ESO
SINFONI Pipeline User Manual
Doc:
VLT-MAN-ESO-19500-3600
Issue:
Issue 1.0
Date:
Date 2005-10-19
Page:
15 of 88
4000 in J, H, K, respectively, and 1500 in H+K - each wavelength band fitting fully on the 2048 pixels of
the Hawaii 2RG (2kx2k) detector in the dispersion direction. The SINFONI field of view on the sky is sliced
into 32 slices. Pre-optics allow to chose the width of the slices. The choices are 250mas, 100mas and 25mas,
leading to field of views on the sky of 8"x8", 3"x3", or 0.8"x0.8" respectively. On raw frames each pixel
images a rectangular region on the sky (125x250, 50x100, or 12.5x25 mas). Each SINFONI FOV image slice
corresponds to a so called detector slitlet. Each one of the 32 slitlets is imaged onto 64 pixels of the detector.
Thus one obtains 32x64 spectra of the imaged region on the sky.
Figure 3.1.0: SPIFFI image slicer (top): The light enters through the hole in the big slicer. A stack of 32 small
mirrors, the small slicer (also shown in the sub-panel), slices the image and redirects the light towards the 32
mirrors of the big slicer, which re-arranges the slitlets into a 31 cm long pseudo-slit. (bottom). The layout of the
slitlets on a raw SPIFFI frame.
