TY - JOUR T1 - HiPERCAM and tess observations of the rapidly rotating M7V star LP 89--187 JO - Astronomy & Astrophysics UR - https://doi.org/10.1051/0004-6361/202554275 PY - 2025/10/10 AU - Ramsay G AU - Gerry Doyle J AU - Littlefair S AU - Dhillon VS AU - Garcia Alvarez D ED - DO - DOI: 10.1051/0004-6361/202554275 PB - EDP Sciences Y2 - 2025/10/27 ER -