Constellation-X matrices

I created the latest iteration of the Constellation-X response matrices. All effective area numbers were supplied by Paul Reid (CfA) in Excel files (ipg_020105.xls and opg_020105.xls). He included all detector filter and QE efficiencies. There are two basic options. The In-Plane Grating (IPG) is the old baseline while the Off-Plane Grating (OPG) is the new proposed, higher-resolution option. The two options cover different regions of the mirror so the calorimeter effective areas also differ.

The calorimeter (XMS) response matrices assume a 2 eV FWHM resolution which is independent of energy. Effective areas were supplied from 0.25 - 10 keV and the responses were created with 0.0003 keV energy bins.

The IPG RGS matrices are for three orders with resolutions (FWHM) of 0.087, 0.0435, and 0.029 Angstroms, respectively. All three matrices cover 5 to 50 Angstroms with energy binning of 0.01, 0.005, and 0.003 Angstrom, respectively.

The OPG RGS matrices are also for three orders with wavelength-dependent resolutions supplied by Flanagan and Rasmussen (in files FR_OPG_res_m#.dat). The first order matrix covers 5 - 50 Angstroms with binning 0.003, the second order 5 - 38 with 0.0015 binning, and the third order 5 - 25.5 with binning 0.001.

All matrices have COMMENT keywords in the primary header which describe the input (and were lifted from Paul Reid's Excel files).

Keywords: Constellation-X