activity
20162026
most citedComet formation in collapsing pebble clouds. What cometary bulk density implies for the cloud mass and dust-to-ice ratio

55 citations · 83 across the 8 of their papers we have counts for

collaborators

8 papers

astro-ph.EP2026

Gas dynamics around dust asymmetries in turbulent disks

Lizxandra Flores-Rivera, Natascha Manger, Michiel Lambrechts +4

High-resolution ALMA observations have revealed asymmetric dust crescents in several protoplanetary disks, suggesting efficient dust trapping mechanisms potentially linked to gas v…

astro-ph.EP2026

From planetesimals to planets with N-body simulations in the giant-planet formation region

Sebastian Lorek, Michiel Lambrechts

The cores of wide-orbit giant planets can form via pebble accretion if large planetesimals form in the outer regions of protoplanetary discs at sufficiently early times. Streaming…

astro-ph.EP2025★ 7 cited

Super-Earth formation in systems with cold giants

Claudia Danti, Michiel Lambrechts, Sebastian Lorek

Around our Sun, terrestrial planets did not grow beyond Earth in mass, while super-Earths are found to orbit approximately every other solar-like star. It remains unclear what divi…

astro-ph.EP2024★ 5 cited

UV-processing of icy pebbles in the outer parts of VSI-turbulent disks

Lizxandra Flores-Rivera, Michiel Lambrechts, Sacha Gavino +4

Icy dust particles emerge in star-forming clouds and are subsequently incorporated in protoplanetary disks, where they coagulate into larger pebbles up to mm in size. In the disk m…

astro-ph.EP2024

Formation of flattened planetesimals by gravitational collapse of rotating pebble clouds

Sebastian Lorek, Anders Johansen

Planetesimals are believed to form by the gravitational collapse of aerodynamically concentrated clumps of pebbles. Many properties of the objects in the cold classical Kuiper belt…

astro-ph.EP2022★ 16 cited

Growing the seeds of pebble accretion through planetesimal accretion

Sebastian Lorek, Anders Johansen

We explore the growth of planetary embryos by planetesimal accretion up to and beyond the point where pebble accretion becomes efficient at the so-called Hill-transition mass. Both…

astro-ph.EP2020

A close-encounter method for simulating the dynamics of planetesimals

Sebastian Lorek, Anders Johansen

The dynamics of planetesimals plays an important role in planet formation, because their velocity distribution sets the growth rate to larger bodies. When planetesimals form in pro…

astro-ph.EP2016★ 55 cited

Comet formation in collapsing pebble clouds. What cometary bulk density implies for the cloud mass and dust-to-ice ratio

S. Lorek, B. Gundlach, P. Lacerda +1

Comets are remnants of the icy planetesimals that formed beyond the ice line in the Solar Nebula. Growing from micrometre-sized dust and ice particles to km-sized objects is, howev…