New JWST spectrum of a z=8.3 galaxy with prior ALMA dust detection shows AGN signatures, 0.15 Zsun metallicity, Mdust ~10^6 Msun, Tdust~91 K, and an [OIII] line ratio higher than nebular models allow.
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Advocates for SKA frequency coverage beyond 15 GHz to observe redshifted low-J CO, HCN and similar lines for cold molecular gas studies in high-redshift galaxies.
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DREAMS. JWST Spectroscopy of a $z=8.3$ Galaxy with an ALMA Dust Continuum Detection: Early Dust, Very High $T_{\rm dust}$, and a Multi-wavelength [OIII] Ratio Discrepancy
New JWST spectrum of a z=8.3 galaxy with prior ALMA dust detection shows AGN signatures, 0.15 Zsun metallicity, Mdust ~10^6 Msun, Tdust~91 K, and an [OIII] line ratio higher than nebular models allow.
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Cm-wavelength Studies of Molecular Gas and Star Formation at High Redshift with the SKA
Advocates for SKA frequency coverage beyond 15 GHz to observe redshifted low-J CO, HCN and similar lines for cold molecular gas studies in high-redshift galaxies.