• Planetary formation
• Exoplanet
• Astronomy
• VLT
• ERIS
• APP
• AS 209
• PDS 70
• Elias 2-24
• HD100546
• TW Hya
• HD 169142
• HD 163296
• protoplanetary disk

Since 1995, over 5500 exoplanets have been confirmed using techniques like radial velocity, transit photometry, and direct imaging. The discovery of the first exoplanet led to a new branch of astrophysics, honored with the 2019 Nobel Prize in Physics. Direct imaging challenges traditional planetary formation models, suggesting the Gravitational Disk Instability model. This study focuses on seven protoplanetary disks (PPDs) aged 0.4 million to 12 million years, using the Enhanced Resolution Imager and Spectrograph (ERIS) on the VLT. The thesis develops a custom pre-processing procedure for ERIS and employs Angular Differential Imaging (ADI) and Reference Star Differential Imaging (RDI) for post-processing. The analysis identifies disks around all targets except HD 196142, of particular interest are the cases of PDS 70 and HD 100546 and the potential discovery of new planets around AS 209. The study also estimates mass limits for detectable planets and presents challenges in observing specific objects due to instrumental limitations. The work contributes to understanding young exoplanets and improving observational techniques.