Amelia Fraser-McKelvie
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View article: The GECKOS Survey: resolved, multiphase observations of mass loading and gas density in the galactic wind of NGC 4666
The GECKOS Survey: resolved, multiphase observations of mass loading and gas density in the galactic wind of NGC 4666 Open
We present a multiphase, resolved study of the galactic wind extending from the nearby starburst galaxy NGC 4666. For this, we use VLT/MUSE observations from the GECKOS program and H i data from the WALLABY survey. We identify both ionized…
View article: Simulating nearby disc galaxies on the main star formation sequence
Simulating nearby disc galaxies on the main star formation sequence Open
Recent hydrodynamical simulations of isolated barred disc galaxies have suggested a structural change in the distribution of the interstellar medium (ISM) around a stellar mass M * of 10 10 M ⊙ . In the higher-mass regime ( M ∗ ≥ 10 10 M ⊙…
View article: Multiphase Astrophysics to Unveil the Virgo Environment (MAUVE)
Multiphase Astrophysics to Unveil the Virgo Environment (MAUVE) Open
The Multiphase Astrophysics to Unveil the Virgo Environment (MAUVE) project is a multi-facility programme exploring how dense environments transform galaxies. Combining a VLT/MUSE P110 Large Programme and ALMA observations of 40 late- type…
View article: The circular velocity and halo mass functions of galaxies in the nearby Universe
The circular velocity and halo mass functions of galaxies in the nearby Universe Open
The circular velocity function (CVF) of galaxies is a fundamental test of the Lambda cold dark matter ($\Lambda$CDM) paradigm as it traces the variation of galaxy number densities with circular velocity ($v_{\rm {circ}}$), a proxy for dyna…
View article: The SAMI galaxy survey: on the importance of applying multiple selection criteria for finding Milky Way analogues
The SAMI galaxy survey: on the importance of applying multiple selection criteria for finding Milky Way analogues Open
Milky Way analogues (MWAs) provide an alternative insight into the various pathways that lead to the formation of disc galaxies with similar properties to the Milky Way (MW). In this study, we explore different selection techniques for ide…
View article: The SAMI Galaxy Survey: On the importance of applying multiple selection criteria for finding Milky Way Analogues
The SAMI Galaxy Survey: On the importance of applying multiple selection criteria for finding Milky Way Analogues Open
Milky Way Analogues (MWAs) provide an alternative insight into the various pathways that lead to the formation of disk galaxies with similar properties to the Milky Way. In this study, we explore different selection techniques for identify…
View article: MAUVE: A 6 kpc bipolar outflow launched from NGC 4383, one of the most HI-rich galaxies in the Virgo cluster
MAUVE: A 6 kpc bipolar outflow launched from NGC 4383, one of the most HI-rich galaxies in the Virgo cluster Open
Stellar feedback-driven outflows are important regulators of the gas-star formation cycle. However, resolving outflow physics requires high resolution observations that can only be achieved in very nearby galaxies, making suitable targets …
View article: MAUVE: a 6 kpc bipolar outflow launched from NGC 4383, one of the most H <scp>i</scp>-rich galaxies in the Virgo cluster
MAUVE: a 6 kpc bipolar outflow launched from NGC 4383, one of the most H <span>i</span>-rich galaxies in the Virgo cluster Open
Stellar feedback-driven outflows are important regulators of the gas–star formation cycle. However, resolving outflow physics requires high-resolution observations that can only be achieved in very nearby galaxies, making suitable targets …
View article: The SAMI galaxy survey: predicting kinematic morphology with logistic regression
The SAMI galaxy survey: predicting kinematic morphology with logistic regression Open
We use the SAMI (Sydney-AAO Multi-object Integral field spectrograph) galaxy survey to study the the kinematic morphology–density relation: the observation that the fraction of slow rotator galaxies increases towards dense environments. We…
View article: The Tully–Fisher relation from SDSS-MaNGA: physical causes of scatter and variation at different radii
The Tully–Fisher relation from SDSS-MaNGA: physical causes of scatter and variation at different radii Open
The stellar mass Tully–Fisher relation (STFR) and its scatter encode valuable information about the processes shaping galaxy evolution across cosmic time. However, we are still missing a proper quantification of the STFR slope and scatter …
View article: The Tully-Fisher relation from SDSS-MaNGA: Physical causes of scatter and variation at different radii
The Tully-Fisher relation from SDSS-MaNGA: Physical causes of scatter and variation at different radii Open
The stellar mass Tully-Fisher relation (STFR) and its scatter encode valuable information about the processes shaping galaxy evolution across cosmic time. However, we are still missing a proper quantification of the STFR slope and scatter …
View article: Different higher order kinematics between star-forming and quiescent galaxies based on the SAMI, MAGPI, and LEGA-C surveys
Different higher order kinematics between star-forming and quiescent galaxies based on the SAMI, MAGPI, and LEGA-C surveys Open
We present the first statistical study of spatially integrated non-Gaussian stellar kinematics spanning 7 Gyr in cosmic time. We use deep, rest-frame optical spectroscopy of massive galaxies (stellar mass $M_\star \gt 10^{10.5} \, \mathrm{…
View article: Ageing and quenching through the Ageing Diagram – II. Physical characterization of galaxies
Ageing and quenching through the Ageing Diagram – II. Physical characterization of galaxies Open
The connection between quenching mechanisms, which rapidly turn star-forming systems into quiescent, and the properties of the galaxy population remains difficult to discern. In this work we investigate the physical properties of MaNGA and…
View article: Ageing and Quenching through the ageing diagram II: physical characterization of galaxies
Ageing and Quenching through the ageing diagram II: physical characterization of galaxies Open
The connection between quenching mechanisms, which rapidly turn star-forming systems into quiescent, and the properties of the galaxy population remains difficult to discern. In this work we investigate the physical properties of MaNGA and…
View article: Different higher order kinematics between star-forming and quiescent galaxies based on the SAMI, MAGPI, and LEGA-C surveys
Different higher order kinematics between star-forming and quiescent galaxies based on the SAMI, MAGPI, and LEGA-C surveys Open
We present the first statistical study of spatially integrated non-Gaussian stellar kinematics spanning 7 Gyr in cosmic time. We use deep, rest-frame optical spectroscopy of massive galaxies (stellar mass $M_\star \gt 10^{10.5} \, \mathrm{…
View article: The SAMI survey: evidence for dynamical coupling of ionized gas and young stellar populations
The SAMI survey: evidence for dynamical coupling of ionized gas and young stellar populations Open
We explore local and global dynamical differences between the kinematics of ionized gas and stars in a sample of galaxies from Data Release 3 of the SAMI Galaxy Survey. We find better agreement between local (i.e. comparing on a spaxel-to-…
View article: The SAMI Survey: Evidence for dynamical coupling of ionised gas and young stellar populations
The SAMI Survey: Evidence for dynamical coupling of ionised gas and young stellar populations Open
We explore local and global dynamical differences between the kinematics of ionised gas and stars in a sample of galaxies from Data Release 3 of the SAMI Galaxy Survey. We find better agreement between local (i.e., comparing on a spaxel-to…
View article: SAMI-H <scp>i</scp>: the connection between global asymmetry in the ionized and neutral atomic hydrogen gas in galaxies
SAMI-H <span>i</span>: the connection between global asymmetry in the ionized and neutral atomic hydrogen gas in galaxies Open
Observations of the neutral atomic hydrogen (${\rm H\, {\small I}}$) gas in galaxies are predominantly spatially unresolved, in the form of a global ${\rm H\, {\small I}}$ spectral line. There has been substantial work on quantifying asymm…
View article: SAMI-HI: The HI view of the H$α$ Tully-Fisher relation and data release
SAMI-HI: The HI view of the H$α$ Tully-Fisher relation and data release Open
We present SAMI-HI, a survey of the atomic hydrogen content of 296 galaxies with integral field spectroscopy available from the SAMI Galaxy Survey. The sample spans nearly 4 dex in stellar mass ($M_\star = 10^{7.4}-10^{11.1}~ \rm M_\odot$)…
View article: SAMI-H <scp>i</scp>: The H <scp>i</scp> view of the Hα Tully–Fisher relation and data release
SAMI-H <span>i</span>: The H <span>i</span> view of the Hα Tully–Fisher relation and data release Open
We present SAMI-H i, a survey of the atomic hydrogen content of 296 galaxies with integral field spectroscopy available from the SAMI Galaxy Survey. The sample spans nearly 4 dex in stellar mass ($M_\star = 10^{7.4}-10^{11.1}~ \rm M_\odot$…
View article: The SAMI Galaxy Survey: physical drivers of stellar-gas kinematic misalignments in the nearby Universe
The SAMI Galaxy Survey: physical drivers of stellar-gas kinematic misalignments in the nearby Universe Open
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 from the SAMI Galaxy Survey, we compute global kinematic posi…
View article: Beyond Galaxy Bimodality: The Complex Interplay between Kinematic Morphology and Star Formation in the Local Universe
Beyond Galaxy Bimodality: The Complex Interplay between Kinematic Morphology and Star Formation in the Local Universe Open
It is generally assumed that galaxies are a bimodal population in both star formation and structure; star-forming galaxies are disks, while passive galaxies host large bulges or are entirely spheroidal. Here we test this scenario by presen…
View article: The SAMI Galaxy Survey: The third and final data release
The SAMI Galaxy Survey: The third and final data release Open
We have entered a new era where integral-field spectroscopic surveys of galaxies are sufficiently large to adequately sample large-scale structure over a cosmologically significant volume. This was the primary design goal of the SAMI Galax…
View article: Formation of S0s in extreme environments III: the role of environment in the formation pathways
Formation of S0s in extreme environments III: the role of environment in the formation pathways Open
It is well established that there are at least two main channels to form lenticular (or S0) galaxies. The first, which we name ‘faded spiral’ scenario, includes quenching events that led to consumption or removal of gas from a spiral proge…
View article: BUDDI-MaNGA II: the star-formation histories of bulges and discs of S0s
BUDDI-MaNGA II: the star-formation histories of bulges and discs of S0s Open
Many processes have been proposed to explain the quenching of star formation in spiral galaxies and their transformation into S0s. These processes affect the bulge and disc in different ways, and so by isolating the bulge and disc spectra,…
View article: The physical connection between central stellar surface density and stellar spin in SAMI and MaNGA nearby galaxies
The physical connection between central stellar surface density and stellar spin in SAMI and MaNGA nearby galaxies Open
The stellar surface density within the inner 1 kpc (Σ1) has become a popular tool for understanding the growth of galaxies and its connection with the quenching of star formation. The emerging picture suggests that building a central dense…
View article: The LEGA-C and SAMI galaxy surveys: quiescent stellar populations and the mass–size plane across 6 Gyr
The LEGA-C and SAMI galaxy surveys: quiescent stellar populations and the mass–size plane across 6 Gyr Open
We investigate changes in stellar population age and metallicity ([Z/H]) scaling relations for quiescent galaxies from intermediate redshift (0.60 ≤ $z$ ≤ 0.76) using the LEGA-C Survey to low redshift (0.014 ≤ $z$ ≤ 0.10) using the SAMI Ga…
View article: The SAMI Galaxy Survey: the drivers of gas and stellar metallicity differences in galaxies
The SAMI Galaxy Survey: the drivers of gas and stellar metallicity differences in galaxies Open
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 compare the stellar and gas-phase metallicities measured within …
View article: The SAMI Galaxy Survey: the drivers of gas and stellar metallicity differences in galaxies
The SAMI Galaxy Survey: the drivers of gas and stellar metallicity differences in galaxies Open
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 compare the stellar and gas-phase metallicities measured within …
View article: Galaxy Zoo: 3D – crowdsourced bar, spiral, and foreground star masks for MaNGA target galaxies
Galaxy Zoo: 3D – crowdsourced bar, spiral, and foreground star masks for MaNGA target galaxies Open
The challenge of consistent identification of internal structure in galaxies – in particular disc galaxy components like spiral arms, bars, and bulges – has hindered our ability to study the physical impact of such structure across large s…