Compared to the Earth, the exoplanet Kepler-78b has a similar size (1.2 R⊕) and an orbital
period a thousand times shorter (8.5 h). It is currently the smallest planet for which the mass …

Small bodies are among the best tracers of our Solar System's history. A large number of
space missions to small bodies (past and future) offer a unique opportunity to use these …

The atmospheres of a large proportion of white dwarf stars are polluted by heavy elements
that are expected to sink out of visible layers on short timescales,. This has been interpreted …

At least of white dwarfs show atmospheric pollution by metals, sometimes accompanied by
detectable circumstellar dust/gas discs or (in the case of WD 1145+ 017) transiting …

We introduce a new hybrid method to perform high-resolution tidal disruption simulations, at
arbitrary orbits. An sph code is used to simulate tidal disruptions only in the immediate …

We present follow-up photometry and spectroscopy of ZTF J0328− 1219, strengthening its
status as a white dwarf exhibiting transiting planetary debris. Using TESS and Zwicky …

We present a theoretical description of macroscopic diffusion caused by convective
overshoot in pure-hydrogen DA white dwarfs using 3D, closed-bottom, radiation …

In the past few decades, observations have revealed signatures of metals polluting the
atmospheres of white dwarfs. The diffusion time-scale for metals to sink from the atmosphere …

Many white dwarfs host disks of dust produced by disintegrating planetesimals and revealed
by infrared excesses. The disk around G29-38 was the first to be discovered and is now well …

The most direct and substantial way to measure the geochemistry of extrasolar objects is to
perform chemical autopsies on their broken-up remains. However, traditional ways of …