JWST Identification of Extremely Low C/N Galaxies with [N/O]≳ 0.5 at z∼ 6–10 Evidencing the Early CNO-cycle Enrichment and a Connection with Globular Cluster …

Y Isobe, M Ouchi, N Tominaga… - The Astrophysical …, 2023 - iopscience.iop.org
We present chemical abundance ratios of 70 star-forming galaxies at z∼ 4–10 observed by
the JWST/NIRSpec Early Release Observations, GLASS, and CEERS programs. Among the …

Extreme N-emitters at high redshift: Possible signatures of supermassive stars and globular cluster or black hole formation in action

R Marques-Chaves, D Schaerer… - Astronomy & …, 2024 - aanda.org
Context. Recent James Webb Space Telescope (JWST) spectroscopic observations of the
z= 10.6 galaxy GN-z11 have revealed a very peculiar UV spectrum exhibiting intense …

Strong Lyman continuum emitting galaxies show intense C IV λ1550 emission

D Schaerer, YI Izotov, G Worseck, D Berg… - Astronomy & …, 2022 - aanda.org
Using the Space Telescope Imaging Spectrograph, we have obtained ultraviolet spectra
from∼ 1200 to 2000 Å of known Lyman continuum (LyC) emitting galaxies at low redshift …

Density biases and temperature relations for DESIRED H ii regions

JE Méndez-Delgado, C Esteban… - Monthly Notices of …, 2023 - academic.oup.com
We present a first study based on the analysis of the DEep Spectra of Ionized REgions Data
base (DESIRED). This is a compilation of 190 high signal-to-noise ratio optical spectra of …

Nebular spectroscopy: a guide on H ii regions and planetary nebulae

M Peimbert, A Peimbert… - Publications of the …, 2017 - iopscience.iop.org
We present a tutorial on the determination of the physical conditions and chemical
abundances in gaseous nebulae. We also include a brief review of recent results on the …

The Sphinx Public Data Release: Forward Modelling High-Redshift JWST Observations with Cosmological Radiation Hydrodynamics Simulations

H Katz, J Rosdahl, T Kimm, J Blaizot… - arXiv preprint arXiv …, 2023 - arxiv.org
The recent launch of JWST has ushered in a new era of high-redshift astronomy by
providing detailed insights into the gas and stellar populations of galaxies in the epoch of …

CHAOS. VII. A Large-scale Direct Abundance Study in M33

NSJ Rogers, ED Skillman, RW Pogge… - The Astrophysical …, 2022 - iopscience.iop.org
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 …

Extensive online shock model database

A Alarie, C Morisset - Revista mexicana de astronomía y astrofísica, 2019 - scielo.org.mx
We present a new database of fully radiative shock models calculated with the shock and
photoionization code mappings v. The database architecture is built to contain diverse shock …

Ionization correction factors and dust depletion patterns in giant H ii regions

A Amayo, G Delgado-Inglada… - Monthly Notices of the …, 2021 - academic.oup.com
We provide new ionization correction factors (ICFs) for carbon, nitrogen, neon, sulfur,
chlorine, and argon in giant H ii regions. The ICFs were computed using the most …

The Galaxy Activity, Torus, and Outflow Survey (GATOS). IV. Exploring Ionized Gas Outflows in Central Kiloparsec Regions of GATOS Seyferts

L Zhang, C Packham, EKS Hicks… - The Astrophysical …, 2024 - iopscience.iop.org
Abstract Utilizing JWST MIRI/Medium Resolution Spectrograph integral field unit
observations of the kiloparsec-scale central regions, we showcase the diversity of ionized …