activity
20102026
most citedGalaxy and Mass Assembly (GAMA): survey diagnostics and core data release

1.1k citations · 6.6k across the 53 of their papers we have counts for

collaborators

53 papers

astro-ph.GA2026

Hector Galaxy Survey: Falling in Between - Infalling Galaxies in the Midst of the Abell 3667 Merger

Oğuzhan Çakır, Matt Owers, Gabriella Quattropani +38

Whether cluster mergers enhance ram pressure stripping (RPS) and accelerate member galaxy evolution remains an open question. Here, we investigate galaxy populations in the nearby…

astro-ph.GA2026

Kinematic scaling of thin and thick discs from SAMI to NewHorizon

Sree Oh, J. K. Jang, Giulia Santucci +8

We revisit the relation between disc stellar mass and disc velocity dispersion (M_*-σ_e) and extend it to thin and thick subcomponents using orbit-based dynamical models of 161 SAM…

astro-ph.GA2026

Hector Galaxy Survey: Optical IFU and Chandra Reveal a Low-Luminosity AGN Behind Extended LINER Emission

Kyuseok Oh, Gabriella Quattropani, Pratyush Kumar Das +25

We present evidence that the Hector Galaxy Survey galaxy C901005481609968 (), which exhibits spatially extended LINER-like emission in optical integral-field spe…

astro-ph.GA2025

findAbar: how astronomers may perceive the bar in galaxies differently

Elizabeth J. Iles, Joss Bland-Hawthorn, Courtney Crawford +18

Bars are ubiquitous morphological features in the observed distribution of galaxies. There are similarly many methods for classifying these features and, without a strict theoretic…

astro-ph.GA2025★ 4 cited

Hector Galaxy Survey: Data Processing, Quality Control and Early Science

S. Oh, M. L. P. Gunawardhana, S. M. Croom +52

The Hector Galaxy Survey is a new optical integral field spectroscopy (IFS) survey currently using the AAT to observe up to 15,000 galaxies at low redshift (). The Hector…

astro-ph.GA2025

JADES NIRSpec Spectroscopy of GN-z11: Evidence for Wolf-Rayet contribution to stellar populations at 430 Myr after Big Bang?

Madusha L. P. Gunawardhana, Jarle Brinchmann, Scott Croom +3

We investigate the unusual emission line luminosity ratios observed in the JADES NIRSpec spectroscopy of GN-z11, which reveal exceptionally strong emission lines and a significant…

astro-ph.GA2022★ 249 cited

Galaxy And Mass Assembly (GAMA): Data Release 4 and the z < 0.1 total and z < 0.08 morphological galaxy stellar mass functions

Simon P. Driver, Sabine Bellstedt, Aaron S. G. Robotham +67

In Galaxy And Mass Assembly Data Release 4 (GAMA DR4), we make available our full spectroscopic redshift sample. This includes 248682 galaxy spectra, and, in combination with earli…

astro-ph.GA2020★ 17 cited

Metal-THINGS: On the metallicity and ionization of ULX sources in NGC 925

Maritza A. Lara-López, Igor A. Zinchenko, Leonid S. Pilyugin +13

We present an analysis of the optical properties of three Ultra Luminous X-ray (ULX) sources identified in NGC 925. We use Integral field unit data from the George Mitchel spectrog…

astro-ph.GA2020★ 9 cited

The MUSE-Faint survey: I. Spectroscopic evidence for a star cluster in Eridanus 2 and constraints on MACHOs as a constituent of dark matter

Sebastiaan L. Zoutendijk, Jarle Brinchmann, Leindert A. Boogaard +9

We aim to provide spectroscopic evidence regarding the nature of the putative star cluster in Eridanus 2 and to place constraints on the mass and abundance of massive astrophysical…

astro-ph.GA2019★ 16 cited

Stellar populations and physical properties of starbursts in the Antennae galaxy from self-consistent modelling of MUSE spectra

M. L. P. Gunawardhana, J. Brinchmann, P. M. Weilbacher +6

We have modelled the stellar and nebular continua and emission-line intensity ratios of massive stellar populations in the Antennae galaxy using high resolution and self-consistent…

astro-ph.GA2019★ 11 cited

Spatially resolved signature of quenching in star-forming galaxies

Salvatore Quai, Lucia Pozzetti, Michele Moresco +5

Understanding when, how and where star formation ceased (quenching) within galaxies is still a critical subject in galaxy evolution studies. Taking advantage of the new methodology…

astro-ph.GA2018★ 95 cited

The SAMI Galaxy Survey: Data Release Two with absorption-line physics value-added products

Nicholas Scott, Jesse van de Sande, Scott M. Croom +34

We present the second major release of data from the SAMI Galaxy Survey. Data Release Two includes data for 1559 galaxies, about 50% of the full survey. Galaxies included have a re…

astro-ph.GA2018★ 99 cited

The MUSE Hubble Ultra Deep Field Survey XI. Constraining the low-mass end of the stellar mass - star formation rate relation at

Leindert A. Boogaard, Jarle Brinchmann, Nicolas Bouché +16

Star-forming galaxies have been found to follow a relatively tight relation between stellar mass () and star formation rate (SFR), dubbed the `star formation sequence'. A tu…

astro-ph.GA2018★ 23 cited

Properties and redshift evolution of star-forming galaxies with high [OIII]/[OII] ratios with MUSE at 0.28<z<0.85

M. Paalvast, A. Verhamme, L. A. Straka +21

We present a study of the [OIII]5007/[OII]3727 (O32) ratios of star-forming galaxies drawn from MUSE data spanning a redshift range 0.28<z<0.85. Recently discovered Lyman continuum…

astro-ph.GA2017★ 8 cited

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…

astro-ph.GA2017★ 196 cited

Optical colours and spectral indices of EAGLE galaxies with 3D dust radiative transfer code SKIRT

James W. Trayford, Peter Camps, Tom Theuns +7

We present mock optical images, broad-band and H fluxes, and D4000 spectral indices for 30,145 galaxies from the EAGLE hydrodynamical simulation at redshift , modelling d…

astro-ph.CO2017★ 45 cited

Evidence against a supervoid causing the CMB Cold Spot

Ruari Mackenzie, Tom Shanks, Malcolm N. Bremer +5

We report the results of the 2dF-VST ATLAS Cold Spot galaxy redshift survey (2CSz) based on imaging from VST ATLAS and spectroscopy from 2dF AAOmega over the core of the CMB Cold S…

astro-ph.GA2017★ 13 cited

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.…

astro-ph.GA2016★ 42 cited

Galaxy And Mass Assembly (GAMA): Gas Fuelling of Spiral Galaxies in the Local Universe I. - The Effect of the Group Environment on Star Formation in Spiral Galaxies

M. W. Grootes, R. J. Tuffs, C. C. Popescu +20

Abridged - We quantify the effect of the galaxy group environment (for 12.5 < log(M_group/Msun) < 14.0) on the star formation rates of the (morphologically-selected) population of…

astro-ph.GA2016★ 63 cited

Galaxy And Mass Assembly (GAMA): Active Galactic Nuclei in Pairs of Galaxies

Yjan A. Gordon, Matt S. Owers, Kevin A. Pimbblet +14

There exist conflicting observations on whether or not the environment of broad and narrow line AGN differ and this consequently questions the validity of the AGN unification model…

astro-ph.GA2016★ 107 cited

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…

astro-ph.GA2016★ 22 cited

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-…

astro-ph.CO2016★ 21 cited

On the connection between the metal-enriched intergalactic medium and galaxies: an OVI-galaxy cross-correlation study at

Charles W. Finn, Simon L. Morris, Nicolas Tejos +10

We present new results on the auto- and cross-correlation functions of galaxies and OVI absorbers in a comoving volume at . We use a sample of 51,29…

astro-ph.GA2015★ 35 cited

The SAMI Galaxy Survey: Can we trust aperture corrections to predict star formation?

Samuel Nathan Richards, Julia Bryant, Scott Croom +21

In the low redshift Universe (z<0.3), our view of galaxy evolution is primarily based on fibre optic spectroscopy surveys. Elaborate methods have been developed to address aperture…