Status of the direct measurements of ¹⁸O(p,γ)¹⁹F and ²³Na(p,γ)²⁴Mg cross sections at astrophysical energies at LUNA

¹⁸O(p, γ)¹⁹F and ²³Na(p,γ)²⁴Mg are reactions of astrophysical interest for example in AGB star scenarios. The rates of both reactions are potentially influenced by low-energy resonances for whose strengths either exist only values with large uncertainties, upper limits or even contradictory claims. Measurements at the Laboratory for Underground Nuclear Astrophysics (LUNA) aim at a direct observation of these low-energy resonances, and additional cross section measurements to aid a more precise determination of the reaction rates in astrophysical scenarios. We report the experimental setup and the status of the ongoing measurements of the two reactions at LUNA. (paper)