A search for transit timing variations in WASP-46b

R. PETRUCCI, E. JOFRÉ L. FERRERO, V. CÚNEO, L. SAKER, F. LOVOS, M. GOMEZ, P. MAUAS

Davos

Congreso; Exoplanets I; 2016

In this contribution we present the results of the search for transit timing variations (TTV) in the Hot Jupiter-like planet WASP-46b (Anderson et al. 2012), orbiting its host-star every 1.43 days. The detection of weak emission in the Ca II H+K lines of the CORALIE spectra and a rotational modulation of 16 ± 1 days found in the WASP data, confirm that the main-sequence star WASP-46 is active. The work by Ciceri et al. (2016) is the only TTV study for this system. However, their results are not conclusive, perhaps due to the fact that the analysis is not fully homogeneous. Taking this into account, in this contribution we present the first homogeneous TTV study of WASP-46b from the analysis of literature data and 10 new transit light curves collected from two different telescopes.