Anna C. Wright
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View article: Figuring Out Gas & Galaxies In Enzo (FOGGIE). XIII. On the Observability of Extended HI Disks and Warps
Figuring Out Gas & Galaxies In Enzo (FOGGIE). XIII. On the Observability of Extended HI Disks and Warps Open
Atomic Hydrogen (HI) is a useful tracer of gas in and around galaxies, and can be found in extended disk-like structures well beyond a system's optical extent. Here we investigate the properties of extended HI disks that emerge in six Milk…
View article: Figuring Out Gas & Galaxies In Enzo (FOGGIE). XII. The Formation and Evolution of Extended HI Galactic Disks and Warps with a Dynamic CGM
Figuring Out Gas & Galaxies In Enzo (FOGGIE). XII. The Formation and Evolution of Extended HI Galactic Disks and Warps with a Dynamic CGM Open
Atomic Hydrogen (HI) is an important component of gas in and around galaxies and forms extended disk-like structures well beyond the extent of starlight. Here we investigate the properties and evolution of extended HI disks that emerge in …
View article: Disk Formation and the Size-sSFR Relation of Dwarf Galaxies
Disk Formation and the Size-sSFR Relation of Dwarf Galaxies Open
Dwarf galaxies are dark matter-dominated systems that are sensitive to feedback and display a diversity of baryonic morphologies. This makes them excellent probes for understanding dark matter and galaxy evolution. This work investigates t…
View article: Figuring Out Gas & Galaxies In Enzo (FOGGIE) XI: Circumgalactic O VI Emission Traces Clumpy Inflowing Recycled Gas
Figuring Out Gas & Galaxies In Enzo (FOGGIE) XI: Circumgalactic O VI Emission Traces Clumpy Inflowing Recycled Gas Open
The circumgalactic medium (CGM) is host to gas flows into and out of galaxies and regulates galaxy growth, but the multiphase, diffuse gas in this region is challenging to observe. We investigate the properties of gas giving rise to O VI e…
View article: FOGGIE. X. Characterizing the Small-scale Structure of the Circumgalactic Medium and Its Imprint on Observables
FOGGIE. X. Characterizing the Small-scale Structure of the Circumgalactic Medium and Its Imprint on Observables Open
One of the main unknowns in galaxy evolution is how gas flows into and out of galaxies in the circumgalactic medium (CGM). Studies observing the CGM in absorption using multiple or extended background objects suggest a high degree of varia…
View article: Survivors and Zombies: The Quenching and Disruption of Satellites Around Milky Way Analogs
Survivors and Zombies: The Quenching and Disruption of Satellites Around Milky Way Analogs Open
It is necessary to understand the full accretion history of the Milky Way in order to contextualize the properties of observed Milky Way satellite galaxies and the stellar halo. This paper compares the dynamical properties and star formati…
View article: Are Gas-rich Ultra-diffuse Galaxies and Field Dwarfs Distinct?
Are Gas-rich Ultra-diffuse Galaxies and Field Dwarfs Distinct? Open
We explore the differences in gas-rich field ultra-diffuse galaxies (UDGs) and diffuse classical dwarf galaxies using an extensive atomic gas (H I ) follow-up survey of optically selected UDG candidates from the Systematically Measuring Ul…
View article: Figuring Out Gas and Galaxies in Enzo (FOGGIE). IX. The Angular Momentum Evolution of Milky Way–like Galaxies and Their Circumgalactic Gas
Figuring Out Gas and Galaxies in Enzo (FOGGIE). IX. The Angular Momentum Evolution of Milky Way–like Galaxies and Their Circumgalactic Gas Open
We investigate the coevolution of the angular momentum of Milky Way–like galaxies, their circumgalactic gas, and their dark matter halos using zoom-in simulations from the Figuring Out Gas and Galaxies in Enzo suite. We examine how the mag…
View article: Figuring Out Gas and Galaxies In Enzo (FOGGIE). VIII. Complex and Stochastic Metallicity Gradients at z > 2
Figuring Out Gas and Galaxies In Enzo (FOGGIE). VIII. Complex and Stochastic Metallicity Gradients at z > 2 Open
Gas-phase metallicity gradients are a crucial element in understanding the chemical evolution of galaxies. We use the FOGGIE simulations to study the metallicity gradients (∇ Z ) of six Milky Way–like galaxies throughout their evolution. F…
View article: Figuring Out Gas & Galaxies in Enzo (FOGGIE). IX: The Angular Momentum Evolution of Milky Way-like Galaxies and their Circumgalactic Gas
Figuring Out Gas & Galaxies in Enzo (FOGGIE). IX: The Angular Momentum Evolution of Milky Way-like Galaxies and their Circumgalactic Gas Open
We investigate the co-evolution of the angular momentum of Milky Way-like galaxies, their circumgalactic gas, and their dark matter halos using zoom-in simulations from the Figuring Out Gas & Galaxies in Enzo (FOGGIE) suite. We examine how…
View article: Figuring Out Gas and Galaxies in Enzo (FOGGIE). VII. The (Dis)assembly of Stellar Halos
Figuring Out Gas and Galaxies in Enzo (FOGGIE). VII. The (Dis)assembly of Stellar Halos Open
Over the next decade, the astronomical community will be commissioning multiple wide-field observatories well suited for studying stellar halos in both integrated light and resolved stars. In preparation for this, we use five high-resoluti…
View article: Figuring Out Gas & Galaxies In Enzo (FOGGIE) VIII: Complex and Stochastic Metallicity Gradients at z > 2
Figuring Out Gas & Galaxies In Enzo (FOGGIE) VIII: Complex and Stochastic Metallicity Gradients at z > 2 Open
Gas-phase metallicity gradients are a crucial element in understanding the chemical evolution of galaxies. We use the FOGGIE simulations to study the metallicity gradients ($\nabla Z$) of six Milky Way-like galaxies throughout their evolut…
View article: Evolution of Galaxy Size in the FOGGIE Simulations
Evolution of Galaxy Size in the FOGGIE Simulations Open
Cosmological simulations are a powerful tool to study galaxy evolution as they can span a substantial fraction of the cosmic time. In this research note, we use the Figuring Out Gas and Galaxies In Enzo simulations—cosmological hydrodynami…
View article: Figuring Out Gas & Galaxies In Enzo (FOGGIE) VII: The (Dis)Assembly of Stellar Halos
Figuring Out Gas & Galaxies In Enzo (FOGGIE) VII: The (Dis)Assembly of Stellar Halos Open
Over the next decade, the astronomical community will be commissioning multiple wide-field observatories well-suited for studying stellar halos in both integrated light and resolved stars. In preparation for this, we use five high-resoluti…
View article: Figuring Out Gas & Galaxies in Enzo (FOGGIE). VI. The Circumgalactic Medium of L <sup>∗</sup> Galaxies Is Supported in an Emergent, Nonhydrostatic Equilibrium
Figuring Out Gas & Galaxies in Enzo (FOGGIE). VI. The Circumgalactic Medium of L <sup>∗</sup> Galaxies Is Supported in an Emergent, Nonhydrostatic Equilibrium Open
The circumgalactic medium (CGM) is often assumed to exist in or near hydrostatic equilibrium, with the regulation of accretion and the effects of feedback treated as perturbations to a stable balance between gravity and thermal pressure. W…
View article: Figuring Out Gas & Galaxies In Enzo (FOGGIE) VI: The Circumgalactic Medium of $L^*$ Galaxies is Supported in an Emergent, Non-Hydrostatic Equilibrium
Figuring Out Gas & Galaxies In Enzo (FOGGIE) VI: The Circumgalactic Medium of $L^*$ Galaxies is Supported in an Emergent, Non-Hydrostatic Equilibrium Open
The circumgalactic medium (CGM) is often assumed to exist in or near hydrostatic equilibrium with the regulation of accretion and the effects of feedback treated as perturbations to a stable balance between gravity and thermal pressure. We…
View article: Snowmass2021 Cosmic Frontier White Paper: Cosmological Simulations for Dark Matter Physics
Snowmass2021 Cosmic Frontier White Paper: Cosmological Simulations for Dark Matter Physics Open
Over the past several decades, unexpected astronomical discoveries have been fueling a new wave of particle model building and are inspiring the next generation of ever-more-sophisticated simulations to reveal the nature of Dark Matter (DM…
View article: Snowmass2021 Cosmic Frontier White Paper: Cosmological Simulations for Dark Matter Physics
Snowmass2021 Cosmic Frontier White Paper: Cosmological Simulations for Dark Matter Physics Open
Over the past several decades, unexpected astronomical discoveries have been fueling a new wave of particle model building and are inspiring the next generation of ever-more-sophisticated simulations to reveal the nature of Dark Matter (DM…
View article: What’s in a Name? Quantifying the Interplay between the Definition, Orientation, and Shape of Ultra-diffuse Galaxies Using the Romulus Simulations
What’s in a Name? Quantifying the Interplay between the Definition, Orientation, and Shape of Ultra-diffuse Galaxies Using the Romulus Simulations Open
We explore populations of ultra-diffuse galaxies (UDGs) in isolated, satellite, and cluster environments using the R omulus 25 and R omulus C simulations, including how the populations vary with UDG definition and viewing orientation. Usin…
View article: What's in a name? Quantifying the interplay between definition, orientation and shape of UDGs using the ROMULUS Simulations
What's in a name? Quantifying the interplay between definition, orientation and shape of UDGs using the ROMULUS Simulations Open
We explore populations of ultra-diffuse galaxies (UDGs) in isolated, satellite, and cluster environments using the Romulus25 and RomulusC simulations, including how the populations vary with UDG definition and viewing orientation. Using a …
View article: The formation of isolated ultradiffuse galaxies in <scp>romulus25</scp>
The formation of isolated ultradiffuse galaxies in <span>romulus25</span> Open
We use the romulus25 cosmological simulation volume to identify the largest-ever simulated sample of field ultradiffuse galaxies (UDGs). At z = 0, we find that isolated UDGs have average star formation rates (SFRs), colours, and virial mas…
View article: An excess of globular clusters in Ultra-Diffuse Galaxies formed through tidal heating
An excess of globular clusters in Ultra-Diffuse Galaxies formed through tidal heating Open
To investigate the origin of elevated globular cluster (GC) abundances observed around Ultra-Diffuse Galaxies (UDGs), we simulate GC populations hosted by UDGs formed through tidal heating. Specifically, GC formation is modelled as occurri…
View article: The formation of ultradiffuse galaxies in the RomulusC galaxy cluster simulation
The formation of ultradiffuse galaxies in the RomulusC galaxy cluster simulation Open
We study the origins of 122 ultradiffuse galaxies (UDGs) in the Romulus c zoom-in cosmological simulation of a galaxy cluster (M200 = 1.15 × 1014 M⊙), one of the only such simulations capable of resolving the evolution and structure of dwa…
View article: Black Hole Growth and Feedback in Isolated ROMULUS25 Dwarf Galaxies
Black Hole Growth and Feedback in Isolated ROMULUS25 Dwarf Galaxies Open
We investigate the effects of massive black hole growth on the structural evolution of dwarf galaxies within the R omulus 25 cosmological hydrodynamical simulation. We study a sample of 205 central, isolated dwarf galaxies with stellar mas…
View article: The Formation of Ultra-Diffuse Galaxies from Passive Evolution in the RomulusC Galaxy Cluster Simulation
The Formation of Ultra-Diffuse Galaxies from Passive Evolution in the RomulusC Galaxy Cluster Simulation Open
View article: Erratum: Simulating radiative magnetohydrodynamical flows with <scp>astrobear</scp>: implementation and applications of non-equilibrium cooling
Erratum: Simulating radiative magnetohydrodynamical flows with <span>astrobear</span>: implementation and applications of non-equilibrium cooling Open
In the paper "Simulating Radiative Magnetohydrodynamical Flows with ASTROBEAR: Implementation and Applications of Nonequilibrium Cooling", MNRAS, 481, 3098, sty2471 (2018, the wrong figures were published for Figs 2, 3, and 4. The emission…
View article: Reignition of star formation in dwarf galaxies
Reignition of star formation in dwarf galaxies Open
The Local Group hosts a number of star-forming dwarf galaxies that show\nevidence of periods of little to no star formation. We use a suite of\ncosmological simulations to study how star formation is reignited in such\ngalaxies. We focus o…
View article: Simulating radiative magnetohydrodynamical flows with<scp>astrobear</scp>: implementation and applications of non-equilibrium cooling
Simulating radiative magnetohydrodynamical flows with<span>astrobear</span>: implementation and applications of non-equilibrium cooling Open
Radiative cooling plays a crucial role in the dynamics of many astrophysical flows, and is particularly important in the dense shocked gas within Herbig-Haro (HH) objects and stellar jets. Simulating cooling processes accurately is necessa…
View article: A NEW DIAGNOSTIC OF MAGNETIC FIELD STRENGTHS IN RADIATIVELY COOLED SHOCKS
A NEW DIAGNOSTIC OF MAGNETIC FIELD STRENGTHS IN RADIATIVELY COOLED SHOCKS Open
We show that it is possible to measure Alfvénic Mach numbers, defined as the shock velocity in the flow divided by the Alfvén velocity, for low-velocity (Vshock ≲ 100kms--1) radiative shocks. The method …