Since Protostars and Planets VI (PPVI), our knowledge of the global properties of
protoplanetary and debris disks, as well as of young stars, has dramatically improved. At the …

Planet-forming disc evolution is not independent of the star formation and feedback process
in giant molecular clouds. In particular, OB stars emit UV radiation that heats and disperses …

The strong X-ray irradiation from young solar-type stars may play a crucial role in the
thermodynamics and chemistry of circumstellar discs, driving their evolution in the last …

Young solar-type stars are known to be strong X-ray emitters and their X-ray spectra have
been widely studied. X-rays from the central star may play a crucial role in the …

The observed exoplanet population features a gap in the radius distribution that separates
the smaller super-Earths (≲ 1.7 Earth radii) from the larger sub-Neptunes (∼ 1.7–4 Earth …

Context. In recent years, high-angular-resolution observations of the dust and gas content in
circumstellar discs have revealed a variety of morphologies, naturally triggering the question …

Context. Planet formation models are necessary to understand the origins of diverse
planetary systems. Circumstellar disc substructures have been proposed as preferred …

Outflows driven by large-scale magnetic fields likely play an important role in the evolution
and dispersal of protoplanetary disks and in setting the conditions for planet formation. We …

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 …

Context. Most disks observed at high angular resolution show signs of substructures, such
as rings, gaps, arcs, and cavities, in both the gas and the dust. To understand the physical …