4MOST - 4-metre Multi-Object Spectroscopic Telescope
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 ({\lambda}=390-1000 nm) and more than 2 million spectra at R~20,000 (395-456.5 nm & 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. We consider two fibre positioner concepts, a well-known Phi-Theta system and a new R-Theta concept with a large patrol area. The spectrographs are fixed configuration two-arm spectrographs, with dedicated spectrographs for the high- and low-resolution. 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. Mock catalogues with template spectra from seven Design Reference Surveys are simulated to verify the science requirements of 4MOST. 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.
Cite
@article{arxiv.1206.6885,
title = {4MOST - 4-metre Multi-Object Spectroscopic Telescope},
author = {Roelof S. de Jong and Olga Bellido-Tirado and Cristina Chiappini and Éric Depagne and Roger Haynes and Diane Johl and Olivier Schnurr and Axel Schwope and Jakob Walcher and Frank Dionies and Dionne Haynes and Andreas Kelz and Francisco S. Kitaura and Georg Lamer and Ivan Minchev and Volker Müller and Sebastián E. Nuza and Jean-Christophe Olaya and Tilmann Piffl and Emil Popow and Matthias Steinmetz and Uğur Ural and Mary Williams and Roland Winkler and Lutz Wisotzki and Wolfgang R. Ansorgb and Manda Banerji and Eduardo Gonzalez Solares and Mike Irwin and Robert C. Kennicutt and David King and Richard McMahon and Sergey Koposov and Ian R. Parry and Nicholas A. Walton and Gert Finger and Olaf Iwert and Mirko Krumpe and Jean-Louis Lizon and Mainieri Vincenzo and Jean-Philippe Amans and Piercarlo Bonifacio and Mathieu Cohen and Patrick Francois and Pascal Jagourel and Shan B. Mignot and Frédéric Royer and Paola Sartoretti and Ralf Bender and Frank Grupp and Hans-Joachim Hess and Florian Lang-Bardl and Bernard Muschielok and Hans Böhringer and Thomas Boller and Angela Bongiorno and Marcella Brusa and Tom Dwelly and Andrea Merloni and Kirpal Nandra and Mara Salvato and Johannes H. Pragt and Ramón Navarro and Gerrit Gerlofsma and Ronald Roelfsema and Gavin B. Dalton and Kevin F. Middleton and Ian A. Tosh and Corrado Boeche and Elisabetta Caffau and Norbert Christlieb and Eva K. Grebel and Camilla Hansen and Andreas Koch and Hans-G. Ludwig and Andreas Quirrenbach and Luca Sbordone and Walter Seifert and Guido Thimm and Trifon Trifonov and Amina Helmi and Scott C. Trager and Sofia Feltzing and Andreas Korn and Wilfried Boland},
journal= {arXiv preprint arXiv:1206.6885},
year = {2015}
}
Comments
To appear in the proceedings of the SPIE Astronomical Instrumentation + Telescopes conference, Amsterdam, 2012. 15 pages, 16 figures