4MOST low-resolution spectrograph: design and performances

Laurent, Florence; Kosmalski, Johan; Boudon, Didier; Caillier, Patrick; Daguisé, Eric; Migniau, Jean-Emmanuel; Pécontal, A.; Richard, Johan; Barden, Samuel C.; Bellido-Tirado, Olga; Frey, Steffen; Saviauk, Allar

doi:10.1117/12.2231688

Cited by 3 publications

(2 citation statements)

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“…A complete description of the 4MOST instrument can be found in Ref. [11]. Our study is here limited to a single LRS channel that is 684-950 nm trying to append two higher-resolution channels (around 10000) operating simultaneously on sub-spectral bands 684-817 and 817-950 nm respectively.…”

Section: Requirements For a Case Studymentioning

confidence: 99%

Optical design of a multi-resolution, single-shot spectrograph

Hénault

Laurent

2016

SPIE Proceedings

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Multi-object or integral field spectrographs are recognized techniques for achieving simultaneous spectroscopic observations of different or extended sky objects with a high multiplex factor. In this communication is described a complementary approach for realizing similar measurements under different spectral resolutions at the same time. We describe the basic principle of this new type of spectrometer, that is based on the utilization of an optical pupil slicer. An optical design inspired from an already studied instrument is then presented and commented for the sake of illustration. Technical issues about the pupil slicer and diffractive components are also discussed. We finally conclude on the potential advantages and drawbacks of the proposed system.

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Section: Requirements For a Case Studymentioning

confidence: 99%

Optical design of a multi-resolution, single-shot spectrograph

Hénault

Laurent

2016

SPIE Proceedings

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“…2. The preliminary designs of the two spectrographs are further described in Laurent et al (2016) and Seifert et al (2016). A complete list of papers from the 4MOST consortium can be found at https://www.4most.eu/cms/ publications/.…”

Section: A Brief Introduction To the 4most Facilitymentioning

confidence: 99%

Galactic Archeology with 4MOST

et al. 2017

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4MOST is a new wide-field, high-multiplex spectroscopic survey facility for the VISTA telescope of ESO. Starting in 2022, 4MOST will deploy more than 2400 fibres in a 4.1 square degree field-of-view using a positioner based on the tilting spine principle. In this contribution we give an outline of the major science goals we wish to achieve with 4MOST in the area of Galactic Archeology. The 4MOST Galactic Archeology surveys have been designed to address long-standing and far-reaching problems in Galactic science. They are focused on four major themes: 1) Near-field cosmology tests, 2) Chemo-dynamical characterisation of the major Milky Way stellar components, 3) The Galactic Halo and beyond, and 4) Discovery and characterisation of extremely metal-poor stars.In addition to a top-level description of the Galactic surveys we provide information about how the community will be able to join 4MOST via a call for Public Spectroscopic Surveys that ESO will launch.

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