nAncestor: an artificial satellite-borne star for accurate frequency calibration of ground-based EPRV spectrographs

F. Pepe; M. Bugatti; A. Baur; J. Berney; E. Bozzo; C. Broeg; B. Crazzolara; A. Deep; F. Droz; J. Figueiredo; H. Haile; L. Jolissaint; S. Lecomte; J. Moerschell; Ch. Mordasini; E. Obrzud; C. Praplan; M. Sarajlic; B. Soja; M. Van den Broeck

doi:10.1117/12.3016547

26 August 2024 νAncestor: an artificial satellite-borne star for accurate frequency calibration of ground-based EPRV spectrographs

F. Pepe, M. Bugatti, A. Baur, J. Berney, E. Bozzo, C. Broeg, B. Crazzolara, A. Deep, F. Droz, J. Figueiredo, H. Haile, L. Jolissaint, S. Lecomte, J. Moerschell, Ch. Mordasini, E. Obrzud, C. Praplan, M. Sarajlic, B. Soja, M. Van den Broeck

Author Affiliations +

Proceedings Volume 13100, Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation VI; 131005W (2024) https://doi.org/10.1117/12.3016547
Event: SPIE Astronomical Telescopes + Instrumentation, 2024, Yokohama, Japan

Conference Poster

Abstract

The accuracy of state-of-the-art Extreme Precision Radial Velocity (EPRV) spectrographs depends on the access to extremely precise and stable wavelength calibration sources. There are several available calibration sources (e.g., emission lamps, laser frequency combs, reference cavities) that can be used to calibrate an astronomical spectrograph. However, the calibration as it is currently performed is always 'local'. In the proposed talk we will present the νANCESTOR concept that proposes an accurate (absolute) and common wavelength calibration for astronomical high-resolution, high-precision spectrographs by embarking an optical frequency comb on-board a satellite equipped with an actively pointing telescope and precision orbitography. This calibration satellite shall be available and serve EPRV spectrographs in all major observatories around the world.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

F. Pepe, M. Bugatti, A. Baur, J. Berney, E. Bozzo, C. Broeg, B. Crazzolara, A. Deep, F. Droz, J. Figueiredo, H. Haile, L. Jolissaint, S. Lecomte, J. Moerschell, Ch. Mordasini, E. Obrzud, C. Praplan, M. Sarajlic, B. Soja, and M. Van den Broeck "νAncestor: an artificial satellite-borne star for accurate frequency calibration of ground-based EPRV spectrographs", Proc. SPIE 13100, Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation VI, 131005W (26 August 2024); https://doi.org/10.1117/12.3016547

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