Witnessing the genesis of exotrojans in PDS 70

The planets in the Solar System are known to be accompanied by co-orbital asteroids populating the Lagrangian points L₄ and L₅, the so-called Trojans. Theoretically, these locations could host bodies as massive as the main planet. The search for siblings of exoplanets in these peculiar zeroth order of resonance has already begun. Hydrodynamical simulations show that dust trapping in Lagrangian points is a natural product of planet formation, which could eventually be the seeds of Trojans. In this poster, we present a pilot study to investigate the presence of Trojans in PDS~70, the only system with two confirmed protoplanets. Our main result is a tentative detection of dust accumulation in one of the Lagrangian points of the planet PDS~70\,b. Future observations will allow to confirm the nature of our detection.