Shell helium-burning hot subdwarf B stars as candidates for blue large-amplitude pulsators H. Xiong, L. Casagrande, X. Chen, J. Vos, X. Zhang, S. Justham, J. Li, T. Wu, Y. Li and Z. Han A&A, 668 (2022) A112 Published online: 09 December 2022 DOI: 10.1051/0004-6361/202244571