IRCS echelle spectroscopy

The IRCS echelle provides a pixel scale of 55 mas along the slit and slit widths of 0.14'', 0.27'' (providing half the spectral resolution), or 0.54'' (providing one-quarter the spectral resolution). The camera can be used as a slit viewer.

An ALADDIN III array was installed in the spectrograph section during August 2003, providing improved performance, especially for faint sources.

• Echelle configurations and sensitivities
• Wavelength coverage of the echelle orders
• Sample images and response functions [PDF (9Mb)][HTML]
• Echelle Simulator v.0.9.1 for IRCS [README][Package] (New)
• Guide to exposure times