IRCS grism spectroscopy

The camera section of IRCS provides a number of grisms which provide a low resolution (typically R < 1000) spectroscopic capability. Slit widths of 0.1-0.9'' are available, although there is significant light loss with the narrowest slits unless Adaptive Optics is used.

• Grism settings and sensitivities
• System efficiency and transmission curves
• Guide to exposure times
• SPICA, the Spectroscopic Integration Calculator Applet.