9 August 2016 Stability of the FOCES spectrograph using an astro-frequency comb as calibrator
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Abstract
We present the results of a series of measurements conducted using the upgraded Fiber Optic Cassegrain Echelle Spectrograph (FOCES)1 intended to be operated at the 2.0 m Fraunhofer Telescope at the Wendelstein Observatory (Germany) in combination with a laser frequency comb as calibrator. Details about the laboratory set-up of the system integrated with FOCES are shown. Different analysis techniques are applied to investigate the calibration precision and the medium-long term stability of the system in term of changes in stellar radial velocity.
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Anna Brucalassi, Anna Brucalassi, Frank Grupp, Frank Grupp, Hanna Kellermann, Hanna Kellermann, Liang Wang, Liang Wang, Florian Lang-Bardl, Florian Lang-Bardl, Nils Baisert, Nils Baisert, Shao Ming Hu, Shao Ming Hu, Ulrich Hopp, Ulrich Hopp, Ralf Bender, Ralf Bender, } "Stability of the FOCES spectrograph using an astro-frequency comb as calibrator", Proc. SPIE 9908, Ground-based and Airborne Instrumentation for Astronomy VI, 99085W (9 August 2016); doi: 10.1117/12.2231395; https://doi.org/10.1117/12.2231395
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