Cody Carr
YOU?
Author Swipe
View article: Power-law Emission-line Wings and Radiation-driven Superwinds in Local Lyman Continuum Emitters
Power-law Emission-line Wings and Radiation-driven Superwinds in Local Lyman Continuum Emitters Open
We investigate broad emission-line wings, reaching ≤800 km s −1 , observed in 26 galaxies with Lyman continuum (LyC) observations, primarily from the Low-redshift Lyman Continuum Survey. Using Magellan/MIKE, Very Large Telescope/X-shooter,…
View article: Emission line tracers of galactic outflows driven by stellar feedback in simulations of isolated disc galaxies
Emission line tracers of galactic outflows driven by stellar feedback in simulations of isolated disc galaxies Open
Galactic outflows strongly influence galactic evolution and have been detected in a range of observations. Hydrodynamic simulations can help interpret these by connecting direct observables to the physical conditions of the outflowing gas.…
View article: Emission line tracers of galactic outflows driven by stellar feedback in simulations of isolated disk galaxies
Emission line tracers of galactic outflows driven by stellar feedback in simulations of isolated disk galaxies Open
Hydrodynamic simulations can connect outflow observables to the physical conditions of outflowing gas. Here, we use simulations of isolated disk galaxies ranging from dwarf mass ($M_{200} = 10^{10}\mathrm{M}_{\odot}$) to Milky Way mass ($M…
View article: Synergistic Radiative Transfer Modeling of Mg <scp>II</scp> and Ly<i>α</i> Emission in Multiphase, Clumpy Galactic Environments: Application to Low-redshift Lyman Continuum Leakers
Synergistic Radiative Transfer Modeling of Mg <span>II</span> and Ly<i>α</i> Emission in Multiphase, Clumpy Galactic Environments: Application to Low-redshift Lyman Continuum Leakers Open
We conducted systematic radiative transfer (RT) modeling of the Mg ii doublet line profiles for 33 low-redshift Lyman continuum (LyC) leakers, and Ly α modeling for six of these galaxies, using a multiphase, clumpy circumgalactic medium (C…
View article: Evaluating Mass Outflow Rate Estimators in FIRE-2 Simulations: Toward a Self-consistent Framework for Spectral-line-based Predictions
Evaluating Mass Outflow Rate Estimators in FIRE-2 Simulations: Toward a Self-consistent Framework for Spectral-line-based Predictions Open
Galactic outflows shape galaxy evolution, but their mass, energy, and momentum transfer remain uncertain. High-resolution spectroscopy can help, but systematic discrepancies hinder model interpretation. In this study, we evaluate the perfo…
View article: The Ly$α$ and Continuum Origins Survey. III. Investigating the link between galaxy morphology, merger properties and LyC escape
The Ly$α$ and Continuum Origins Survey. III. Investigating the link between galaxy morphology, merger properties and LyC escape Open
Characterizing the mechanisms and galaxy properties conducive to the emission and escape of ionizing (LyC) emission is necessary to accurately model the Epoch of Reionization, and identify the sources that powered it. The Lyman-alpha and C…
View article: The Ly<i>α</i> and Continuum Origins Survey. I. Survey Description and Ly<i>α</i> Imaging
The Ly<i>α</i> and Continuum Origins Survey. I. Survey Description and Ly<i>α</i> Imaging Open
Understanding the mechanisms driving the escape of ionizing or Lyman continuum (LyC) emission from the interstellar medium of galaxies is necessary to constrain the evolution of reionization and the sources responsible for it. While progre…
View article: The Low-redshift Lyman Continuum Survey: The Roles of Stellar Feedback and Interstellar Medium Geometry in LyC Escape
The Low-redshift Lyman Continuum Survey: The Roles of Stellar Feedback and Interstellar Medium Geometry in LyC Escape Open
One of the fundamental questions of cosmology is the origin and mechanism(s) responsible for the reionization of the Universe beyond z ∼ 6. Many studies have focused on Hubble Space Telescope (HST) Cosmic Origins Spectrograph (COS) observa…
View article: Shining a Light on the Connections between Galactic Outflows Seen in Absorption and Emission Lines
Shining a Light on the Connections between Galactic Outflows Seen in Absorption and Emission Lines Open
Galactic outflows provide important feedback effects to regulate the evolution of host galaxies. Two primary diagnostics of outflows are broad and/or blueshifted emission and absorption lines. Even though well-established methods exist to …
View article: The Effect of Radiation and Supernovae Feedback on LyC Escape in Local Star-forming Galaxies
The Effect of Radiation and Supernovae Feedback on LyC Escape in Local Star-forming Galaxies Open
Feedback is widely recognized as an essential condition for Lyman continuum (LyC) escape in star-forming galaxies. However, the mechanisms by which galactic outflows clear neutral gas and dust remain unclear. In this paper, we model the Mg…
View article: Physical Origins of Outflowing Cold Clouds in Local Star-forming Dwarf Galaxies
Physical Origins of Outflowing Cold Clouds in Local Star-forming Dwarf Galaxies Open
We study the physical origins of outflowing cold clouds in a sample of 14 low-redshift dwarf ( M * ≲ 10 10 M ⊙ ) galaxies from the Cosmic Origins Spectrograph Legacy Archive Spectroscopic SurveY (CLASSY) using Keck/ESI data. Outflows are t…
View article: A Simulated Galaxy Laboratory: Exploring the Observational Effects on UV Spectral Absorption Line Measurements
A Simulated Galaxy Laboratory: Exploring the Observational Effects on UV Spectral Absorption Line Measurements Open
Ultraviolet absorption line spectroscopy is a sensitive diagnostic for the properties of interstellar and circumgalactic gas. Down-the-barrel observations, where the absorption is measured against the galaxy itself, are commonly used to st…
View article: Physical Origins of Outflowing Cold Clouds in Local Star-forming Dwarf Galaxies
Physical Origins of Outflowing Cold Clouds in Local Star-forming Dwarf Galaxies Open
We study the physical origins of outflowing cold clouds in a sample of 14 low-redshift dwarf ($M_{\ast} \lesssim 10^{10}$ $M_{\odot}$) galaxies from the COS Legacy Archive Spectroscopic SurveY (CLASSY) using Keck/ESI data. Outflows are tra…
View article: A Simulated Galaxy Laboratory: Exploring the Observational Effects on UV Spectral Absorption Line Measurements
A Simulated Galaxy Laboratory: Exploring the Observational Effects on UV Spectral Absorption Line Measurements Open
Ultraviolet absorption line spectroscopy is a sensitive diagnostic for the properties of interstellar and circumgalactic gas. Down-the-barrel observations, where the absorption is measured against the galaxy itself, are commonly used to st…
View article: Erratum: “The Low-redshift Lyman Continuum Survey. I. New, Diverse Local Lyman Continuum Emitters” (2022, ApJS, 260, 1)
Erratum: “The Low-redshift Lyman Continuum Survey. I. New, Diverse Local Lyman Continuum Emitters” (2022, ApJS, 260, 1) Open
International audience
View article: CLASSY. X. Highlighting Differences between Partial Covering and Semianalytic Modeling in the Estimation of Galactic Outflow Properties
CLASSY. X. Highlighting Differences between Partial Covering and Semianalytic Modeling in the Estimation of Galactic Outflow Properties Open
Feedback-driven massive outflows play a crucial role in galaxy evolution by regulating star formation and influencing the dynamics of surrounding media. Extracting outflow properties from spectral lines is a notoriously difficult process f…
View article: Synergistic Radiative Transfer Modeling of MgII and Lyα Emission in Multiphase, Clumpy Galactic Environments: Application to Low-Redshift Lyman Continuum Leakers
Synergistic Radiative Transfer Modeling of MgII and Lyα Emission in Multiphase, Clumpy Galactic Environments: Application to Low-Redshift Lyman Continuum Leakers Open
We conducted systematic radiative transfer (RT) modeling of the Mg II doublet line profiles for 33 low-redshift Lyman continuum (LyC) leakers, and Ly$α$ modeling for a subset of six objects, using a multiphase, clumpy circumgalactic medium…
View article: Shining a Light on the Connections between Galactic Outflows Seen in Absorption and Emission Lines
Shining a Light on the Connections between Galactic Outflows Seen in Absorption and Emission Lines Open
Galactic outflows provide important feedback effects to regulate the evolution of host galaxies. Two primary diagnostics of outflows are broad and/or blueshifted emission and absorption lines. Even though well-established methods exist to …
View article: Multivariate Predictors of Lyman Continuum Escape. II. Predicting Lyman Continuum Escape Fractions for High-redshift Galaxies*
Multivariate Predictors of Lyman Continuum Escape. II. Predicting Lyman Continuum Escape Fractions for High-redshift Galaxies* Open
JWST is uncovering the properties of ever-increasing numbers of galaxies at z > 6, during the epoch of reionization. Connecting these observed populations to the process of reionization requires understanding how efficiently they produce L…
View article: The Low-Redshift Lyman Continuum Survey: The Roles of Stellar Feedback and ISM Geometry in LyC Escape
The Low-Redshift Lyman Continuum Survey: The Roles of Stellar Feedback and ISM Geometry in LyC Escape Open
One of the fundamental questions of cosmology is the origin and mechanism(s) responsible for the reionization of the Universe beyond $z\sim6$. To address this question, many studies over the past decade have focused on local ($z\sim0.3$) g…
View article: The Effect of Radiation and Supernovae Feedback on LyC Escape in Local Star-forming Galaxies
The Effect of Radiation and Supernovae Feedback on LyC Escape in Local Star-forming Galaxies Open
Feedback is widely recognized as an essential condition for Lyman continuum (LyC) escape in star-forming galaxies. However, the mechanisms by which galactic outflows clear neutral gas and dust remain unclear. In this paper, we model the Mg…
View article: Multivariate Predictors of Lyman Continuum Escape. I. A Survival Analysis of the Low-redshift Lyman Continuum Survey*
Multivariate Predictors of Lyman Continuum Escape. I. A Survival Analysis of the Low-redshift Lyman Continuum Survey* Open
To understand how galaxies reionized the Universe, we must determine how the escape fraction of Lyman continuum (LyC) photons ( f esc ) depends on galaxy properties. Using the z ∼ 0.3 Low-redshift Lyman Continuum Survey (LzLCS), we develop…
View article: Multivariate Predictors of LyC Escape II: Predicting LyC Escape Fractions for High-Redshift Galaxies
Multivariate Predictors of LyC Escape II: Predicting LyC Escape Fractions for High-Redshift Galaxies Open
JWST is uncovering the properties of ever increasing numbers of galaxies at z>6, during the epoch of reionization. Connecting these observed populations to the process of reionization requires understanding how efficiently they produce Lym…
View article: Multivariate Predictors of LyC Escape I: A Survival Analysis of the Low-redshift Lyman Continuum Survey
Multivariate Predictors of LyC Escape I: A Survival Analysis of the Low-redshift Lyman Continuum Survey Open
To understand how galaxies reionized the universe, we must determine how the escape fraction of Lyman Continuum (LyC) photons (fesc) depends on galaxy properties. Using the z~0.3 Low-redshift Lyman Continuum Survey (LzLCS), we develop and …
View article: Equilibrium States of Galactic Atmospheres I: The Flip Side of Mass Loading
Equilibrium States of Galactic Atmospheres I: The Flip Side of Mass Loading Open
This paper presents a new framework for understanding the relationship between a galaxy and its circumgalactic medium (CGM). It focuses on how imbalances between heating and cooling cause either expansion or contraction of the CGM. It does…
View article: CLASSY X: Highlighting Differences Between Partial Covering and Semi-Analytic Modeling in the Estimate of Galactic Outflow Properties
CLASSY X: Highlighting Differences Between Partial Covering and Semi-Analytic Modeling in the Estimate of Galactic Outflow Properties Open
Feedback driven massive outflows play a crucial role in galaxy evolution by regulating star formation and influencing the dynamics of surrounding media. Extracting outflow properties from spectral lines is a notoriously difficult process f…
View article: Ubiquitous broad-line emission and the relation between ionized gas outflows and Lyman continuum escape in Green Pea galaxies
Ubiquitous broad-line emission and the relation between ionized gas outflows and Lyman continuum escape in Green Pea galaxies Open
We report observational evidence of highly turbulent ionized gas kinematics in a sample of 20 Lyman continuum (LyC) emitters (LCEs) at low redshift ( z ∼ 0.3). Detailed Gaussian modeling of optical emission line profiles in high-dispersion…
View article: Ubiquitous broad-line emission and the relation between ionized gas outflows and Lyman continuum escape in Green Pea galaxies
Ubiquitous broad-line emission and the relation between ionized gas outflows and Lyman continuum escape in Green Pea galaxies Open
We report observational evidence of highly turbulent ionized gas kinematics in a sample of 20 Lyman continuum (LyC) emitters (LCEs) at low redshift ($z\sim 0.3$). Detailed Gaussian modeling of optical emission line profiles in high-dispers…
View article: CLASSY VII Lyα Profiles: The Structure and Kinematics of Neutral Gas and Implications for LyC Escape in Reionization-era Analogs*
CLASSY VII Lyα Profiles: The Structure and Kinematics of Neutral Gas and Implications for LyC Escape in Reionization-era Analogs* Open
Ly α line profiles are a powerful probe of interstellar medium (ISM) structure, outflow speed, and Lyman-continuum escape fraction. In this paper, we present the Ly α line profiles of the Cosmic Origins Spectrograph (COS) Legacy Archive Sp…
View article: Testing SALT Approximations with Numerical Radiation Transfer Code. I. Validity and Applicability
Testing SALT Approximations with Numerical Radiation Transfer Code. I. Validity and Applicability Open
Absorption line spectroscopy offers one of the best opportunities to constrain the properties of galactic outflows and the environment of the circumgalactic medium. Extracting physical information from line profiles is difficult; however, …