FLORES TRIVIGNO Matias Gaston
congresos y reuniones científicas
Stellar Activity in exoplanet host stars
MATÍAS FLORES; ANDREA BUCCINO; CARLOS SAFFE; PABLO MAUAS
Workshop; School on Fundamental Astrophysics; 2013
The ICTP South American Institute for Fundamental Research (ICTP-SAIFR)
In this work, we analyzed the possible relation between stellar activity and the planet´s orbital parameters. Our observations were made at the 2.15 m telescope of the Complejo Astronómico El Leoncito (CASLEO), which is located at 2552 m above sea level, in the Argentinean Andes. We used the REOSC spectrograph to obtain a series of mid-resolution spectra. We studied the long-term activity of stars with planets. To do so, we used as activity indicator the well-known Mount Wilson index (S). Furthermore, we took cuasisimultaneous the spectra of stars without planets with the same spectral class, to compare activity levels. These studies were complemented by photometric observations from ASAS.