de Jong, Roelof S, Bellido-Tirado, Olga, Brynnel, Joar G, Amini, Aida Ezzati, Frey, Steffen, Fuesslein, Christine, Gaebler, Miklos, Giannone, Domenico, Johl, Diana, Kuba, Silke, Lemke, Ulrike, Micheva, Genoveva, Saviauk, Allar, Loveday, Jonathan, Collaboration, 4MOST and others, (2022) 4MOST: the 4-metre multi-object spectroscopic telescope project in the assembly, integration and test phase. SPIE ASTRONOMICAL TELESCOPES + INSTRUMENTATION, Montreal, Quebec, Canada, 17-23 July 2022. Published in: Ground-Based and Airborne Instrumentation for Astronomy IX. 12184 e1218414. SPIE ISSN 0277-786X

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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.

Item Type:	Conference Proceedings
Keywords:	Wide-field multi-object spectrograph facility, VISTA telescope, tilting-spine fibre postioner, wide field corrector, facility simulator, fibre-fed spectrographs, science operations, survey observing strategy
Schools and Departments:	School of Mathematical and Physical Sciences > Physics and Astronomy
Research Centres and Groups:	Astronomy Centre
SWORD Depositor:	Mx Elements Account
Depositing User:	Mx Elements Account
Date Deposited:	10 Jan 2023 10:32
Last Modified:	10 Jan 2023 10:32
URI:	http://sro.sussex.ac.uk/id/eprint/110055

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