A New Spectrograph Platform for Auroral Studies in Svalbard
نویسندگان
چکیده
A versatile spectrograph platform has been installed by University College London at the Adventdalen Observatory in Svalbard. The platform was primarily built to support the Southampton University study of proton aurora and smallscale auroral features. It has successfully recorded the spectral profile of the Doppler broadened H-beta emission line (486.1 nm) and observed the predicted red shifted component due to proton back-scatter. The platform consists of a HiTIES (High Throughput Imaging Echelle Spectrograph) manufactured by Boston University together with two photoncounting photometers built by UCL and a narrow-field intensified video camera. All instruments are co-aligned and centered on the magnetic zenith. This combination of instruments can discriminate between spatial and temporal variations of small-scale features and thus complements measurements by narrow beam radar, which is unable to do this. The system can be controlled remotely over the Internet.
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