13.3

Gratings

Below, for each grating mode of STIS, we provide the basic properties of the mode, wavelength ranges covered in each central wavelength setting, sensitivities and throughputs, dispersions and plate scales. Advice on use is provided where appropriate and comparisons of the G230L, G230M MAMA modes with their G230LB, G230MB CCD counterparts are shown.

Wavelengths in this handbook and in STIS data products are always measured in vacuum conditions.

 

•	“First-Order Grating G750L”

•	“First-Order Grating G750M”

•	“First-Order Grating G430L”

•	“First-Order Grating G430M”

•	“First-Order Grating G230LB”

•	“First-Order Grating G230MB”

•	“First-Order Grating G230L”

•	“First-Order Grating G230M”

•	“First-Order Grating G140L”

•	“First-Order Grating G140M”

•	“Echelle Grating E230M”

•	“Echelle Grating E230H”

•	“Echelle Grating E140M”

•	“Echelle Grating E140H”

•

“PRISM”