{"paper":{"title":"Dynamical masses of M-dwarf binaries in young moving groups: I - The case of TWA 22 and GJ 2060","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.EP"],"primary_cat":"astro-ph.SR","authors_text":"A. Bazzon, A. Boccaletti, A. Delboulbe, A. Grandjean, A.-L. Maire, A-M Lagrange, A. Pavlov, A. Vigan, B. Biller, C. Bergfors, D. Homeier, D. Maurel, D. Mesa, D. Segransan, E. Stadler, F. Allard, F. Menard, G. Chauvin, G. Salter, H. Beust, J.-B. Le Bouquin, J. E. Schlieder, J. Girard, J. Hagelberg, J. Lannier, J.-L. Beuzit, J.-L. Monin, J.-P. Berger, J. Ramos, L. Rodet, L. Weber, M. Bonnefoy, M. Feldt, M. Janson, M. Langlois, M. Meyer, M. Samland, P. Delorme, R. Gratton, R. Ligi, R. Rigal, R. Roelfsema, S. Desidera, S. Durkan, S. Lacour, S. Messina, S. Peretti, S. Udry, T. Henning, T. Schmidt, W. Brandner","submitted_at":"2018-06-14T12:02:33Z","abstract_excerpt":"Evolutionary models are widely used to infer the mass of stars, brown dwarfs, and giant planets. Their predictions are thought to be less reliable at young ages ($<$ 200 Myr) and in the low-mass regime ($\\mathrm{<1~M_{\\odot}}$). GJ 2060 AB and TWA 22 AB are two rare astrometric M-dwarf binaries respectively members of the AB Doradus and Beta Pictoris moving groups. As their dynamical mass can be measured within a few years, they can be used to calibrate the evolutionary tracks and set new constraints on the age of young moving groups. We find a total mass of $\\mathrm{0.18\\pm 0.02~M_\\odot}$ for"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1806.05491","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}