Pressure and temperature stabilization of an existing Echelle spectrograph

Frank Grupp; Thomas Udem; Ronald Holzwarth; Florian Lang-Bardl; Ulrich Hopp; Shao-Ming Hu; Anna Brucalassi; Wang Liang; Ralf Bender

doi:10.1117/12.856653

20 July 2010 Pressure and temperature stabilization of an existing Echelle spectrograph

Frank Grupp, Thomas Udem, Ronald Holzwarth, Florian Lang-Bardl, Ulrich Hopp, Shao-Ming Hu, Anna Brucalassi, Wang Liang, Ralf Bender

Author Affiliations +

Proceedings Volume 7735, Ground-based and Airborne Instrumentation for Astronomy III; 773573 (2010) https://doi.org/10.1117/12.856653
Event: SPIE Astronomical Telescopes + Instrumentation, 2010, San Diego, California, United States

Abstract

The Echelle spectrograph FOCES,1 that was operated at the 2.2m Calar Alto telescope between 1995 and 2009 will be 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. The layout of this laboratory experiment will be presented in this paper together with the required and desired spectrograph stability with respect to both pressure and temperature. We will present technical concepts how to reach our stabilization goal as well as first results from the spectrograph thermal stabilization efforts.

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Frank Grupp, Thomas Udem, Ronald Holzwarth, Florian Lang-Bardl, Ulrich Hopp, Shao-Ming Hu, Anna Brucalassi, Wang Liang, and Ralf Bender "Pressure and temperature stabilization of an existing Echelle spectrograph", Proc. SPIE 7735, Ground-based and Airborne Instrumentation for Astronomy III, 773573 (20 July 2010); https://doi.org/10.1117/12.856653

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