Forming localized dust concentrations in a dust ring: DM Tau case study - The asymmetric 7 mm dust continuum of the DM Tau diskHauyu Baobab Liu, Takayuki Muto, Mihoko Konishi, Chia-Ying Chung, Jun Hashimoto, Kiyoaki Doi, Ruobing Dong, Tomoyuki Kudo, Yasuhiro Hasegawa, Yuka Terada and Akimasa KataokaA&A, 685 (2024) A18DOI: https://doi.org/10.1051/0004-6361/202348896