Diffuse Galactic emission spectrum between 0.5 and 8.0 MeV Thomas Siegert, Joanna Berteaud, Francesca Calore, Pasquale D. Serpico and Christoph Weinberger A&A, 660 (2022) A130 Published online: 29 April 2022 DOI: 10.1051/0004-6361/202142639