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Proceedings Paper

Pressure and temperature stabilization of an existing Echelle spectrograph III
Author(s): Anna Brucalassi; Tobias Feger; Frank Grupp; Florian Lang-Bardl; Shao Ming Hu; Ulrich Hopp; Ralf Bender
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Paper Abstract

The Echelle spectrograph FOCES1 is currently located at the laboratories of Munich University Observatories under pressure and temperature stabilized conditions. It is being used as a test bed for a number of different stability issues related to high precision radial velocity spectroscopy. We utilize FOCES to study spectrograph stability, illumination stability and fiber transport stability. With this work we continue the series of papers that present our efforts to obtain temperature and pressure stabilization in the spectrograph environment. In particular we present first optical measurement results and compare them to simulations previously published. We show the movement of the image on the CCD with changes of pressure and temperature and the stability of the spot positions in the stabilized system using measurements done by a ThAr gas discharge source.

Paper Details

Date Published: 5 October 2012
PDF: 9 pages
Proc. SPIE 8446, Ground-based and Airborne Instrumentation for Astronomy IV, 84462F (5 October 2012); doi: 10.1117/12.925621
Show Author Affiliations
Anna Brucalassi, Max-Planck-Institut für extraterrestrische Physik (Germany)
Univ. Observatory Munich (Germany)
Tobias Feger, Univ. Observatory Munich (Germany)
Frank Grupp, Max-Planck-Institut für extraterrestrische Physik (Germany)
Univ. Observatory Munich (Germany)
Florian Lang-Bardl, Univ. Observatory Munich (Germany)
Shao Ming Hu, Shandong Univ. at Weihai (China)
Ulrich Hopp, Univ. Observatory Munich (Germany)
Ralf Bender, Max-Planck-Institut für extraterrestrische Physik (Germany)
Univ. Observatory Munich (Germany)


Published in SPIE Proceedings Vol. 8446:
Ground-based and Airborne Instrumentation for Astronomy IV
Ian S. McLean; Suzanne K. Ramsay; Hideki Takami, Editor(s)

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