PMAS: The Potsdam Multi-Aperture Spectrophotometer. II. The Wide Integral Field Unit PPak

Kelz, Andreas; Verheijen, Marc A. W.;Roth, Martin M.; Bauer, Svend M.; Becker, Thomas;Paschke, Jens; Popow, Emil; Sánchez, Sebastian F.;Laux, Uwe. PMAS: The Potsdam Multi-Aperture Spectrophotometer. II. The Wide Integral Field Unit PPak. The Publications of the Astronomical Society of the Pacific. 2006, Vol. Volume 118, Issue 839, pp. 129-145, p. -2006.

on the sky, with a filling factor of 60%. The operational wavelength range is from 400 to 900 nm. The PPak IFU, together with the PMAS spectrograph, are intended for the study of extended, low surface brightness objects, offering an optimization of total light-collecting power and spectral resolution. This paper describes the instrument design, the assembly, integration, and tests, the commissioning and operational procedures, and presents the measured performance at the telescope.