Publication Date:
2019-08-01
Description:
We describe the tools and the underlying methods and principles for generating the spectral response functions for the four imaging instruments that were flown on the Hitomi x-ray astronomy satellite [Soft X-ray Spectrometer, or SXS; Soft X-ray Imager, or SXI, and two Hard X-ray Imagers, or HXI]. In essence, the spectral response function is a temporally and spatially averaged effective area and line-spread-function. For model-fittingx-ray spectra from an instrument, the spectral response function encapsulates the end-to-end physics of the entire system from telescope to detector, and also includes satellite attitude drift, exposure corrections, and in the case of the HXIs, drift in the telescope/detector alignment system. Accuracy in the construction of the spectral response functions is, therefore, critical to maximize the science return from the data.
Keywords:
Astrophysics; Instrumentation and Photography
Type:
GSFC-E-DAA-TN69928
,
Journal of Astronomical Telescopes, Instruments, and Systems (ISSN 2329-4124) (e-ISSN 2329-4221); 4; 4; 048005
Format:
text
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