Space debris is becoming an increased threat to the future use of space orbits. In order to counteract this threat, the field of Space Situational Awareness (SSA), and the sub-field Space Surveillance and Tracking (SST), have been developed to gather knowledge about the space debris and satellites surrounding Earth. The orbit of a satellite can be determined by acquiring images of the...
After the detection of numerous planetary systems outside of our own Solar System which tend to be extremely diverse and which show a wide range of evolutionary states, the focus is now shifting to a characterization of their formation and evolution, as well as to the architecture of planetary systems and planet habitability.
One of the astonishing discoveries in exoplanet research has been...
Statistical studies of exoplanet populations have shown that planets in the 2-3 $R_{\oplus}$ size range, the so-called mini-Neptunes, are one of the most common types of planets.
In this talk I will highlight some of the challenges associated with the detection and characterisation of such planets in transit and radial velocity timeseries as illustrated by the case of the TOI-1260 system....
The Planetary Spectrum Generator (PSG) is an online tool that synthesizes spectra of planetary atmospheres for a broad range of wavelengths (10nm to 100mm) simulating several space- or ground-based observatories/instruments. The 3D GlobES application of PSG allows us to synthesize observations of exoplanets based on different 3D General Circulation Models (GCM). In particular, we use GlobES to...
The discovery of planets around other stars (exoplanets) has fundamentally changed our view of the possible types of planets. With the discovery of a diverse population of planets, a class of highly irradiated gas giants has emerged that are unlike any planet in our solar system.
Ultra-hot Jupiters offer the opportunity to learn about the chemistry, thermal structure and dynamics in...
For the first time in over 60 years a meteorite was recovered in Sweden after an observed fall. The fall area was identified through a collaboration between the meteor camera networks in Norway, Finland, Denmark and Sweden. After a few weeks of searches, a 14-kg iron meteorite was found close to the small town of Ådalen (near Enköping). This meteorite is the first iron ever to be recovered...
