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Universitäts-Sternwarte München
Fakultät für Physik der Ludwig-Maximilians-Universität

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VIRUS-W VIRUS-W

The IFU field spectrograph for the Wendelstein 2-m Telescope (VIRUS-W)

(on loan at the 2.7-m telescope of the McDonald Observatory, Texas)

medium resolution mode low resolution mode
Field of view 267 fibers within 150″ × 75″ 267 fibers within 150″ × 75″
Fiber size 150 μm 150 μm
Dispersion element volume-phase grating 3300 ll/mm and prisms volume-phase grating 1900 ll/mm
Resolution R 6800 2500
Resolution sigma ~18 km/s ~25 km/s
Spectra coverage 493–545 nm 475–560 nm
Detector e2v 2k×4k 15 μm e2v 2k×4k 15 μm
Last updated Jun 23 2016 by U. Hopp (hopp@usm.lmu.de)