Dynamical constraints on the neutron star mass in EXO 0748-676
We present Very Large Telescope (VLT) intermediate resolution spectroscopy of UY Vol, the optical counterpart of the low mass X-ray binary (LMXB) X-ray burster EXO 0748-676. By using Doppler tomography we detect narrow components within the broad HeII λ4542, λ4686 and λ5412 emission lines. The phase, velocity and narrowness of these lines are
Muñoz-Darias, T. et al.
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2009