4MOST: the high-resolution spectrograph

W. Seifert; W. Xu; P. Buschkamp; C. Feiz; A. Saviauk; S. Barden; A. Quirrenbach; H. Mandel

doi:10.1117/12.2233252

9 August 2016 4MOST: the high-resolution spectrograph

W. Seifert, W. Xu, P. Buschkamp, C. Feiz, A. Saviauk, S. Barden, A. Quirrenbach, H. Mandel

Proceedings Volume 9908, Ground-based and Airborne Instrumentation for Astronomy VI; 990890 (2016) https://doi.org/10.1117/12.2233252
Event: SPIE Astronomical Telescopes + Instrumentation, 2016, Edinburgh, United Kingdom

Abstract

4MOST (4-meter Multi-Object Spectroscopic Telescope) is a wide-field, fiber-feed, high-multiplex spectroscopic survey facility to be installed on the 4-meter ESO telescope VISTA in Chile. It consists of two identical low resolution spectrographs and one high resolution spectrograph. The instrument is presently in the preliminary design phase and expected to get operational end of 2022. The high resolution spectrograph will afford simultaneous observations of up to 812 targets - over a hexagonal field of view of ~ 4.1 sq.degrees on sky - with a spectral resolution R>18,000 covering a wavelength range from 393 to 679nm in three channels. In this paper we present the optical and mechanical design of the high resolution spectrograph (HRS) as prepared for the review at ESO, Garching. The expected performance including the highly multiplexed fiber slit concept is simulated and its impact on the optical performance given. We show the thermal and finite element analyses and the resulting stability of the spectrograph under operational conditions.

Citation Download Citation

W. Seifert, W. Xu, P. Buschkamp, C. Feiz, A. Saviauk, S. Barden, A. Quirrenbach, and H. Mandel "4MOST: the high-resolution spectrograph", Proc. SPIE 9908, Ground-based and Airborne Instrumentation for Astronomy VI, 990890 (9 August 2016); https://doi.org/10.1117/12.2233252

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available