MALS discovery of a rare H I 21 cm absorber at z ∼ 1.35: Origin of the absorbing gas in powerful active galactic nuclei

Open Access

Fig. 6.

Distribution of τ_1σ (top left), radio luminosity at 1.4 GHz (L_1.4 GHz in W Hz⁻¹; top right), spectral resolution (Δv in km s⁻¹; bottom left), and redshift (z_em; bottom right) for the sample of 16 quasars (including J2339−5523) with associated H I 21 cm detections. The vertical dotted lines indicate the median values of each parameter on the x-axis.

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