Grating Spectroscopy
If new calibration has been applied to the event file, the grating spectrum should be re-extracted as well. It is then possible to build grating response files (gARF, gRMF) in order to model and fit the data.
- Chandra Grating Analysis Page
- WebGUIDE: Interactive GUIDE for ATOMDB
- Chandra Grating Data Archive and Catalog (TGCat): a browsable interface to analysis-quality spectral products.
-
The chandra_repro script may be
used to easily reprocess Chandra datasets.
Problems with the Zero Order:
LETG/ACIS:
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LETG/ACIS Grating Spectra
![[Updated]](../imgs/updated.gif)
(8 Jul 2024)
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Grating Spectra for Multiple Sources - ACIS
(8 Jul 2024)
- ACIS-S Grating RMFs
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LETG/ACIS-S Grating ARFs
(8 Jul 2024)
- Grouping a Grating Spectrum
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LETG/ACIS Grating Spectra
LETG/HRC-S:
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LETG/HRC-S Grating Spectra
(8 Feb 2022)
- Applying Customized Background Regions to LETG/HRC-S Observations
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Grating Spectra for Multiple Sources - HRC
(8 Jul 2024)
- Higher-order Responses for HRC-S/LETG Spectra
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HRC Grating RMFs
(24 Apr 2013)
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LETG/HRC-S Grating ARFs
(8 Jul 2024)
- Grouping a Grating Spectrum
- The calibration page Optimized LETG/HRC-S Extraction Region and Recalibrated EEFRACs contains information needed to use the detilt, dewiggle, and symmetrize scripts.
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LETG/HRC-S Grating Spectra
LETG/HRC-I:
Combining Spectra & Preparation for Fitting:
Modeling & Fitting Grating Data with Sherpa
(from the Sherpa analysis threads):