Local spiral structure based on the Gaia EDR3 parallaxes Y. Xu, L. G. Hou, S. B. Bian, C. J. Hao, D. J. Liu, J. J. Li and Y. J. Li A&A, 645 (2021) L8 Published online: 14 January 2021 DOI: 10.1051/0004-6361/202040103