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Proceedings Paper

4MOST: 4-metre multi-object spectroscopic telescope
Author(s): Roelof S. de Jong; Olga Bellido-Tirado; Cristina Chiappini; Éric Depagne; Roger Haynes; Diana Johl; Olivier Schnurr; Axel Schwope; Jakob Walcher; Frank Dionies; Dionne Haynes; Andreas Kelz; Francisco S. Kitaura; Georg Lamer; Ivan Minchev; Volker Müller; Sebastián E. Nuza; Jean-Christophe Olaya; Tilmann Piffl; Emil Popow; Matthias Steinmetz; Ugur Ural; Mary Williams; Roland Winkler; Lutz Wisotzki; Wolfgang R. Ansorge; Manda Banerji; Eduardo Gonzalez Solares; Mike Irwin; Robert C. Kennicutt; Dave King; Richard G. McMahon; Sergey Koposov; Ian R. Parry; David Sun; Nicholas A. Walton; Gert Finger; Olaf Iwert; Mirko Krumpe; Jean-Louis Lizon; Mainieri Vincenzo; Jean-Philippe Amans; Piercarlo Bonifacio; Mathieu Cohen; Patrick Francois; Pascal Jagourel; Shan B. Mignot; Frédéric Royer; Paola Sartoretti; Ralf Bender; Frank Grupp; Hans-Joachim Hess; Florian Lang-Bardl; Bernard Muschielok; Hans Böhringer; Thomas Boller; Angela Bongiorno; Marcella Brusa; Tom Dwelly; Andrea Merloni; Kirpal Nandra; Mara Salvato; Johannes H. Pragt; Ramón Navarro; Gerrit Gerlofsma; Ronald Roelfsema; Gavin B. Dalton; Kevin F. Middleton; Ian A. Tosh; Corrado Boeche; Elisabetta Caffau; Norbert Christlieb; Eva K. Grebel; Camilla Hansen; Andreas Koch; Hans-G. Ludwig; Andreas Quirrenbach; Luca Sbordone; Walter Seifert; Guido Thimm; Trifon Trifonov; Amina Helmi; Scott C. Trager; Sofia Feltzing; Andreas Korn; Wilfried Boland
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Paper Abstract

The 4MOST consortium is currently halfway through a Conceptual Design study for ESO with the aim to develop a wide-field ( < 3 square degree, goal < 5 square degree), high-multiplex ( < 1500 fibres, goal 3000 fibres) spectroscopic survey facility for an ESO 4m-class telescope (VISTA). 4MOST will run permanently on the telescope to perform a 5 year public survey yielding more than 20 million spectra at resolution R∼5000 (λ=390–1000 nm) and more than 2 million spectra at R~20,000 (395–456.5 nm and 587–673 nm). The 4MOST design is especially intended to complement three key all-sky, space-based observatories of prime European interest: Gaia, eROSITA and Euclid. Initial design and performance estimates for the wide-field corrector concepts are presented. Two fibre positioner concepts are being considered for 4MOST. The first one is a Phi-Theta system similar to ones used on existing and planned facilities. The second one is a new R-Theta concept with large patrol area. Both positioner concepts effectively address the issues of fibre focus and pupil pointing. The 4MOST spectrographs are fixed configuration two-arm spectrographs, with dedicated spectrographs for the high- and low-resolution fibres. A full facility simulator is being developed to guide trade-off decisions regarding the optimal field-of-view, number of fibres needed, and the relative fraction of high-to-low resolution fibres. The simulator takes mock catalogues with template spectra from Design Reference Surveys as starting point, calculates the output spectra based on a throughput simulator, assigns targets to fibres based on the capabilities of the fibre positioner designs, and calculates the required survey time by tiling the fields on the sky. The 4MOST consortium aims to deliver the full 4MOST facility by the end of 2018 and start delivering high-level data products for both consortium and ESO community targets a year later with yearly increments.

Paper Details

Date Published: 5 October 2012
PDF: 15 pages
Proc. SPIE 8446, Ground-based and Airborne Instrumentation for Astronomy IV, 84460T (5 October 2012); doi: 10.1117/12.926239
Show Author Affiliations
Roelof S. de Jong, Leibniz-Institut für Astrophysik Potsdam (Germany)
Olga Bellido-Tirado, Leibniz-Institut für Astrophysik Potsdam (Germany)
Cristina Chiappini, Leibniz-Institut für Astrophysik Potsdam (Germany)
Éric Depagne, Leibniz-Institut für Astrophysik Potsdam (Germany)
Roger Haynes, Leibniz-Institut für Astrophysik Potsdam (Germany)
innoFSPEC (Germany)
Diana Johl, Leibniz-Institut für Astrophysik Potsdam (Germany)
Olivier Schnurr, Leibniz-Institut für Astrophysik Potsdam (Germany)
Axel Schwope, Leibniz-Institut für Astrophysik Potsdam (Germany)
Jakob Walcher, Leibniz-Institut für Astrophysik Potsdam (Germany)
Frank Dionies, Leibniz-Institut für Astrophysik Potsdam (Germany)
Dionne Haynes, Leibniz-Institut für Astrophysik Potsdam (Germany)
innoFSPEC (Germany)
Andreas Kelz, Leibniz-Institut für Astrophysik Potsdam (Germany)
Francisco S. Kitaura, Leibniz-Institut für Astrophysik Potsdam (Germany)
Georg Lamer, Leibniz-Institut für Astrophysik Potsdam (Germany)
Ivan Minchev, Leibniz-Institut für Astrophysik Potsdam (Germany)
Volker Müller, Leibniz-Institut für Astrophysik Potsdam (Germany)
Sebastián E. Nuza, Leibniz-Institut für Astrophysik Potsdam (Germany)
Jean-Christophe Olaya, Leibniz-Institut für Astrophysik Potsdam (Germany)
innoFSPEC (Germany)
Tilmann Piffl, Leibniz-Institut für Astrophysik Potsdam (Germany)
Emil Popow, Leibniz-Institut für Astrophysik Potsdam (Germany)
Matthias Steinmetz, Leibniz-Institut für Astrophysik Potsdam (Germany)
Ugur Ural, Leibniz-Institut für Astrophysik Potsdam (Germany)
Mary Williams, Leibniz-Institut für Astrophysik Potsdam (Germany)
Roland Winkler, Leibniz-Institut für Astrophysik Potsdam (Germany)
Lutz Wisotzki, Leibniz-Institut für Astrophysik Potsdam (Germany)
Wolfgang R. Ansorge, RAMS-CON Management Consultants (Germany)
Manda Banerji, Univ. of Cambridge (United Kingdom)
Eduardo Gonzalez Solares, Univ. of Cambridge (United Kingdom)
Mike Irwin, Univ. of Cambridge (United Kingdom)
Robert C. Kennicutt, Univ. of Cambridge (United Kingdom)
Dave King, Univ. of Cambridge (United Kingdom)
Richard G. McMahon, Univ. of Cambridge (United Kingdom)
Sergey Koposov, Univ. of Cambridge (United Kingdom)
Ian R. Parry, Univ. of Cambridge (United Kingdom)
David Sun, Univ. of Cambridge (United Kingdom)
Nicholas A. Walton, Univ. of Cambridge (United Kingdom)
Gert Finger, European Southern Observatory (Germany)
Olaf Iwert, European Southern Observatory (Germany)
Mirko Krumpe, European Southern Observatory (Germany)
Jean-Louis Lizon, European Southern Observatory (Germany)
Mainieri Vincenzo, European Southern Observatory (Germany)
Jean-Philippe Amans, GEPI, Observatoire de Paris, CNRS, Univ. Paris Diderot (France)
Piercarlo Bonifacio, GEPI, Observatoire de Paris, CNRS, Univ. Paris Diderot (France)
Mathieu Cohen, GEPI, Observatoire de Paris, CNRS, Univ. Paris Diderot (France)
Patrick Francois, GEPI, Observatoire de Paris, CNRS, Univ. Paris Diderot (France)
Pascal Jagourel, GEPI, Observatoire de Paris, CNRS, Univ. Paris Diderot (France)
Shan B. Mignot, GEPI, Observatoire de Paris, CNRS, Univ. Paris Diderot (France)
Frédéric Royer, GEPI, Observatoire de Paris, CNRS, Univ. Paris Diderot (France)
Paola Sartoretti, GEPI, Observatoire de Paris, CNRS, Univ. Paris Diderot (France)
Ralf Bender, Univ.-Sternwarte München (Germany)
Frank Grupp, Univ.-Sternwarte München (Germany)
Hans-Joachim Hess, Univ.-Sternwarte München (Germany)
Florian Lang-Bardl, Univ.-Sternwarte München (Germany)
Bernard Muschielok, Univ.-Sternwarte München (Germany)
Hans Böhringer, Max-Planck-Institut für extraterrestrische Physik (Germany)
Thomas Boller, Max-Planck-Institut für extraterrestrische Physik (Germany)
Angela Bongiorno, Max-Planck-Institut für extraterrestrische Physik (Germany)
Marcella Brusa, Max-Planck-Institut für extraterrestrische Physik (Germany)
Tom Dwelly, Max-Planck-Institut für extraterrestrische Physik (Germany)
Andrea Merloni, Max-Planck-Institut für extraterrestrische Physik (Germany)
Kirpal Nandra, Max-Planck-Institut für extraterrestrische Physik (Germany)
Mara Salvato, Max-Planck-Institut für extraterrestrische Physik (Germany)
Johannes H. Pragt, NOVA - ASTRON (Netherlands)
Ramón Navarro, NOVA - ASTRON (Netherlands)
Gerrit Gerlofsma, NOVA - ASTRON (Netherlands)
Ronald Roelfsema, NOVA - ASTRON (Netherlands)
Gavin B. Dalton, Rutherford Appleton Lab. (United Kingdom)
Univ. of Oxford (United Kingdom)
Kevin F. Middleton, Rutherford Appleton Lab. (United Kingdom)
Ian A. Tosh, Rutherford Appleton Lab. (United Kingdom)
Corrado Boeche, Zentrum für Astronomie der Univ. Heidelberg (Germany)
Elisabetta Caffau, Zentrum für Astronomie der Univ. Heidelberg (Germany)
Norbert Christlieb, Zentrum für Astronomie der Univ. Heidelberg (Germany)
Eva K. Grebel, Zentrum für Astronomie der Univ. Heidelberg (Germany)
Camilla Hansen, Zentrum für Astronomie der Univ. Heidelberg (Germany)
Andreas Koch, Zentrum für Astronomie der Univ. Heidelberg (Germany)
Hans-G. Ludwig, Zentrum für Astronomie der Univ. Heidelberg (Germany)
Andreas Quirrenbach, Zentrum für Astronomie der Univ. Heidelberg (Germany)
Luca Sbordone, Zentrum für Astronomie der Univ. Heidelberg (Germany)
Walter Seifert, Zentrum für Astronomie der Univ. Heidelberg (Germany)
Guido Thimm, Zentrum für Astronomie der Univ. Heidelberg (Germany)
Trifon Trifonov, Zentrum für Astronomie der Univ. Heidelberg (Germany)
Amina Helmi, Kapteyn Astronomical Institute, Univ. of Groningen (Netherlands)
Scott C. Trager, Kapteyn Astronomical Institute, Univ. of Groningen (Netherlands)
Sofia Feltzing, Univ. of Lund (Sweden)
Andreas Korn, Univ. of Uppsala (Sweden)
Wilfried Boland, NOVA (Netherlands)


Published in SPIE Proceedings Vol. 8446:
Ground-based and Airborne Instrumentation for Astronomy IV
Ian S. McLean; Suzanne K. Ramsay; Hideki Takami, Editor(s)

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