L. K. Hunt
YOU?
Author Swipe
View article: The Interstellar Medium in I Zw 18 Seen with JWST/MIRI. II. Warm Molecular Hydrogen and Warm Dust
The Interstellar Medium in I Zw 18 Seen with JWST/MIRI. II. Warm Molecular Hydrogen and Warm Dust Open
We present JWST/MIRI spectra from the Medium-resolution Spectrometer of I Zw 18, a nearby dwarf galaxy with a metallicity of ∼3% Solar. Here, we investigate warm molecular hydrogen, H 2 , observed in spectra extracted in ∼120 pc apertures …
View article: Oxygen isotopes reveal low-mass star dominance in the Small Magellanic Cloud
Oxygen isotopes reveal low-mass star dominance in the Small Magellanic Cloud Open
Oxygen isotope abundances and their ratios are fingerprints of stellar evolution and therefore provide a powerful tool in tracing the enrichment history of galaxies. However, their behavior in low-metallicity dwarf galaxies remains largely…
View article: The Interstellar Medium in I Zw 18 Seen with JWST/MIRI. I. Highly Ionized Gas
The Interstellar Medium in I Zw 18 Seen with JWST/MIRI. I. Highly Ionized Gas Open
We present JWST/MIRI spectra from the Medium-Resolution Spectrometer of I Zw 18, a nearby dwarf galaxy with a metallicity of ∼3% solar. Its proximity enables a detailed study of highly ionized gas that can be interpreted in the context of …
View article: <i>Euclid</i> preparation
<i>Euclid</i> preparation Open
The European Space Agency’s Euclid mission will observe approximately 14000 deg 2 of the extragalactic sky and deliver high-quality imaging of a large number of galaxies. The depth and high spatial resolution of the data will enable a deta…
View article: Quantification of the Age Dependence of Mid-infrared Star Formation Rate Indicators
Quantification of the Age Dependence of Mid-infrared Star Formation Rate Indicators Open
We combine James Webb Space Telescope images of the nearby galaxy NGC 5194 in the hydrogen recombination line Pa α (1.8756 μ m) from the Cycle 1 program JWST-FEAST with 21 μ m dust continuum images from the Cycle 2 Treasury program JWGT to…
View article: <i>Euclid</i> : Early Release Observations – Interplay between dwarf galaxies and their globular clusters in the Perseus galaxy cluster
<i>Euclid</i> : Early Release Observations – Interplay between dwarf galaxies and their globular clusters in the Perseus galaxy cluster Open
We present an analysis of globular clusters (GCs) of dwarf galaxies in the Perseus galaxy cluster that explores the relationship between dwarf galaxy properties and their GCs. Our focus is on GC numbers ( N GC ) and GC half-number radii ( …
View article: Euclid preparation. Using mock Low Surface Brightness dwarf galaxies to probe Wide Survey detection capabilities
Euclid preparation. Using mock Low Surface Brightness dwarf galaxies to probe Wide Survey detection capabilities Open
Local Universe dwarf galaxies are both cosmological and mass assembly probes. Deep surveys have enabled the study of these objects down to the low surface brightness (LSB) regime. In this paper, we estimate Euclid's dwarf detection capabil…
View article: <i>Euclid</i> : Star clusters in IC 342, NGC 2403, and Holmberg II
<i>Euclid</i> : Star clusters in IC 342, NGC 2403, and Holmberg II Open
We examine the star cluster populations in the three nearby (3.20–3.45 Mpc) galaxies IC 342, NGC 2403, and Holmberg II, observed as part of the Euclid Early Release Observations programme. Our main focus in this paper is old globular clust…
View article: The Interstellar Medium in I Zw 18 Seen with JWST/MIRI. III. Spatially Resolved Three Ionization State Oxygen Abundance
The Interstellar Medium in I Zw 18 Seen with JWST/MIRI. III. Spatially Resolved Three Ionization State Oxygen Abundance Open
We present observations of the nearby extremely metal-poor galaxy I Zw 18 using the Keck Cosmic Web Imager (KCWI) and the JWST Mid-InfraRed Instrument (MIRI) Integral Field Spectrographs. From optical and mid-IR oxygen emission lines, we m…
View article: Erratum: “Excitation of Polycyclic Aromatic Hydrocarbon Emission: Dependence on Size Distribution, Ionization, and Starlight Spectrum and Intensity” (2021, ApJ, 917, 3)
Erratum: “Excitation of Polycyclic Aromatic Hydrocarbon Emission: Dependence on Size Distribution, Ionization, and Starlight Spectrum and Intensity” (2021, ApJ, 917, 3) Open
View article: The Interstellar Medium in I Zw 18 seen with JWST/MIRI: III. Spatially Resolved Three Ionization State Oxygen Abundance
The Interstellar Medium in I Zw 18 seen with JWST/MIRI: III. Spatially Resolved Three Ionization State Oxygen Abundance Open
We present observations of the nearby extremely metal-poor galaxy I Zw 18 using the Keck Cosmic Web Imager (KCWI) and the JWST Mid-InfraRed Instrument (MIRI) Integral Field Spectrographs (IFS). From optical and mid-IR oxygen emission lines…
View article: A JWST/MIRI View of the Interstellar Medium in M83. I. Resolved Molecular Hydrogen Properties, Star Formation, and Feedback
A JWST/MIRI View of the Interstellar Medium in M83. I. Resolved Molecular Hydrogen Properties, Star Formation, and Feedback Open
We present a spatially resolved (∼3 pc pixel −1 ) analysis of the distribution, kinematics, and excitation of warm H 2 gas in the nuclear starburst region of M83. Our JWST/MIRI integral field unit spectroscopy reveals a clumpy reservoir of…
View article: <i>Euclid</i>: Early Release Observations of diffuse stellar structures and globular clusters as probes of the mass assembly of galaxies in the Dorado group
<i>Euclid</i>: Early Release Observations of diffuse stellar structures and globular clusters as probes of the mass assembly of galaxies in the Dorado group Open
Deep surveys have helped to unveil the history of past and present galaxy mergers, and, in particular, uncovering their tidal debris and co-located globular clusters (GCs). Euclid ’s unique combination of capabilities (spatial resolution, …
View article: An Investigation of Disk Thickness in M51 from H<i>α</i>, Pa<i>α</i>, and Mid-infrared Power Spectra
An Investigation of Disk Thickness in M51 from H<i>α</i>, Pa<i>α</i>, and Mid-infrared Power Spectra Open
Power spectra (PS) of high-resolution images of M51 (NGC 5194) taken with the Hubble Space Telescope and the James Webb Space Telescope (JWST) have been examined for evidence of disk thickness in the form of a change in slope between large…
View article: INSPIRE: INvestigating Stellar Populations In RElics – IX. KiDS J0842 + 0059: the first fully confirmed relic beyond the local Universe
INSPIRE: INvestigating Stellar Populations In RElics – IX. KiDS J0842 + 0059: the first fully confirmed relic beyond the local Universe Open
Relics are massive, compact and quiescent galaxies that assembled the majority of their stars in the early Universe and lived untouched until today, completely missing any subsequent size growth caused by mergers and interactions. They pro…
View article: Exploring the Mysterious High-ionization Source Powering [Ne<scp> v</scp>] in High-<i>z</i> Analog SBS0335-052 E with JWST/MIRI
Exploring the Mysterious High-ionization Source Powering [Ne<span> v</span>] in High-<i>z</i> Analog SBS0335-052 E with JWST/MIRI Open
Nearby blue compact dwarf galaxies (BCDs) are considered analogs to objects from the Epoch of Reionization revealed by JWST, having similarly low stellar masses, low metallicities, and high specific star formation rates. Thus, they represe…
View article: INSPIRE: INvestigating Stellar Populations In RElics. IX. KiDS J0842+0059: the first fully confirmed relic beyond the local Universe
INSPIRE: INvestigating Stellar Populations In RElics. IX. KiDS J0842+0059: the first fully confirmed relic beyond the local Universe Open
Relics are massive, compact and quiescent galaxies that assembled the majority of their stars in the early Universe and lived untouched until today, completely missing any subsequent size-growth caused by mergers and interactions. They pro…
View article: Stellar Populations and Molecular Gas Composition in the Low-metallicity Environment of WLM
Stellar Populations and Molecular Gas Composition in the Low-metallicity Environment of WLM Open
We investigate the stellar populations and molecular gas properties of a star-forming region within the dwarf irregular (dIrr) galaxy Wolf–Lundmark–Mellote (WLM). Low-metallicity dIrrs like WLM offer a valuable window into star formation i…
View article: Detection of Deuterated Hydrocarbon Nanoparticles in the Whirlpool Galaxy, M51
Detection of Deuterated Hydrocarbon Nanoparticles in the Whirlpool Galaxy, M51 Open
Deuteration of hydrocarbon material, including polycyclic aromatic hydrocarbons (PAHs), has been proposed to account for the low gas-phase abundances of D in the interstellar medium (ISM). JWST spectra of four star-forming regions in M51 s…
View article: JWST/MIRI Detection of [Ne v] and [Ne <scp>vi</scp>] in M83: Evidence for the Long Sought-after Active Galactic Nucleus?
JWST/MIRI Detection of [Ne v] and [Ne <span>vi</span>] in M83: Evidence for the Long Sought-after Active Galactic Nucleus? Open
We report the first detections of [Ne v] λ 14.3 μ m and [Ne vi ] λ 7.7 μ m at high confidence (S/N ≥ 6) in the nuclear region of the nearby spiral galaxy M83. Emission-line maps of these high-ionization lines show several compact structure…
View article: Detection of Deuterated Hydrocarbon Nanoparticles in the Whirlpool Galaxy, M51
Detection of Deuterated Hydrocarbon Nanoparticles in the Whirlpool Galaxy, M51 Open
Deuteration of hydrocarbon material, including polycyclic aromatic hydrocarbons (PAHs), has been proposed to account for the low gas-phase abundances of D in the interstellar medium. JWST spectra of four star-forming regions in M51 show an…
View article: Stellar Populations and Molecular Gas Composition in the Low-Metallicity Environment of WLM
Stellar Populations and Molecular Gas Composition in the Low-Metallicity Environment of WLM Open
We investigate the stellar populations and molecular gas properties of a star-forming region within the dwarf irregular (dIrr) galaxy WLM. Low-metallicity dIrrs like WLM offer a valuable window into star formation in environments that are …
View article: DDO 68-C: HST Confirms Yet Another Companion of the <i>Isolated</i> Dwarf Galaxy DDO 68
DDO 68-C: HST Confirms Yet Another Companion of the <i>Isolated</i> Dwarf Galaxy DDO 68 Open
We present the results of deep Hubble Space Telescope photometry of the dwarf galaxy DDO 68-C, proposed as possibly associated with the isolated peculiar dwarf DDO 68. The new data resolve for the first time the stars of DDO 68-C down to w…
View article: <i>Euclid</i>: Early Release Observations – Dwarf galaxies in the Perseus galaxy cluster
<i>Euclid</i>: Early Release Observations – Dwarf galaxies in the Perseus galaxy cluster Open
We make use of the unprecedented depth, spatial resolution, and field of view of the Euclid Early Release Observations (EROs) of the Perseus galaxy cluster to detect and characterise the dwarf galaxy population in this massive system. Usin…
View article: DDO68-C: HST confirms yet another companion of the isolated dwarf galaxy DDO 68
DDO68-C: HST confirms yet another companion of the isolated dwarf galaxy DDO 68 Open
We present the results of deep Hubble Space Telescope photometry of the dwarf galaxy DDO 68-C, proposed as possibly associated with the isolated peculiar dwarf DDO 68. The new data resolve for the first time the stars of DDO 68-C down to w…
View article: JWST/MIRI detection of [Ne V] and [Ne VI] in M83: Evidence for the long sought-after AGN?
JWST/MIRI detection of [Ne V] and [Ne VI] in M83: Evidence for the long sought-after AGN? Open
We report the first detections of [Ne V] 14.3 μm and [Ne VI] 7.7 μm at high confidence (S/N>=6) in the nuclear region of the nearby spiral galaxy M83. Emission line maps of these high ionization lines show several compact structures. Speci…
View article: Exploring the mysterious high-ionization source powering [Ne V] in high-z analog SBS0335-052 E with JWST/MIRI
Exploring the mysterious high-ionization source powering [Ne V] in high-z analog SBS0335-052 E with JWST/MIRI Open
Nearby blue compact dwarf galaxies (BCDs) share similar properties with objects from the Epoch of Reionization revealed by JWST, in terms of low stellar mass, low metallicity and high specific star-formation rate. Thus, they represent idea…
View article: The Galaxy Activity, Torus, and Outflow Survey (GATOS)
The Galaxy Activity, Torus, and Outflow Survey (GATOS) Open
The detailed feeding and feedback mechanisms of active galactic nuclei (AGNs) are not yet well known. For low-luminosity AGNs, obscured AGNs, and late-type galaxies, the masses of their central black holes (BH) are difficult to determine p…
View article: The Galaxy Activity, Torus, and Outflow Survey (GATOS). Black hole mass estimation using machine learning
The Galaxy Activity, Torus, and Outflow Survey (GATOS). Black hole mass estimation using machine learning Open
The detailed feeding and feedback mechanisms of Active Galactic Nuclei (AGN) are not yet well known. For low-luminosity and obscured AGN, as well as late-type galaxies, determining the central black hole (BH) masses is challenging. Our goa…
View article: <i>Euclid</i> preparation
<i>Euclid</i> preparation Open
Extragalactic globular clusters (EGCs) are an abundant and powerful tracer of galaxy dynamics and formation, and their own formation and evolution is also a matter of extensive debate. The compact nature of globular clusters means that the…