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

  • Surface activity of a Rossby sequence of cool Hyades stars November 27, 2025
  • PEPSI Investigation, Retrieval, and Atlas of Numerous Giant Atmospheres (PIRANGA). IV.High-Resolution Phased-Resolved Spectroscopy of The Ultra Hot Jupiter KELT-20 b November 21, 2025
  • PEPSI Investigation, Retrieval, and Atlas of Numerous Giant Atmospheres (PIRANGA). II.Phase-Resolved Cross-Correlation Transmission Spectroscopy of KELT-20b November 21, 2025
  • PEPSI investigation, retrieval, and atlas of numerous giant atmospheres (PIRANGA) –III. Composition and winds in the atmosphere of TOI-1518b November 6, 2025
  • A search for Maunder-minimum candidate stars May 9, 2025

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