Molecular hydrogen in filaments at high Galactic latitudes

Open Access

Fig. 3

Comparison of velocities from H₂ absorption and filaments in H I and FIR. Top: direct comparison between v_H2 and filament velocities v_HI (black) or v_FIR (red) as defined in Sect. 2.1. Bottom: histogram of the velocity deviations $v_{H 2} - v_{f i l}^{H I}$ $\[v_{\mathrm{H} 2}-v_{\mathrm{fil}}^{\mathrm{HI}}\]$ for H I and FIR filaments. H₂ data are taken from Gillmon et al. (2006). The dotted blue curve represents a reference distribution with $σ v_{turb}^{H I} = 2.48$ $\[\sigma v_{\text {turb}}^{\mathrm{HI}}=2.48\]$ km s⁻¹.

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