): Spectroscopic analysis
A. M. Hopkins, S. P. Driver, S. Brough +79
The Galaxy And Mass Assembly (GAMA) survey is a multiwavelength photometric and spectroscopic survey, using the AAOmega spectrograph on the Anglo-Australian Telescope to obtain spe…
GAMA/H-ATLAS: The ultraviolet spectral slope and obscuration in galaxies
Dinuka B. Wijesinghe, Elisabete. da Cunha, Andrew. M. Hopkins +59
We use multiwavelength data from the Galaxy And Mass Assembly (GAMA) and Herschel ATLAS (H-ATLAS) surveys to compare the relationship between various dust obscuration measures in g…
The SAMI Galaxy Survey: the drivers of gas and stellar metallicity differences in galaxies
A. Fraser-McKelvie, L. Cortese, B. Groves +13
The combination of gas-phase oxygen abundances and stellar metallicities can provide us with unique insights into the metal enrichment histories of galaxies. In this work, we compa…
Intracluster light is a biased tracer of the dark matter distribution in clusters
J. Butler, G. Martin, N. A. Hatch +3
The diffuse stellar component of galaxy clusters known as intracluster light (ICL) has been proposed as an observable tracer of the cluster's dark matter (DM) halo. Assessing its r…
Galaxy And Mass Assembly (GAMA): The environments of high- and low- excitation radio galaxies
J. H. Y. Ching, S. M. Croom, E. M. Sadler +18
We study the environments of low- and high- excitation radio galaxies (LERGs and HERGs respectively) in the redshift range , using a sample of 399 radio galaxies an…
Analysing the prevalence of tidal features in HSC-SSP using self-supervised representation learning
A. Desmons, S. Brough, F. Lanusse +2
We use a combination of self-supervised machine learning and visual classification to identify tidal features in a sample of 34,331 galaxies with stellar masses $\log_{10}(M_{*}/\r…
A multi-wavelength exploration of the [CII]/IR ratio in H-ATLAS/GAMA galaxies out to z=0.2
E. Ibar, M. A. Lara-López, R. Herrera-Camus +23
We explore the behaviour of [CII]-157.74um forbidden fine-structure line observed in a sample of 28 galaxies selected from ~50deg^2 of the H-ATLAS survey. The sample is restricted…
Morphological Classification of Galaxies Through Structural and Star Formation Parameters Using Machine Learning
G. Aguilar-Argüello, G. Fuentes-Pineda, H. M. Hernández-Toledo +9
We employ the XGBoost machine learning (ML) method for the morphological classification of galaxies into two (early-type, late-type) and five (E, S0--S0a, Sa--Sb, Sbc--Scd, Sd--Irr…
Galaxy And Mass Assembly (GAMA): The unimodal nature of the dwarf galaxy population
Smriti Mahajan, Michael J. Drinkwater, S. Driver +9
In this paper we aim to (i) test the number of statistically distinct classes required to classify the local galaxy population, and, (ii) identify the differences in the physical a…
Connecting MeerKAT radio continuum properties to GAMA optical emission-line and WISE mid-infrared activity
H. F. M. Yao, M. E. Cluver, T. H. Jarrett +10
The identification of AGN in large surveys has been hampered by seemingly discordant classifications arising from differing diagnostic methods, usually tracing distinct processes s…
GAMA/H-ATLAS: A meta-analysis of SFR indicators - comprehensive measures of the SFR-M* relation and Cosmic Star Formation History at z < 0.4
L. J. M. Davies, S. P. Driver, A. S. G. Robotham +26
We present a meta-analysis of star-formation rate (SFR) indicators in the GAMA survey, producing 12 different SFR metrics and determining the SFR-M* relation for each. We compare a…
The SAMI Galaxy Survey: understanding observations of large-scale outflows at low redshift with EAGLE simulations
E. Tescari, L. Cortese, C. Power +23
This work presents a study of galactic outflows driven by stellar feedback. We extract main sequence disc galaxies with stellar mass MM$_{\odot} \le 5.7\times1…
Galaxy And Mass Assembly (GAMA): The Life and Times of L* Galaxies
A. S. G. Robotham, J. Liske, S. P. Driver +18
In this work we investigate in detail the effects local environment (groups and pairs) has on galaxies with stellar mass similar to the Milky-Way (L* galaxies). A volume limited sa…
Galaxy and Mass Assembly (GAMA): Accurate number densities & environments of massive ultracompact galaxies at 0.02 < z < 0.3
F. Buitrago, I. Ferreras, L. S. Kelvin +15
Massive Ultracompact Galaxies (MUGs) are common at z=2-3, but very rare in the nearby Universe. Simulations predict that the few surviving MUGs should reside in galaxy clusters, wh…
Galaxy And Mass Assembly (GAMA): Environmental Quenching of Centrals and Satellites in Groups
L. J. M. Davies, A. S. G. Robotham, C. del P. Lagos +16
Recently a number of studies have found a similarity between the passive fraction of central and satellite galaxies when controlled for both stellar and halo mass. These results su…
Evidence for Significant Growth in the Stellar Mass of Brightest Cluster Galaxies over the Past 10 Billion Years
C. Lidman, J. Suherli, A. Muzzin +17
Using new and published data, we construct a sample of 160 brightest cluster galaxies (BCGs) spanning the redshift interval 0.03 < z < 1.63. We use this sample, which covers 70% of…
Galaxy And Mass Assembly (GAMA): The M-Z relation for galaxy groups
M. A. Lara-Lopez, A. M. Hopkins, A. Robotham +7
The stellar mass and metallicity are among the fundamental parameters of galaxies. An understanding of the interplay between those properties as well as their environmental depende…
Herschel-ATLAS/GAMA: a difference between star-formation rates in strong-line and weak-line radio galaxies
M. J. Hardcastle, J. H. Y. Ching, J. S. Virdee +25
We have constructed a sample of radio-loud objects with optical spectroscopy from the Galaxy and Mass Assembly (GAMA) project over the Herschel-ATLAS Phase 1 fields. Classifying th…
ASKAP Commissioning Observations of the GAMA 23 Field
Denis A. Leahy, A. M. Hopkins, R. P. Norris +25
We have observed the G23 field of the Galaxy And Mass Assembly (GAMA) survey using the Australian Square Kilometre Array Pathfinder (ASKAP) in its commissioning phase, to validate…
Galaxy and Mass Assembly (GAMA): the clustering of galaxy groups
S. D. Riggs, R. W. Y. M. Barbhuiyan, J. Loveday +4
We explore the clustering of galaxy groups in the Galaxy and Mass Assembly (GAMA) survey to investigate the dependence of group bias and profile on separation scale and group mass.…
Galaxy And Mass Assembly (GAMA): detection of low-surface-brightness galaxies from SDSS data
R. P. Williams, I. K. Baldry, L. S. Kelvin +11
We report on a search for new low-surface-brightness galaxies (LSBGs) using Sloan Digital Sky Survey (SDSS) data within the GAMA equatorial fields. The search method consisted of m…
North Ecliptic Pole merging galaxy catalogue
W. J. Pearson, L. E. Suelves, S. C. -C. Ho +17
We aim to generate a catalogue of merging galaxies within the 5.4 sq. deg. North Ecliptic Pole over the redshift range . To do this, imaging data from the Hyper Supr…
Galaxy And Mass Assembly: The xSAGA Galaxy Complement in Nearby Galaxy Groups
B. W. Holwerda, S. Phillipps, S. Weerasooriya +5
Groups of galaxies are the intermediate density environment in which much of the evolution of galaxies is thought to take place. In spectroscopic redshift surveys, one can identify…
The SAMI Galaxy Survey: Physical drivers of stellar-gas kinematic misalignments in the nearby Universe
A. Ristea, L. Cortese, A. Fraser-McKelvie +10
Misalignments between the rotation axis of stars and gas are an indication of external processes shaping galaxies throughout their evolution. Using observations of 3068 galaxies fr…
The intragroup light in KiDS+GAMA groups: A stacking analysis
S. L. Ahad, H. Hoekstra, Y. M. Bahé +4
Galaxy groups and clusters assembled through dynamical interactions of smaller systems, resulting in the formation of a diffuse stellar halo known as the intragroup or intracluster…
Galaxy And Mass Assembly (GAMA): The connection between metals, specific-SFR, and HI gas in galaxies: the Z-SSFR relation
M. A. Lara-López, A. M. Hopkins, A. R. López-Sánchez +10
We study the interplay between gas phase metallicity (Z), specific star formation rate (SSFR) and neutral hydrogen gas (HI) for galaxies of different stellar masses. Our study uses…
The SAMI Galaxy Survey: Data Release One with Emission-line Physics Value-Added Products
Andrew W. Green, Scott M. Croom, Nicholas Scott +48
We present the first major release of data from the SAMI Galaxy Survey. This data release focuses on the emission-line physics of galaxies. Data Release One includes data for 772 g…
The SAMI Pilot Survey: The Kinematic Morphology-Density Relation in Abell 85, Abell 168 and Abell 2399
L. M. R. Fogarty, Nicholas Scott, Matt S. Owers +17
We examine the kinematic morphology of early-type galaxies (ETGs) in three galaxy clusters Abell 85, 168 and 2399. Using data from the Sydney-AAO Multi-object Integral field spectr…
Galaxy And Mass Assembly (GAMA): impact of the group environment on galaxy star formation
S. Barsanti, M. S. Owers, S. Brough +9
We explore how the group environment may affect the evolution of star-forming galaxies. We select 1197 Galaxy And Mass Assembly (GAMA) groups at and analyze t…
Neutral Hydrogen in Galaxy Groups
N. P. F. McKay, C. G. Mundell, S. Brough +2
We present preliminary results from a study of the neutral hydrogen (HI) properties of an X-ray selected sample of nearby loose galaxy groups. This forms part of a multi-wavelength…
Galaxy And Mass Assembly (GAMA): The Bright Void Galaxy Population in the Optical and Mid-IR
S. J. Penny, M. J. I. Brown, K. A. Pimbblet +22
We examine the properties of galaxies in the Galaxies and Mass Assembly (GAMA) survey located in voids with radii Mpc. Utilising the GAMA equatorial survey, 592 void g…
Galaxy And Mass Assembly (GAMA): Properties and evolution of red spiral galaxies
Smriti Mahajan, Kriti Kamal Gupta, Rahul Rana +10
We use multi-wavelength data from the Galaxy and Mass Assembly (GAMA) survey to explore the cause of red optical colours in nearby (0.002<z<0.06) spiral galaxies. We show that the…
The MAGPI Survey: Drivers of kinematic asymmetries in the ionised gas of star-forming galaxies
R. S. Bagge, C. Foster, A. Battisti +17
Galaxy gas kinematics are sensitive to the physical processes that contribute to a galaxy's evolution. It is expected that external processes will cause more significant kinematic…
The SAMI Galaxy Survey: Disk-halo interactions in radio-selected star-forming galaxies
S. K. Leslie, J. J. Bryant, I. -T. Ho +20
In this paper, we compare the radio emission at 1.4 GHz with optical outflow signatures of edge-on galaxies. We report observations of six edge-on star-forming galaxies in the Sydn…
Preparing for low surface brightness science with the Vera C. Rubin Observatory: characterisation of tidal features from mock images
G. Martin, A. E. Bazkiaei, M. Spavone +50
Tidal features in the outskirts of galaxies yield unique information about their past interactions and are a key prediction of the hierarchical structure formation paradigm. The Ve…
Galaxy and Mass Assembly (GAMA): A study of the activity of emission-line systems in G23
H. F. M. Yao, T. H. Jarrett, M. E. Cluver +12
We present a detailed study of emission-line systems in the GAMA G23 region, making use of photometry that includes carefully measured resolved sources. After apply…
H-ATLAS/GAMA: Dusty early-type galaxies and passive spirals
K. Rowlands, L. Dunne, S. Maddox +38
We present the dust properties and star-formation histories of local submillimetre-selected galaxies in Herschel-ATLAS, classified by optical morphology. The early-type galaxies (E…
Galaxy And Mass Assembly (GAMA): the effect of close interactions on star formation in galaxies
L. J. M. Davies, A. S. G. Robotham, S. P. Driver +25
The modification of star formation (SF) in galaxy interactions is a complex process, with SF observed to be both enhanced in major mergers and suppressed in minor pair interactions…
Galaxy And Mass Assembly (GAMA): The sSFR-M* relation part I - -M* as a function of sample, SFR indicator and environment
L. J. M. Davies, C. del P. Lagos, A. Katsianis +11
Recently a number of studies have proposed that the dispersion along the star formation rate - stellar mass relation (-M) is indicative of variations in s…
The SAMI Pilot Survey: Stellar Kinematics of Galaxies in Abell 85, 168 and 2399
L. M. R. Fogarty, N. Scott, M. S. Owers +22
We present the SAMI Pilot Survey, consisting of integral field spectroscopy of 106 galaxies across three galaxy clusters, Abell 85, Abell 168 and Abell 2399. The galaxies were sele…
H-ATLAS/GAMA: The nature and characteristics of optically red galaxies detected at submillimetre wavelengths
A. Dariush, S. Dib, S. Hony +39
We combine Herschel/SPIRE sub-millimeter (submm) observations with existing multi-wavelength data to investigate the characteristics of low redshift, optically red galaxies detecte…
Centrally concentrated molecular gas driving galactic-scale ionised gas outflows in star-forming galaxies
L. M. Hogarth, A. Saintonge, L. Cortese +16
We perform a joint-analysis of high spatial resolution molecular gas and star-formation rate (SFR) maps in main-sequence star-forming galaxies experiencing galactic-scale outflows…