Vivienne Wild
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View article: Linking enhanced star formation and quenching to faint tidal features in galaxies
Linking enhanced star formation and quenching to faint tidal features in galaxies Open
Galaxy mergers and interactions have long been suggested as a significant driver of galaxy evolution. However, the exact extent to which mergers enhance star formation and AGN activity has been challenging to establish observationally. In …
View article: PRIMER and JADES reveal an abundance of massive quiescent galaxies at <b> 2 &lt; <i>z</i> &lt; 5 </b>
PRIMER and JADES reveal an abundance of massive quiescent galaxies at <b> 2 < <i>z</i> < 5 </b> Open
We select a mass-complete sample of 225 quiescent galaxies at $z>2$ with $M_*>10^{10}\, \mathrm{M}_\odot$ from PRIMER and JADES photometry spanning a total area of $\simeq 320$ sq. arcmin. Our analysis is restricted to only area with…
View article: The JWST EXCELS survey: Insights into the nature of quenching at cosmic noon
The JWST EXCELS survey: Insights into the nature of quenching at cosmic noon Open
We study 24 massive quiescent galaxies with $\log \textrm{M}_*/\textrm{M}_\odot > 10$ at $1 < z < 3$ with JWST/NIRSpec medium-resolution observations from the Early eXtragalactic Continuum and Emission Line Survey (EXCELS). We reconstruct …
View article: Stellar populations of quasar host galaxies with MFICA decomposition
Stellar populations of quasar host galaxies with MFICA decomposition Open
Galaxy evolution theories require co-evolution between accreting supermassive black holes (SMBH) and galaxies to explain many properties of the local galaxy population, yet observational evidence for the mechanisms driving this co-evolutio…
View article: Stellar populations of quasar host galaxies with MFICA decomposition
Stellar populations of quasar host galaxies with MFICA decomposition Open
Galaxy evolution theories require co-evolution between accreting supermassive black holes (SMBH) and galaxies to explain many properties of the local galaxy population, yet observational evidence for the mechanisms driving this co-evolutio…
View article: The diverse quenching pathways of post-starburst galaxies in SDSS-IV MaNGA
The diverse quenching pathways of post-starburst galaxies in SDSS-IV MaNGA Open
The quenching of star formation in galaxies is an important aspect of galaxy evolution, but the physical mechanisms that drive it are still not understood. Measuring the spatial distribution of quenching can help determine these mechanisms…
View article: PRIMER & JADES reveal an abundance of massive quiescent galaxies at 2 < z < 5
PRIMER & JADES reveal an abundance of massive quiescent galaxies at 2 < z < 5 Open
We select a mass-complete sample of 225 quiescent galaxies at $z>2$ with $M_* > 10^{10}\ \mathrm{M}_\odot$ from PRIMER and JADES photometry spanning a total area of $\simeq320$ sq. arcmin. We restrict our analysis to only area with optical…
View article: Low redshift post-starburst galaxies host abundant HI reservoirs
Low redshift post-starburst galaxies host abundant HI reservoirs Open
Studying the gas content of post-starburst (PSB) galaxies can provide valuable clues regarding the process of fast quenching. Although previous works have studied the molecular gas content of PSBs, only a handful of HI measurements exist. …
View article: The competing effects of recent and long-term star formation histories on oxygen, nitrogen, and stellar metallicities
The competing effects of recent and long-term star formation histories on oxygen, nitrogen, and stellar metallicities Open
The fundamental metallicity relation (FMR) – the three-way trend between galaxy stellar masses, star-formation rates (SFRs) and gaseous metallicities – remains amongst the most studied extragalactic relations. Furthermore, metallicity corr…
View article: The competing effects of recent and long-term star formation histories on oxygen, nitrogen, and stellar metallicities
The competing effects of recent and long-term star formation histories on oxygen, nitrogen, and stellar metallicities Open
The fundamental metallicity relation (FMR) - the three-way trend between galaxy stellar masses, star-formation rates (SFRs) and gaseous metallicities - remains amongst the most studied extragalactic relations. Furthermore, metallicity corr…
View article: No evidence for excess AGN activity in recently quenched massive galaxies at cosmic noon
No evidence for excess AGN activity in recently quenched massive galaxies at cosmic noon Open
We present an analysis of AGN activity within recently quenched massive galaxies at cosmic noon ($z\sim 2$), using deep Chandra X-ray observations of the Ultra-Deep Survey (UDS) field. Our sample includes over 4000 massive galaxies ($M_\as…
View article: An Intervention Addressing Impostor Phenomenon in Undergraduate Physics and Astronomy
An Intervention Addressing Impostor Phenomenon in Undergraduate Physics and Astronomy Open
The experience of the impostor phenomenon, when a person doubts themselves and believes that they are underqualified and do not belong in a position as a result, can be a challenge for undergraduate physics students. In a small-scale inter…
View article: The infrared luminosity of retired and post-starburst galaxies: A cautionary tale for star formation rate measurements
The infrared luminosity of retired and post-starburst galaxies: A cautionary tale for star formation rate measurements Open
In galaxies with significant ongoing star formation there is an impressively tight correlation between total infrared luminosity (L) and H luminosity (L), when H is properly corrected for stellar absorption and dust attenuation. This l…
View article: Galaxy evolution in the post-merger regime. II – Post-merger quenching peaks within 500 Myr of coalescence
Galaxy evolution in the post-merger regime. II – Post-merger quenching peaks within 500 Myr of coalescence Open
Mechanisms for quenching star formation in galaxies remain hotly debated, with galaxy mergers an oft-proposed pathway. In Ellison et al. (2022) we tested this scenario by quantifying the fraction of recently and rapidly quenched post-starb…
View article: Inferring redshift and galaxy properties via a multi-task neural net with probabilistic outputs
Inferring redshift and galaxy properties via a multi-task neural net with probabilistic outputs Open
The era of large-scale astronomical surveys demands innovative approaches for rapid and accurate analysis of extensive spectral data, and a promising direction in which to address this challenge is offered by machine learning. Here, we int…
View article: High-velocity outflows persist up to 1 Gyr after a starburst in recently quenched galaxies at z &gt; 1
High-velocity outflows persist up to 1 Gyr after a starburst in recently quenched galaxies at z > 1 Open
High-velocity outflows are ubiquitous in star-forming galaxies at cosmic noon, but are not as common in passive galaxies at the same epoch. Using optical spectra of galaxies selected from the UKIDSS Ultra Deep Survey at $z\gt 1$, we perfor…
View article: Inferring redshift and galaxy properties via a multi-task neural net with probabilistic outputs: An application to simulated MOONS spectra
Inferring redshift and galaxy properties via a multi-task neural net with probabilistic outputs: An application to simulated MOONS spectra Open
The era of large-scale astronomical surveys demands innovative approaches for rapid and accurate analysis of extensive spectral data, and a promising direction in which to address this challenge is offered by machine learning. Here, we int…
View article: Galaxy evolution in the post-merger regime. II -- Post-merger quenching peaks within 500 Myr of coalescence
Galaxy evolution in the post-merger regime. II -- Post-merger quenching peaks within 500 Myr of coalescence Open
(Abridged) Mechanisms for quenching star formation in galaxies remain hotly debated, with galaxy mergers an oft-proposed pathway. In Ellison et al. (2022) we tested this scenario by quantifying the fraction of recently and rapidly quenched…
View article: The infrared luminosity of retired and post-starburst galaxies: A cautionary tale for star formation rate measurements
The infrared luminosity of retired and post-starburst galaxies: A cautionary tale for star formation rate measurements Open
In galaxies with significant ongoing star formation there is an impressively tight correlation between total infrared luminosity (L$_{TIR}$) and H$α$ luminosity (L$_{Hα}$), when H$α$ is properly corrected for stellar absorption and dust at…
View article: The <i>JWST</i> EXCELS survey: too much, too young, too fast? Ultra-massive quiescent galaxies at 3 &lt; z &lt; 5
The <i>JWST</i> EXCELS survey: too much, too young, too fast? Ultra-massive quiescent galaxies at 3 < z < 5 Open
We report ultra-deep, medium-resolution spectroscopic observations for four quiescent galaxies with log$_{10}(M_*/\mathrm{M_\odot })\gt 11$ at $3 \lt z \lt 5$. These data were obtained with JWST NIRSpec as part of the Early eXtragalactic C…
View article: A tight N/O–potential relation in star-forming galaxies
A tight N/O–potential relation in star-forming galaxies Open
We report a significantly tighter trend between gaseous N/O and $M_*/R_\mathrm{ e}$ (a proxy for gravitational potential) than has previously been reported between gaseous metallicity and $M_*/R_\mathrm{ e}$, for star-forming galaxies in t…
View article: A tight N/O-potential relation in star-forming galaxies
A tight N/O-potential relation in star-forming galaxies Open
We report a significantly tighter trend between gaseous N/O and $M_*/R_e$ (a proxy for gravitational potential) than has previously been reported between gaseous metallicity and $M_*/R_e$, for star-forming galaxies in the MaNGA survey. We …
View article: The JWST EXCELS survey: Too much, too young, too fast? Ultra-massive quiescent galaxies at 3 < z < 5
The JWST EXCELS survey: Too much, too young, too fast? Ultra-massive quiescent galaxies at 3 < z < 5 Open
We report ultra-deep, medium-resolution spectroscopic observations for 4 quiescent galaxies with log$_{10}(M_*/\mathrm{M_\odot})>11$ at $3 < z < 5$. These data were obtained with JWST NIRSpec as part of the Early eXtragalactic Continuum an…
View article: Correction to: Chemical evolution of local post-starburst galaxies: Implications for the mass-metallicity relation
Correction to: Chemical evolution of local post-starburst galaxies: Implications for the mass-metallicity relation Open
Chemical evolution of local post-starburst galaxies: Implications for the mass-metallicity
View article: Chemical evolution of local post-starburst galaxies: implications for the mass–metallicity relation
Chemical evolution of local post-starburst galaxies: implications for the mass–metallicity relation Open
We use the stellar fossil record to constrain the stellar metallicity evolution and star-formation histories of the post-starburst (PSB) regions within 45 local PSB galaxies from the MaNGA survey. The direct measurement of the regions’ ste…
View article: SDSS-IV MaNGA: how do star formation histories affect gas-phase abundances?
SDSS-IV MaNGA: how do star formation histories affect gas-phase abundances? Open
Gas-phase abundances in galaxies are the products of those galaxies’ evolutionary histories. The star formation history (SFH) of a region might therefore be expected to influence that region’s present day gaseous abundances. Here, we emplo…
View article: SDSS-IV MaNGA: how do star-formation histories affect gas-phase abundances?
SDSS-IV MaNGA: how do star-formation histories affect gas-phase abundances? Open
Gas-phase abundances in galaxies are the products of those galaxies' evolutionary histories. The star-formation history (SFH) of a region might therefore be expected to influence that region's present day gaseous abundances. Here, we emplo…
View article: Chemical evolution of local post-starburst galaxies: Implications for the mass-metallicity relation
Chemical evolution of local post-starburst galaxies: Implications for the mass-metallicity relation Open
We use the stellar fossil record to constrain the stellar metallicity evolution and star-formation histories of the post-starburst (PSB) regions within 45 local post-starburst galaxies from the MaNGA survey. The direct measurement of the r…
View article: Gender and the Social Cure in Undergraduate Physics Students: Physics Identity, Self-efficacy, Belonging, and Wellbeing
Gender and the Social Cure in Undergraduate Physics Students: Physics Identity, Self-efficacy, Belonging, and Wellbeing Open
The social cure is the concept that strong connections and social bonds are good for wellbeing and physical health. Having strong social support makes hardship easier to cope with. We hypothesize that we could apply the relationship to edu…
View article: A massive quiescent galaxy at redshift 4.658
A massive quiescent galaxy at redshift 4.658 Open
The extremely rapid assembly of the earliest galaxies during the first billion years of cosmic history is a major challenge for our understanding of galaxy formation physics 1–5 . The advent of the James Webb Space Telescope (JWST) has exa…