Classical-Nova Contribution to the Milky Way's ${}^{26}$Al Abundance: Exit Channel of the Key ${}^{25}$Al($p,\gamma$)${}^{26}$Si Resonance

M. B. Bennett, C. Wrede, K. A. Chipps +21

Classical novae are expected to contribute to the 1809-keV Galactic $\gamma$-ray emission by producing its precursor ${}^{26}$Al, but the yield depends on the thermonuclear rate of the un…