Photodissociation cross sections of ${\text{H}}_2^{+}$ at different temperatures. Panel a illustrates the photodissociation cross sections of ${\text{H}}_2^{+}$ from its ground state to various electronically excited states, along with their cumulative sum at a thermodynamic temperature of 12 600 K. Transitions to the ²Π_u and ${}^2{\text{Σu}}_{+}^{}$ electronic states are distinctly represented by solid and dashed lines, respectively. Panel b presents the total photodissociation cross sections of the ${\text{H}}_2^{+}$ system computed at selected thermodynamic temperatures. An inset is included to magnify the spectral region surrounding the Lyman α line, clearly highlighting shape resonance features indicated by shaded light gray areas. The full dataset of LTE cross sections is available in the supplementary material.