Star and planet formation are inextricably linked. In the earliest phases of the collapse of a
protostar, a disc forms around the young star and such discs are observed for the first …

Most stars and thus most planetary systems do not form in isolation. The larger star-forming
environment affects protoplanetary disks in multiple ways: Gravitational interactions with …

Context. Detecting and characterising exoworlds around very young stars (age≤ 10 Myr)
are key aspects of exoplanet demographic studies, especially for understanding the …

The existence of giant planets on wide orbits () challenge planet formation theories; the core
accretion scenario has difficulty in forming them, whereas the disc instability model forms an …

As of 2019 August, among the more than 4000 confirmed exoplanets, only one has been
detected in a globular cluster (GC) M4. The scarce of exoplanet detections motivates us to …

Gravitational interactions in star-forming regions are capable of disrupting and destroying
planetary systems, as well as creating new ones. In particular, a planet can be stolen, where …

In Lammer et al.(2024), we defined Earth-like habitats (EHs) as rocky exoplanets within the
habitable zone of complex life (HZCL) on which Earth-like N2-O2-dominated atmospheres …

We report the first simulations of planetary system dynamics as affected by an embedded
cluster environment. Such environments are generally believed to be relevant for the large …

Hot Jupiters (HJ) are defined as Jupiter-mass exoplanets orbiting around their host star with
an orbital period< 10 d. It is assumed that HJ do not form in-situ but ex-situ. Recent …

The architecture and evolution of planetary systems are shaped in part by stellar flybys.
Within this context, we look at stellar encounters that are too weak to immediately destabilize …