Warm ISM in the Sgr A complex - II. The [C/N] abundance ratio traced by [CII] 158 μm and [NII] 205 μm observations toward the Arched Filaments at the Galactic centerP. García, N. Abel, M. Röllig, R. Simon and J. StutzkiA&A, 650 (2021) A86DOI: https://doi.org/10.1051/0004-6361/202039295
