Goodman Comparison Lamps (updated)

The SOAR Instrument Support Boxes (ISBs) contain facility calibration units containing both continuum sources for flat fielding and line sources for wavelength calibration. 

The wavelength calibration lamps normally used with the Goodman spectrograph are: HgAr, CuHeAr, Ne, and Ar.  An Fe lamp is also available.
The comparison lamps can be activated from the instrument GUI by you, or you can ask the Telescope Operator (TO) to do it for you from his technical GUI.
Note that you need to make a slow, substantial mouse click on the particular lamp in order for it to actually get the input and turn on or off (a quick click may make the green light go on or off but not turn on/off the lamp). If in doubt, check with the TO. The Fe lamp is not featured in the GUI and you need to ask the TO to rutn it ON/OFF for you. When obtaining comparison lamps, make sure you are in Spectroscopic Mode and that the TO has put the pickup mirror in.

In Figure 1 at below we show the CuHeAr arc lamp spectra for all of our pre-defined spectroscopic modes. NOTE: the 300 l/mm grating has now been replaced by the 400 l/mm grating.

In Figure 2 below we show the HgAr arc lamp spectra for all of our pre-defined spectroscopic modes. NOTE: the 300 l/mm grating has now been replaced by the 400 l/mm grating.

In the following table containing plots of the comparison lamps made with various gratings and setups. This library of comparison lamp spectra will be expanded and updated to make it include most, if not all of the setups available with the instrument.
 

Grating Setup Lamp Wavelength
Coverage of the Plot
Goodman Comparison Lamp Spectra
400 M1 HgAr 3000-7000 (Full range)
400 M1 HgAr 3000-5000 (Zoom)
400 M1 HgAr 5000-7000 (Zoom)
400 M2 HgAr 5000-9000 (Full range)
400 M2 HgAr 5000-9000 (Zoomed/split)
600 UV,Blue,Mid,Red HgAr 3600-9000 (6 plots)
600 UV,Blue,Mid CuHeAr 3600-6500
930 M1 HgAr 3000-4500 (Full range & zoom)
930 M2 HgAr 3750-5500 (Full range & zoom)
930 M3 HgAr 4750-6250 (Full range & zoom)
930 M4 HgAr 5500-7200 (Full range & zoom)
930 M5 HgAr 6400-8000 (Full range & zoom)
930 M6 HgAr 7250-8750 (Full range & zoom)
930 M2 CuHeAr 3750-5500 (Full range & zoom)
930 M3 CuHeAr 4750-6250 (Full range & zoom)
930 M4 CuHeAr 5500-7200
930 M5 CuHeAr 6400-8000
930 M6 CuHeAr 7250-8750
1200 M5 HgArNe 3600-8700 (7 plots)
1200 M1,M2,M3,M4,M5,M6,M7 CuHeAr 3600-8700 (7 plots)

Useful links:

The KPNO Spectral Atlas Central is a useful resource for comparison lamp spectra