Results 141 to 150 of about 12,147 (249)

The Dwarf Irregular Galaxy NGC 6822. II. Young, Intermediate and Old Stellar Populations: Comparison between Theory and Observations

open access: yesThe Astrophysical Journal
This paper presents a quantitative analysis of the stellar content in the Local Group dwarf irregular galaxy NGC 6822 by comparing stellar evolution models and observations in color–magnitude diagrams (CMDs) and color–color diagrams (CC-Ds). Our analysis
Maria Tantalo   +16 more
doaj   +1 more source

Probing the Relationship Between Early Star Formation and CO in the Dwarf Irregular Galaxy WLM with JWST

open access: yesThe Astronomical Journal
Wolf–Lundmark–Melotte (WLM) is a Local Group dwarf irregular (dIrr) galaxy with a metallicity 13% of solar. At 1 Mpc, the relative isolation of WLM provides a unique opportunity to investigate the internal mechanisms of star formation at low ...
Haylee N. Archer   +7 more
doaj   +1 more source

Stellar Populations and Molecular Gas Composition in the Low-metallicity Environment of WLM

open access: yesThe Astronomical Journal
We investigate the stellar populations and molecular gas properties of a star-forming region within the dwarf irregular (dIrr) galaxy Wolf–Lundmark–Mellote (WLM).
Haylee N. Archer   +10 more
doaj   +1 more source

Relationships between Polycyclic Aromatic Hydrocarbons, Small Dust Grains, H2, and H i in Local Group Dwarf Galaxies NGC 6822 and WLM Using JWST, ALMA, and the VLA

open access: yesThe Astrophysical Journal
We present 0.6–3.2 pc resolution mid-infrared (MIR) JWST images at 7.7 μ m (F770W) and 21 μ m (F2100W) covering the main star-forming regions of two of the closest star-forming low-metallicity dwarf galaxies, NGC 6822 and Wolf–Lundmark–Melotte (WLM). The
Ryan Chown   +29 more
doaj   +1 more source

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