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Bibliographische Detailangaben
Hauptverfasser: Pepe, F., Bugatti, M., Baur, A., Berney, J., Bozzo, E., Broeg, C., Crazzolara, B., Deep, A., Droz, F., Figuereido, J., Haile, H., Jolissaint, L., Lecomte, S., Moerschell, J., Mordasini, Ch., Obrzud, E., Praplan, C., Sarajlic, M., Soja, B., Broeck, M. Van den
Format: Preprint
Veröffentlicht: 2025
Schlagworte:
Instrumentation and Methods for Astrophysics
Online-Zugang:https://arxiv.org/abs/2507.08413
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Inhaltsangabe:
  • 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 NuAncestor 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.

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