1206.2773 (J. L. Birkby et al.)

Discovery and characterisation of detached M-dwarf eclipsing binaries in the WFCAM Transit Survey    [PDF]

J. L. Birkby, S. V. Nefs, S. T. Hodgkin, G. Kovács, B. Sipöcz, D. J. Pinfield, I. A. G. Snellen, D. Mislis, F. Murgas, N. Lodieu, E. J. W. de Mooij, N. Goulding, P. Cruz, H. Stoev, M. Cappetta, E. Pallé, D. Barrado, R. Saglia, E. L. Martín, Y. Pavlenko

We report the discovery of 16 detached M-dwarf eclipsing binaries with J<16 mag and provide a detailed characterisation of three of them, using high-precision infrared light curves from the WFCAM Transit Survey (WTS). Such systems provide the most accurate and model-independent method for measuring the fundamental parameters of these poorly understood yet numerous stars, which currently lack sufficient observations to precisely calibrate stellar evolution models. We fully solve for the masses and radii of three of the systems, finding orbital periods in the range 1.5View original: http://arxiv.org/abs/1206.2773