Stability of the FOCES spectrograph using an astro-frequency comb as calibrator

Brucalassi, Anna; Grupp, Frank; Kellerm, Hanna; Wang, Liang; Lang-Bardl, Florian; Baisert, Nils; Hu, Shao Ming; Hopp, Ulrich and Bender, Ralf (2016): Stability of the FOCES spectrograph using an astro-frequency comb as calibrator. Ground-Based and Airborne Instrumentation for Astronomy VI, Edinburgh, United Kingdom, 26-30 June 2016. Proceedings of SPIE. Vol. 9908, 99085W Bellingham, Washington: SPIE.

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.

• Item Type: Conference or Workshop Item (Report)
• Faculties: Physics
• Subjects: 500 Science > 530 Physics
• ISSN: 0277-786X
• Place of Publication: Bellingham, Washington
• Annotation: ISBN 978-1-5106-0195-6. Teilkonferenz von: SPIE Astronomical Telescopes + Instrumentation
• Language: English