Biosignature false positives in potentially habitable planets around M dwarfs: the effect of UV radiation from one flare

Arturo Miranda-Rosete, Antígona Segura, Edward W. Schwieterman

Many past studies have predicted the steady-state production and maintenance of abiotic O${}_2$ and O${}_3$ in the atmospheres of CO${}_2$-rich terrestrial planets orbiting M dwarf stars…