Oral comunication
J. Gomes da Silva
Abstract
The AMBRE project is a collaboration to determine the stellar atmospheric parameters of the archived spectra of four ESO spectrographs. In this context we aim to study the stellar activity of the ESO-HARPS sample. We are interested in evaluating activity and, using time-series and stellar parameters, determining the rotational and magnetic cycle periods of the stars. Stellar activity, rotation and magnetic cycles are inter-connected and can give information about the origin and evolution of stars. Furthermore, these parameters are very important for the detection and characterisation of extra-solar planets since stellar activity is one of the main sources of stellar noise, which hampers planet detection, but also plays a role on exoplanet habitability.
XXIX Encontro Nacional de Estudantes de Astronomia
Lisboa, Portugal
2019 September
