Laboratory hydrogenation of the photo-fragments of PAH cations: Co-evolution interstellar chemistryCongcong Zhang, Xiaoyi Hu, Yanan Ge, Zhenru Dong, Yuanyuan Yang, Jia Liu, Yang Chen, Junfeng Zhen and Liping QinA&A, 669 (2023) A41DOI: https://doi.org/10.1051/0004-6361/202244951