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PEPSI, the High-Resolution Optical-IR Spectrograph for the LBT

  • Michael I. Andersen
  • Klaus G. Strassmeier
  • Axel Hoffman
  • Manfred Woche
  • Paolo Spano
Conference paper
Part of the ESO Astrophysics Symposia book series (ESO)

Abstract

PEPSI is a high resolution fibre feed optical-IR polarimetric echelle spectrograph for the Large Binocular Telescope (LBT). PEPSI utilizes the two 8.4m LBT apertures to simultaneously record four polarization states at a resolution of 120.000. The extension of the coverage towards the IR is mainly motivated by the larger Zeeman splitting of IR lines, which would allow to study weaker/fainter magnetic structures on stars. The two optical arms, which also have an integral light mode with R up to 300.000, are under construction, while the IR arm is being designed.

Keywords

Spectral Coverage Stray Light Ultra High Resolution Entrance Aperture Strehl Ratio 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Authors and Affiliations

  • Michael I. Andersen
    • 1
  • Klaus G. Strassmeier
    • 1
  • Axel Hoffman
    • 1
  • Manfred Woche
    • 1
  • Paolo Spano
    • 2
  1. 1.Astrophysikalisches Institut Potsdam, 14482 PotsdamGermany
  2. 2.INAF – Osservatorio Astronomico di Palermo, 90134 PalermoItaly

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