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The Interstellar Medium in I Zw 18 Seen with JWST/MIRI. II. Warm Molecular Hydrogen and Warm Dust

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 centered on eleven regions of interest. We detect seven H _2...

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Ngā kaituhi matua: L. K. Hunt, B. T. Draine, M. G. Navarro, A. Aloisi, R. J. Rickards Vaught, A. Adamo, F. Annibali, D. Calzetti, S. Hernandez, B. L. James, M. Mingozzi, R. Schneider, M. Tosi, B. Brandl, M. G. del Valle-Espinosa, F. Donnan, A. S. Hirschauer, M. Meixner, D. Rigopoulou
Hōputu: Artigo
Reo:Inglês
I whakaputaina: IOP Publishing 2025-01-01
Rangatū:The Astrophysical Journal
Ngā marau:
Blue compact dwarf galaxies
Dwarf irregular galaxies
Interstellar medium
Infrared spectroscopy
Urunga tuihono:https://doi.org/10.3847/1538-4357/ae0191
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