Astronomy & Astrophysics

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$\begin{figure} \par\includegraphics[width=8.5cm,clip]{0579fig1.eps}\end{figure}$ Figure 1: The ionization (solid), molecular (dash) and HD (dot) fractions, and the thermal evolution (dot-dash) of baryons in a virialized halo with mass $M_{\rm h}=10^6~M_\odot$ . The upper panel depicts standard case without additional Lyc photons, while the lower panel represents a model with extra UV photons with parameters corresponding to the model $\epsilon =0.3/(1+z)$ in Doroshkevich & Naselsky (2002). The HD fraction is multiplied by 10³. The number density n is divided by 10³.
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In the text

$\begin{figure} \par\includegraphics[width=8cm,clip]{0579fig2.eps}\end{figure}$ Figure 2: Minimum mass able to cool and collapse. The dashed line depicts the lower mass limit estimates by T97 in standard cosmological recombination. The four thin solid lines represent the lower mass for the rate of ionizing photon production by UHECR, $\epsilon = (0.1, 0.3, 1, 3)/(1+z)$ (from top to bottom). The thick solid line corresponds to 3 $\sigma$ peaks in a $\Lambda$ CDM model.
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In the text

$\begin{figure} \par\includegraphics[width=7.9cm,clip]{0579fig3.eps}\end{figure}$ Figure 3: Temperature ( upper panel), density ( middle panel) and Jeans mass ( lower panel) evolution of baryons in halos with masses 10⁶, 10⁷ and $10^8~M_\odot$ virialized at z=20 for the standard scenario, $\epsilon = 0$ , and for cosmological recombination dominaned by UHECR photons, $\epsilon = 0.1,~3$ : solid lines correspond to halo mass $M_{\rm h}=10^8~M_\odot$ , dashed lines - $M_{\rm h}=10^7~M_\odot$ , dotted lines - $M_{\rm h}=10^6~M_\odot$ . On panel a) the temperature of CMB is shown by the thick solid line.
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In the text

$\begin{figure} \par\includegraphics[width=8cm,clip]{0579fig2.eps}\end{figure}$	Figure 2: Minimum mass able to cool and collapse. The dashed line depicts the lower mass limit estimates by T97 in standard cosmological recombination. The four thin solid lines represent the lower mass for the rate of ionizing photon production by UHECR, $\epsilon = (0.1, 0.3, 1, 3)/(1+z)$ (from top to bottom). The thick solid line corresponds to 3 $\sigma$ peaks in a $\Lambda$ CDM model.
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