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Thomas Bensby. Profile photo.

Thomas Bensby

Senior lecturer

Thomas Bensby. Profile photo.

4MOST Scientific Operations


  • C.~J. Walcher
  • Manda Banerji
  • Chiara Battistini
  • C.~P.~M. Bell
  • Olga Bellido-Tirado
  • Thomas Bensby
  • Joachim M. Bestenlehner
  • Thomas Boller
  • Joar Brynnel
  • A. R. Casey
  • Cristina Chiappini
  • N. Christlieb
  • Ross Church
  • M. -R.~L. Cioni
  • S. Croom
  • Johan Comparat
  • L.~J.~M. Davies
  • R. S. de Jong
  • Tom Dwelly
  • Harry Enke
  • Sofia Feltzing
  • Diane Feuillet
  • M. Fouesneau
  • Dominic Ford
  • Steffen Frey
  • Eduaro Gonzalez-Solares
  • Alain Gueguen
  • Louise Howes
  • M. Irwin
  • Joakim Klar
  • Georges Kordopatis
  • Andreas Korn
  • Mirko Krumpe
  • Iryna Kushniruk
  • M Lam
  • J. Lewis
  • Karin Lind
  • J. Liske
  • J. Loveday
  • Vincenzo Mainieri
  • S. Martell
  • Gal Matijevič
  • Richard McMahon
  • Andrea Merloni
  • D. Murphy
  • F. Niederhofer
  • P. Norberg
  • A. Pramskiy
  • M. Romaniello
  • A.~S.~G. Robotham
  • F. Rothmaier
  • Gregory Ruchti
  • Olivier Schnurr
  • Axel Schwope
  • S. Smedley
  • J. Sorce
  • E. Starkenburg
  • I. Stilz
  • Jesper Storm
  • E. Tempel
  • W. -F. Thi
  • Gregor Traven
  • M. Valentini
  • M. van den Ancker
  • N. Walton
  • R. Winkler
  • C. C. Worley

Summary, in English

The 4MOST instrument is a multi-object spectrograph that will address Galactic and extragalactic science cases simultaneously by observing targets from a large number of different surveys within each science exposure. This parallel mode of operation and the survey nature of 4MOST require some distinct 4MOST- specific operational features within the overall operations model of ESO. The main feature is that the 4MOST Consortium will deliver, not only the instrument, but also contractual services to the user community, which is why 4MOST is also described as a facility. This white paper concentrates on information particularly useful to answering the forthcoming Call for Letters of Intent.


  • Lund Observatory - Has been reorganised
  • eSSENCE: The e-Science Collaboration
  • Department of Chemistry

Publishing year










Document type

Journal article


The European Southern Observatory


  • Astronomy, Astrophysics and Cosmology




  • 4MOST - massive spectroscopic surveys of the Milky Way and the Universe


  • ISSN: 0722-6691