Laser Absolute Reference Spectrograph (LARS)

Recent data published

The Leibniz-Institute for Solar Physics (KIS) has extended its public archive of solar data with data acquired by the Laser Absolute Reference Spectrograph (LARS); (Doerr 2015; Löhner-Böttcher et al. 2017) instrument at the VTT. LARS allows for observations of the spectrum in a limited spatial region of the Sun at an absolute wavelength scale. With its high spectral and temporal resolution, it is ideally suited to perform high accuracy investigations of solar spectra. Further information is available here.

The published data consist of approximately 600 data sets taken during observation campaigns focused on convective blueshift in the solar atmosphere and on dynamics in sunspot umbrae. The data search is based on parameters such as dates, wavelengths and helioprojective coordinates from the search form. The user can then select one or multiple observations from the resulting list and download the science ready FITS data as a tar file.

As the archive is in beta-state, we invite the community to send us feedback on possible bugs and/or feature requests: sdc@leibniz-kis.de