TTVs study in Southern Stars

PETRUCCI, ROMINA; JOFRÉ, EMILIANO; SCHWARTZ, MARTÍN; BUCCINO, ANDREA; MAUAS, PABLO

Mendoza

Simposio; IAU Symposium 286: Comparative Magnetic Minima: characterizing quiet times in the Sun and stars; 2011

In this contribution we present 4 complete planetary transits observed with the 40-cm telescope ?Horacio Ghielmetti? located in San Juan(Argentina). These objects correspond to a continuous photometric monitoring program of Southern planet host-stars that we are carrying out since mid-2011. The goal of this project is to detect additional planetary mass objects around stars with known transiting-planets through Transit Timing Variations (TTVs). For all 4 transits the depth and duration are in good agreement with the values published in the discovery papers.