Witzke, V.; Shapiro, A. I.; Kostogryz, N. M.; Cameron, R.; Rackham, B. V.; Seager, S.; Solanki, S. K.; Unruh, Y. C.: Can 1D Radiative-equilibrium Models of Faculae Be Used for Calculating Contamination of Transmission Spectra? The Astrophysical Journal 941, p. L35 (2022)
A star’s chemical composition strongly influences the ultraviolet radiation it emits into space and thus the conditions for the emergence of life in its neighbourhood.
A single star has provided information about the collision of the Milky Way with the dwarf galaxy Gaia-Enceladus. The event likely took place approximately 11.5 billion years ago.