Electron impact ro-vibrational transitions and dissociative recombination of H2+ and HD+ - Rate coefficients and astrophysical implications

Open Access

Fig. 9

Fractional abundances of $H_{2}^{+}$ $\mathrm{H}_{2}^{+}$ (left panel) and HD⁺(right panel) for a shock wave propagating through a gas of primordial composition at redshift z=10, 20, and 30 and at a speed v_s=20 km s⁻¹. The dotted curves show the fractional abundances obtained adopting the DR reaction rates of Coppola et al. (2011) and Galli & Palla (1998), respectively.

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