TTVs study in southern stars

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

Mendoza

Simposio; Comparative Magnetic Minima: Characterizing quiet times in the Sun and Stars, IAU Symposium 286; 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.