FLAMES Medusa flatfield calibrations low-resolution 427.2 nm (LR2)
Note that there is a large gradient along the dispersion axis of the CCD (y axis)
in terms of counts. The counts change from about 4,000 at the bluest part of the chip to
40,000 ADU at the reddest. The X-cut shown was at y=2500. The reason is the low-resolution
combined with the blue wavelength - changing intensity of the lamp.
Plate 1
No plate 1 data available.
Plate 2
