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Close encounters: How stellar flybys shape planet-forming discs

Ménard, François; Price, Daniel J.; Cuello, Nicolás

We review the role of stellar flybys and encounters in shaping planet-forming discs around young stars, based on the published literature on this topic in the last 30 years. Since most stars ≤2

Transition disks: the observational revolution from SEDs to imaging

van der Marel, Nienke

Protoplanetary disks surrounding young stars are the birth place of planets. Of particular interest are the transition disks with large inner dust cavities of tens of au, hinting at the presence of massive companions. These cavities were first recognized by a deficit in their Spectral Energy Distribution (SED), later confirmed by millimeter interf…

Spectroscopic properties of stars in young binaries: fundamental data for understanding binary formation and disk evolution

Prato, Lisa

This contribution combines a relatively comprehensive review of the spectroscopic study of the individual component stars and their associated disks in young binary systems, outlines the need for more in-depth studies, and previews the results of a high-spectral and high-angular resolution survey of ∼