Photometric follow-ups of transiting exoplanets (TEPs) may lead to discoveries of additional, less massive bodies in extrasolar systems. This is possible by detecting and then analysing variations in transit timing of transiting exoplanets. In 2009 we launched an international observing campaign, the aim of which is to detect and characterise signals of transit timing variation (TTV) in selected TEPs. The programme is realised by collecting data from 0.6--2.2-m telescopes spread worldwide at different longitudes. We present our observing strategy and summarise first results for WASP-3b with evidence for a 15 Earth-mass perturber in an outer 2:1 orbital resonance.
@article{arxiv.1010.3122,
title = {A search for transit timing variation},
author = {G. Maciejewski and R. Neuhaeuser and St. Raetz and R. Errmann and U. Kramm and T. O. B. Schmidt},
journal= {arXiv preprint arXiv:1010.3122},
year = {2015}
}
Comments
Poster contribution to Detection and Dynamics of Transiting Exoplanets (Haute Provence Observatory Colloquium, 23-27 August 2010)