Broad HCO+ absorption traces diffuse CO-dark H2 with f_mol=0.09, f_CNM=0.38, and CO abundance ≲10^{-5} relative to H2, undetected in CO emission or absorption below few×10^{19} cm^{-2}.
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3 Pith papers cite this work. Polarity classification is still indexing.
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SKA will enable Zeeman measurements of magnetic fields from cometary comas through Galactic structures and starburst galaxies to damped Ly-alpha systems at cosmological redshifts, with achievability tied to array assembly stages.
The chapter proposes SKA spectroscopic surveys of the inner and outer Milky Way using OH, CH, radio recombination lines, and H2CO to study molecular cloud formation, ionized gas properties, and CO-dark molecular gas.
citing papers explorer
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CO-dark molecular gas traced by HCO$^+$ in the diffuse interstellar medium
Broad HCO+ absorption traces diffuse CO-dark H2 with f_mol=0.09, f_CNM=0.38, and CO abundance ≲10^{-5} relative to H2, undetected in CO emission or absorption below few×10^{19} cm^{-2}.
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Measuring Magnetic Fields Near and Far with the SKA via the Zeeman Effect
SKA will enable Zeeman measurements of magnetic fields from cometary comas through Galactic structures and starburst galaxies to damped Ly-alpha systems at cosmological redshifts, with achievability tied to array assembly stages.
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Spectroscopic surveys with the SKA probing the ionized and molecular Milky Way
The chapter proposes SKA spectroscopic surveys of the inner and outer Milky Way using OH, CH, radio recombination lines, and H2CO to study molecular cloud formation, ionized gas properties, and CO-dark molecular gas.