Characterizing the dust content of disk substructures in TW Hydrae E. Macías, O. Guerra-Alvarado, C. Carrasco-González, Á. Ribas, C. C. Espaillat, J. Huang and S. M. Andrews A&A, 648 (2021) A33 Published online: 12 April 2021 DOI: 10.1051/0004-6361/202039812