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James Webb Space Telescope
Simulating Slitless Spectroscopy with NIRISS

Simulating Slitless Spectroscopy with NIRISS

Software is available to model wide-field slitless spectroscopic (WFSS) observations with NIRISS and to extract and calibrate the resulting spectra. The tools employed are the aXe package of programs, which was developed to support slitless spectroscopy with ACS and WFC2 on the Hubble Space Telescope, and Source Extractor, which builds a catalog of objects from an astronomical image.

The cookbook provides step-by-step instructions for constructing and analyzing simulated NIRISS WFSS data. The tar file provides the configuration and calibration files required by the aXe and Source Extractor routines.