751 citations
- Max Planck Institute of Quantum OpticsDE23 papers
- Centre National de la Recherche ScientifiqueFR11 papers
- Institut für SonnenphysikDE7 papers
- Ludwig-Maximilians-Universität MünchenDE7 papers
- European Southern ObservatoryCL5 papers
- Physikalisch-Technische BundesanstaltDE5 papers
- Université Pierre-et-Marie-CurieFR5 papers
- École Polytechnique Fédérale de LausanneCH4 papers
- Instituto de Astrofísica de CanariasES4 papers
- Laboratoire Kastler BrosselFR4 papers
- Leibniz University HannoverDE4 papers
- Ferdinand-Braun-InstitutDE3 papers
3 papers · 1 filter
Convective blueshifts in the solar atmosphere, I. Absolute measurements with LARS of the spectral lines at 6302 Å
Johannes Löhner-Böttcher, Wolfgang Schmidt, Franziska Stief +2
The solar convection manifests as granulation and intergranulation at the solar surface. In the photosphere, convective motions induce differential Doppler shifts to spectral lines…
LARS - An Absolute Reference Spectrograph for solar observations, Upgrade from a prototype to a turn-key system
J. Loehner-Boettcher, W. Schmidt, H. -P. Doerr +4
LARS is an Absolute Reference Spectrograph designed for ultra-precise solar observations. The high-resolution echelle spectrograph of the Vacuum Tower Telescope is supported by a s…
JOKARUS - Design of a compact optical iodine frequency reference for a sounding rocket mission
Vladimir Schkolnik, Klaus Döringshoff, Franz Balthasar Gutsch +9
We present the design of a compact absolute optical frequency reference for space applications based on hyperfine transitions in molecular iodine with a targeted fractional frequen…