PEPSI

PEPSI

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  • Overview
  • Description
    • General
    • PFU
    • Spectrograph
    • Polarimeter
    • Calibration unit
  • Users
    • About
    • Observing modes
    • Observing manual for PEPSI
      • Observing manual for PEPSI PFU
      • Observing manual for PEPSIPOL
    • Data reduction
    • Current technical status
    • Exposure Time Calculator
  • SDI
    • Overview
    • Old SDI
    • SDI-POL
  • VATT
    • Overview
    • Installation of the VATT adapter
    • Observing with VATT
    • The VATT-PEPSI-TESS survey
  • Library
    • Paper I: The Sun as a star
    • Paper II: Gaia benchmark stars and other M-K standards
    • Paper III: Kepler-444
    • WallPosters
  • News
    • All news
    • Publications
    • Announcements
    • Large datasets
      • PETS
      • Hyades ZDI
      • VPNEP
    • First light
    • Technical Notes
  • Contact

Contact

PESPI team group photo (2013).
PESPI team group photo (2013).

The P.I. of PEPSI is Prof. Dr. Klaus G. Strassmeier.  The project scientist is Dr. Ilya Ilyin, and the instrument scientist is Dr. Michael Weber. 

AIP instrument page

Latest news

  • Does the solar oxygen abundance change over the solar cycle? An investigation into activity-induced variations of the O I infrared triplet January 24, 2026
  • Surface image and activity-corrected orbit of the RS CVn binary HR7275. Disentangling activity tracers. January 5, 2026
  • Untangling the Sources of Abundance Dispersion in Low-metallicity Stars II:Neutron Capture Elements January 5, 2026
  • Elemental abundance pattern and temperature inversion on thedayside of HAT-P-70b observed with CARMENES and PEPSI January 5, 2026
  • Surface activity of a Rossby sequence of cool Hyades stars November 27, 2025
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