4MOST: the 4-metre multi-object spectroscopic telescope project in the 
assembly, integration and test phase

de Jong, Roelof S.; Bellido-Tirado, Olga; Brynnel, Joar G.; Amini, Aida Ezzati; Frey, Steffen; Füßlein, Christine; Gäbler, Miklos; Giannone, Domenico; Johl, Diana; Kuba, Silke; Lemke, Ulrike; Micheva, Genoveva; Saviauk, Allar; Steinmetz, Matthias; Walcher, Jakob C.; Winkler, Roland; Lind, Karin; Loveday, Jonathan; Feltzing, Sofia; McMahon, Richard; Mainieri, Vincenzo; Pirard, Jean-François; Bensby, Thomas; Bergemann, Maria; Chiappini, Cristina; Christlieb, Norbert; Cioni, Maria-Rosa L.; Comparat, Johan; Driver, Simon; Hook, Isobel; Irwin, Mike; Kneib, Jean-Paul; Liske, Jochen; Merloni, Andrea; Minchev, Ivan; Richard, Johan; Starkenburg, Else; Sullivan, Mark; Worley, Clare; Gaessler, Wolfgang; Laurent, Florance; Pragt, Johan; Remillieux, Alban; Rothmaier, Florian; Smedley, Scott; Stilz, Ingo; Walton, Nicholas; Alexander, David M.; Church, Ross; Croom, Scott; Davies, Luke J.; Heneka, Caroline; Kacharov, Nikolay; Knoche, Jörg; Kordopatis, Georges; Krumpe, Mirko; Martell, Sarah; Norberg, Peder; Pelisoli, Ingrid; Sharma, Sanjib; Storm, Jesper; Tempel, Elmo

doi:10.1117/12.2628965

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4MOST: the 4-metre multi-object spectroscopic telescope project in the assembly, integration and test phase

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Comparat, Johan
High Energy Astrophysics, MPI for Extraterrestrial Physics, Max Planck Society;

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Merloni, Andrea
High Energy Astrophysics, MPI for Extraterrestrial Physics, Max Planck Society;

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Citation

de Jong, R. S., Bellido-Tirado, O., Brynnel, J. G., Amini, A. E., Frey, S., Füßlein, C., et al. (2022). 4MOST: the 4-metre multi-object spectroscopic telescope project in the assembly, integration and test phase. In Ground-Based and Airborne Instrumentation for Astronomy IX. USA: SPIE-INT SOC OPTICAL ENGINEERING. doi:10.1117/12.2628965.

Cite as: https://hdl.handle.net/21.11116/0000-000C-9DFF-5

Abstract

4MOST is a new high-multiplex, wide-field spectroscopic survey facility under construction for ESO's 4m-VISTA telescope at Paranal, Chile. Its key specifications are: a large field of view of 4.4 square degrees, a high multiplex fibre positioner based on the tilting spine principle that positions 2436 science fibres in the focal surface of which 1624 fibres go to two low-resolution optical spectrographs (R = λ/Δλ ~ 6500) and 812 fibres transfer light to the high-resolution optical spectrograph (R ~ 20,000). Currently, almost all subsystems are completed and full testing in Europe will be finished in spring 2023, after which 4MOST will be shipped to Chile. An overview is given of instrument construction and capabilities, the planned science of the consortium and the recently selected community programmes, and the unique operational scheme of 4MOST.