Metllicity in stars with debris disks and plantes.

CAROLINA CHAVERO; DE LA REZA, R.

Buenos Aires

Workshop; EXO.AR-I: 1st Argentinian Workshop on Exoplanets "Observations and data analysis; 2017

IAFE-OAC-ICATE

 Modalidad: ORALAbstract: We collected the most complete available sample of FGK solar mass main sequence (MS) stars with dusty debris disks and planets(DDP). Using the dust masses of thirty-five DDP stars, we explore  the correlation of the  metallicity of the central star  with the mass of the dusty debris disk and the masses of the planetary companyon. The   results of the analysis strongly supports the Core Accretion planetary formation model. We also study the lithium (Li) abundance properties in these two types of debris disks. For comparison purposes we collect two other similar, in number, samples of stars containing no detected disks but only giant planets (CP) and other without detected disks and planets (C). It is found that the main Li depletion occurs in the first ~ 10 Myr stage of the protoplanetary gas rich stage. We found that the Li abundance evolution.