Dezember 2025
COLLOQUIUM Sara Porras Bedmar, UHH (IExp)
Modelling the extragalactic background light
Extragalactic very high-energy (VHE; E>100 GeV) gamma rays suffer absorption in interactions with photons of the Extragalactic Background Light (EBL). The EBL is an isotropic diffuse photon field from optical to infrared wavelengths, which is difficult to measure directly due to strong foreground emission. We present niebla, the first open-source code...
COLLOQUIUM Anna Hallin, UHH (IExp)
ViaMachinae 3.0: finding stellar streams in GAIA using machine learning
Can you use an anomaly detection method from particle physics to search for stellar streams in the Milky Way? The answer is yes! In ViaMachinae 3.0, we build on the previous iterations of this stream finding method, utilizing the powerful anomaly detection algorithm CATHODE to discover close to 100 stream candidates. Among...