Dynamical masses of M-dwarf binaries in young moving groups. I. The case of TWA 
22 and GJ 2060

Rodet, L.; Bonnefoy, M.; Durkan, S.; Beust, H.; Lagrange, A. -M.; Schlieder, J. E.; Janson, M.; Grandjean, A.; Chauvin, G.; Messina, S.; Maire, A. -L.; Brandner, W.; Girard, J.; Delorme, P.; Biller, B.; Bergfors, C.; Lacour, S.; Feldt, M.; Henning, T.; Boccaletti, A.; Le Bouquin, J. -B.; Berger, J. -P.; Monin, J. -L.; Udry, S.; Peretti, S.; Segransan, D.; Allard, F.; Homeier, D.; Vigan, A.; Langlois, M.; Hagelberg, J.; Menard, F.; Bazzon, A.; Beuzit, J. -L.; Delboulbé, A.; Desidera, S.; Gratton, R.; Lannier, J.; Ligi, R.; Maurel, D.; Mesa, D.; Meyer, M.; Pavlov, A.; Ramos, J.; Rigal, R.; Roelfsema, R.; Salter, G.; Samland, M.; Schmidt, T.; Stadler, E.; Weber, L.

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Dynamical masses of M-dwarf binaries in young moving groups. I. The case of TWA 22 and GJ 2060

MPS-Authors

Rodet, L.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Bonnefoy, M.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Durkan, S.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Beust, H.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Lagrange, A. -M.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Schlieder, J. E.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Janson, M.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Grandjean, A.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Chauvin, G.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Messina, S.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Maire, A. -L.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Brandner, W.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Girard, J.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Delorme, P.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Biller, B.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Bergfors, C.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Lacour, S.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Feldt, M.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Henning, T.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Boccaletti, A.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Le Bouquin, J. -B.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Berger, J. -P.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Monin, J. -L.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Udry, S.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Peretti, S.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Segransan, D.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Allard, F.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Homeier, D.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Vigan, A.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Langlois, M.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Hagelberg, J.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Menard, F.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Bazzon, A.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Beuzit, J. -L.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Delboulbé, A.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Desidera, S.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Gratton, R.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Lannier, J.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Ligi, R.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Maurel, D.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Mesa, D.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Meyer, M.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Pavlov, A.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Ramos, J.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Rigal, R.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Roelfsema, R.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Salter, G.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Samland, M.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Schmidt, T.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Stadler, E.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Weber, L.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

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https://ui.adsabs.harvard.edu/abs/2018A&A...618A..23R
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Citation

Rodet, L., Bonnefoy, M., Durkan, S., Beust, H., Lagrange, A.-.-M., Schlieder, J. E., et al. (2018). Dynamical masses of M-dwarf binaries in young moving groups. I. The case of TWA 22 and GJ 2060. Astronomy and Astrophysics, 618.

Cite as: https://hdl.handle.net/21.11116/0000-0005-CB74-4

Abstract

Context. 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 (< 1 M_☉). GJ 2060 AB and TWA 22 AB are two rare astrometric M-dwarf binaries, respectively members of the AB Doradus (AB Dor) and Beta Pictoris (β Pic) moving groups. As their dynamical mass can be measured to within a few years, they can be used to calibrate the evolutionary tracks and set new constraints on the age of young moving groups.
Aims: We provide the first dynamical mass measurement of