* Astronomy

Title: Transit Timing Measurements Using a New Technique "Barycenter Method": Application to LHS 6343 System
Authors: M. Oshagh, G. Boué, N. Haghighipour, M. Montalto, P. Figueira, N. C. Santos

We present a new and model-independent technique for calculating the time of the mid-transits. This technique, named "Barycenter method", uses light-curve's symmetry to determine the transit timing by calculating the transit light-curve Barycenter. Unlike the other methods of calculating mid-transit timing, our technique does not depend on the parameters of the system and central star. We demonstrate the capabilities of the Barycenter method by applying this technique to some known transiting systems including several Kepler's confirmed planets. Among these transiting systems, we focus in particular on LHS 6343 C, a brown dwarf which transits a member of an M+M binary system, LHS 6343 AB. We present the results of our analysis, and identify a TTV signal in transit timing of LHS 6343 C that can be used to put an upper limit on the period and mass of a possible second small perturber.
 
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