JWST as a Planetary Defense Asset: The Case of 2024 YR4
The asteroid 2024 YR4 was discovered in late December 2024, and over the next several weeks as its orbit was refined its estimated probability of an Earth...
We present JWST images of NGC 6720 (the Ring Nebula), covering wavelengths from 1.6 μm to 25 μm. The bright shell is strongly fragmented with some 20 000 dense...
JWST observations of Chiron: A unique active Centaur beyond 18 AU
Chiron is the second-largest Centaur, with an effective diameter of 210 km, and is among the most well-studied minor bodies in the middle and outer Solar System...
JWST Observations of Potentially Hazardous Asteroid 2024 YR4
The destructive power of an impacting asteroid is primarily estimated by knowledge of its size. Asteroid 2024 YR4 reached a peak 2032 impact probability with...
We present JWST/MIRI MRS spectroscopy of three Seyfert AGN in which we compare their nuclear Polycyclic Aromatic Hydrocarbons (PAHs) emission with that of star...
K Band Integrated Spectroscopy of Galactic Globular Clusters
Globular clusters (GCs) play an essential role in understanding the star formation history of galaxies. At the same time GCs are the best candidates to check...
Apart from the solar core, the overshoot layer below the convective zone is the layer where some discrepancies between the standard and seismic solar models...
Thousands of RR Lyrae stars have been observed by the Kepler space telescope so far. We developed a photometric pipeline tailored to the light variations of...