The second generation VLT instrument MUSE: Science drivers and instrument design
P SOC PHOTO-OPT INS 5492 (2004) 1145-1149
Authors:
R Bacon, S Bauer, R Bower, S Cabrit, M Cappellari, M Carollo, FO Combes, R Davies, B Delabre, H Dekker, J Devriendt, S Djidel, M Duchateau, JP Dubois, E Emsellem, P Ferruit, M Franx, G Gilmore, B Guiderdoni, F Henault, N Hubin, B Jungwiert, A Kelz, M Le Louarn, I Lewis, JL Lizon, R Mc Dermid, S Morris, U Laux, O Le Fevre, B Lantz, S Lilly, J Lynn, L Pasquin, A Pecontal, PPD Popovic, A Quirrenbach, R Reiss, M Roth, M Steinmetz, R Stuik, L Wisotzki, T de Zeeuw
Abstract:
The Multi Unit Spectroscopic Explorer (MUSE) is a second generation VLT panoramic integral-field spectrograph operating in the visible wavelength range. MUSE has a field of 1x1 arcmin(2) sampled at 0.20.2 arcsec(2) and is assisted by a ground layer adaptive optics system using four laser guide stars. The simultaneous spectral range is 0.465-0.93 mum, at a resolution of Rsimilar to3000. MUSE couples the discovery potential of a large imaging device to the measuring capabilities of a high-quality spectrograph, while taking advantage of the increased spatial resolution provided by adaptive optics. This makes MUSE a unique and tremendously powerful instrument for discovering and characterizing objects that lie beyond the reach of even the deepest imaging surveys. MUSE has also a high spatial resolution mode with 7.5x7.5 arcsec(2) field of view sampled at 25 milli-arcsec. In this mode MUSE should be able to get diffraction limited data-cube in the 0.6-1 mum wavelength range. Although MUSE design has been optimized for the study of galaxy formation and evolution, it has a wide range of possible applications; e.g. monitoring of outer planets atmosphere, young stellar objects environment, supermassive black holes and active nuclei in nearby galaxies or massive spectroscopic survey of stellar fields.
