| Examining the accretion process in the Chamaeleon I star-forming region with high-resolution spectroscopy and the TESS space telescope |
| Gabriella Zsidi |
|
Konkoly Observatory
Hungary |
| Young stellar objects are still surrounded by a circumstellar disk, from which material is falling onto the stellar surface. This mass accretion process is essential in the formation of Sun-like stars. Although usually described with simple and static models, the accretion process is inherently time variable. In this talk, I will present the analysis of six low-mass young stellar objects located in the Chamaeleon I star forming region. The aim of this work is to characterize the geometry and variability of the accretion process by using several accretion tracers. In order to examine the accretion process in the time domain, we need multiple epochs of high cadence photometric data and high-resolution spectroscopic data. For this reason, we combined photometric observations obtained by the TESS space telescope, and high-resolution spectroscopic monitoring observations obtained by the VLT/ESPRESSO and the 2.2m/FEROS spectrographs. |