129 citations · 770 across the 22 of their papers we have counts for
24 papers
An Empirical Temperature Relation for Chemical Abundances in AGN
Sophia R. Flury, Oli L. Dors, Rogemar A. Riffel +5
We present for the very first time the empirical temperature structure of the narrow line region (NLR) clouds of active galactic nuclei (AGNs) based on a sample of [N II] and [O II…
CLASSY. XV. Kinematics and Spatial Distributions of Outflows in Local Highly Star-Forming Galaxies
Mason S. Huberty, Cody A. Carr, Claudia Scarlata +17
Star-forming galaxies drive massive outflows that play an important role in galaxy evolution by regulating feedback and influencing the dynamics of surrounding media. Measuring gal…
Resolving the Unresolved Galactic Winds in Multi-phase Models. I. Methodology and Application
Xinfeng Xu, Drummond Fielding, Timothy Heckman +12
Galactic winds shape galaxy evolution; however, the outflowing gas is complex: it consists of multiple ionization phases, and its properties vary spatially. Therefore, methods that…
JWST/MIRI-MRS view of the metal-poor galaxy CGCG 007-025: the spatial location of PAHs and very highly ionized gas
Macarena G. del Valle-Espinosa, Matilde Mingozzi, Bethan James +16
Polycyclic Aromatic Hydrocarbons (PAHs) are key diagnostics of the physical conditions in the interstellar medium and are widely used to trace star formation in the mid-infrared (m…
CLASSY XI: Tracing Neutral Gas Properties using UV Absorption Lines and 21-cm Observations
Kaelee S. Parker, Danielle A. Berg, Simon Gazagnes +15
Rest-frame far-ultraviolet (FUV) observations from JWST are revolutionizing our understanding of the high-z galaxies that drove reionization and the mechanisms by which they accomp…
Aperture and Resolution Effects on Ultraviolet Star-Forming Properties: Insights from Local Galaxies and Implications for High-Redshift Observations
Ilyse Clark, Danielle A. Berg, Claus Leitherer +2
We present an analysis of the effects of spectral resolution and aperture scales on derived galaxy properties using far-ultraviolet (FUV) spectra of local star-forming galaxies fro…
CLASSY VII Lyα Profiles: The Structure and Kinematics of Neutral Gas and Implications for LyC Escape in Reionization-Era Analogs
Weida Hu, Crystal L. Martin, Max Gronke +22
Lyman-alpha line profiles are a powerful probe of ISM structure, outflow speed, and Lyman continuum escape fraction. In this paper, we present the Ly line profiles of the COS Le…
Interpreting the Si II and C II line spectra from the COS Legacy Spectroscopic SurveY using a virtual galaxy from a high-resolution radiation-hydrodynamic simulation
Simon Gazagnes, Valentin Mauerhofer, Danielle A. Berg +19
Observations of low-ionization state (LIS) metal lines provide crucial insights into the interstellar medium of galaxies, yet, disentangling the physical processes responsible for…
Density biases and temperature relations for DESIRED HII regions
J. E. Méndez-Delgado, C. Esteban, J. García-Rojas +6
We present a first study based on the analysis of the DEep Spectra of Ionized REgions Database (DESIRED). This is a compilation of 190 high signal-to-noise ratio optical spectra of…
CLASSY VI: Density, Structure and Size of Galactic Outflows
Xinfeng Xu, Timothy Heckman, Alaina Henry +12
Galaxy formation and evolution are regulated by the feedback from galactic winds. Absorption lines provide the most widely available probe of winds. However, since most data only p…
CLASSY IV: Exploring UV diagnostics of the interstellar medium in local high- analogs at the dawn of the JWST era
Matilde Mingozzi, Bethan L. James, Karla Z. Arellano-Córdova +22
The COS Legacy Archive Spectroscopic SurveY (CLASSY) HST/COS treasury program provides the first high-resolution spectral catalogue of 45 local high-z analogues in the UV (1200-200…
CHAOS VII: A Large-Scale Direct Abundance Study in M33
Noah S. J. Rogers, Evan D. Skillman, Richard W. Pogge +5
The dispersion in chemical abundances provides a very strong constraint on the processes that drive the chemical enrichment of galaxies. Due to its proximity, the spiral galaxy M33…
A First Look at the Abundance Pattern -- O/H, C/O, and Ne/O -- in Galaxies with JWST/NIRSpec
Karla Z. Arellano-Córdova, Danielle A. Berg, John Chisholm +9
We analyze the rest-frame near-UV and optical nebular spectra of three galaxies from the Early Release Observations taken with the Near-Infrared Spectrograph (NIRSpec) on t…
CLASSY V: The impact of aperture effects on the inferred nebular properties of local star-forming galaxies
Karla Z. Arellano-Córdova, Matilde Mingozzi, Danielle A. Berg +23
Strong nebular emission lines are an important diagnostic tool for tracing the evolution of star-forming galaxies across cosmic time. However, different observational setups can af…
CLASSY II: A technical Overview of the COS Legacy Archive Spectroscopic SurveY
Bethan L. James, Danielle A. Berg, Teagan King +45
The COS Legacy Archive Spectroscopic SurveY (CLASSY) is designed to provide the community with a spectral atlas of 45 nearby star-forming galaxies which were chosen to cover simila…
About Metallicity Variations in the Local Galactic Interstellar Medium
C. Esteban, J. E. Méndez-Delgado, J. García-Rojas +1
In this paper we discuss and confront recent results on metallicity variations in the local interstellar medium, obtained from observations of HII regions and neutral clouds of the…
CLASSY III: The Properties of Starburst-Driven Warm Ionized Outflows
Xinfeng Xu, Timothy Heckman, Alaina Henry +18
We report the results of analyses of galactic outflows in a sample of 45 low-redshift starburst galaxies in the COS Legacy Archive Spectroscopic SurveY (CLASSY), augmented by five…
The COS Legacy Archive Spectroscopy SurveY (CLASSY) Treasury Atlas
Danielle A. Berg, Bethan L. James, Teagan King +46
Far-ultraviolet (FUV; ~1200-2000 angstroms) spectra are fundamental to our understanding of star-forming galaxies, providing a unique window on massive stellar populations, chemica…
Photoionized Herbig-Haro objects in the Orion Nebula through deep high-spectral resolution spectroscopy II: HH204
J. E. Méndez-Delgado, W. J. Henney, C. Esteban +3
We analyze the physical conditions, chemical composition and other properties of the photoionized Herbig-Haro object HH~204 through Very Large Telescope (VLT) echelle spectroscopy…
Photoionized Herbig-Haro objects in the Orion Nebula through deep high-spectral resolution spectroscopy I: HH529II and III
J. E. Méndez-Delgado, C. Esteban, J. García-Rojas +3
We present the analysis of physical conditions, chemical composition and kinematic properties of two bow shocks -HH529 II and HH529 III- of the fully photoionized Herbig-Haro objec…
The Te[N II]-Te[O III] temperature relation in H II regions and the reliability of strong-line methods
K. Z. Arellano-Córdova, M. Rodríguez
We use a sample of 154 observations of 124 H II regions that have measurements of both Te[O III] and Te[N II], compiled from the literature, to explore the behaviour of the Te[O II…
Helium abundances and its radial gradient from the spectra of HII regions and ring nebulae of the Milky Way
J. E. Méndez-Delgado, C. Esteban, J. García-Rojas +2
We determine the radial abundance gradient of helium in the disc of the Galaxy from published spectra of 19 regions and ring nebulae surrounding mass…
Galactic abundance gradients from deep spectra of HII regions
C. Esteban, J. García-Rojas, K. Z. Arellano-Córdova +1
We present some results of an ongoing project devoted to reassess the radial abundance gradients in the disc of the MilkyWay based on deep spectroscopy of Hii regions. The data hav…
The XMM-Newton/HST view of the obscuring outflow in the Seyfert Galaxy Mrk 335 observed at extremely low X-ray flux
Anna Lia Longinotti, Gerard Kriss, Yair Krongold +8
The Seyfert Galaxy Mrk 335 is known for its frequent changes of flux and spectral shape in the X-ray band occurred during recent years. These variations may be explained by the ons…