We present NORVIS (NORdlys Versatile Imaging Spectrograph), a portable broadband imaging spectrograph developed for ground-based auroral observations. Based on the Star'Ex optical …
Auroral spectrographs such as the Auroral Spectrograph In Skibotn (ASIS) record hundreds of thousands of emission spectra, but only a few hundred can be labelled by an expert. To …
Co-authored poster (presented by G. Cessateur) extending our supervised spectra classifier to an unsupervised exploration of 328,281 ASIS spectra.
A 1D Vision Transformer classifies auroral emission spectra, and its attention maps rediscover known emission lines without any physics prior.
We examine whether Vision Transformer attention can serve as a built-in interpretability mechanism on ordered 1D scientific signals, where physical ground truth enables direct …
Poster on classifying auroral emission spectra with a 1D Vision Transformer, whose attention maps recover known emission lines without spectroscopic priors.
NORVIS (NORdlys Versatile Imaging Spectrograph) is a portable broadband imaging spectrograph for coordinated auroral observations across a network of high-latitude observatories.