counts in the images

Forums Spectroscopy Slightly confused. counts in the images

Robin Leadbeater

Hi Kate,

How do the pixel ADU counts in the raw spectrum images compare ?  ie are the counts in the spectrum image much lower in the noisy spectra? If so we can discount some sort of problem with data reduction.

If the counts in the noisy spectrum images are lower, are they lower in all the sub images or is there a lot of variation between images?