Grating Spectroscopy

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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.
General:
- Examining Grating Spectra and Regions: PHA2 files
- Create a Color Spectrum
Problems with the Zero Order:
- Correcting a Misplaced Zero-order Source Position
- Source Position for Grating Data with a Piled or Blocked Zero Order (28 Nov 2012)
HETG/ACIS:
- HETG/ACIS-S Grating Spectra (24 Apr 2013)
- Grating Spectra for Multiple Sources - ACIS (3 Dec 2012)
- ACIS-S Grating RMFs (24 Apr 2013)
- HETG/ACIS-S Grating ARFs (24 Apr 2013)
- Grouping a Grating Spectrum
LETG/ACIS:
- LETG/ACIS Grating Spectra (06 Jan 2012)
- Grating Spectra for Multiple Sources - ACIS (3 Dec 2012)
- ACIS-S Grating RMFs (24 Apr 2013)
- LETG/ACIS-S Grating ARFs (24 Apr 2013)
- Grouping a Grating Spectrum
LETG/HRC-S:
- LETG/HRC-S Grating Spectra (24 Apr 2013)
- Applying Customized Background Regions to LETG/HRC-S Observations (24 Apr 2013)
- Grating Spectra for Multiple Sources - HRC
- Higher-order Responses for HRC-S/LETG Spectra
- HRC Grating RMFs (24 Apr 2013)
- LETG/HRC-S Grating ARFs (24 Apr 2013)
- Grouping a Grating Spectrum
LETG/HRC-I:
- LETG/HRC-I Grating Spectra (24 Apr 2013)
- Grating Spectra for Multiple Sources - HRC
- HRC Grating RMFs (24 Apr 2013)
- LETG/HRC-I Grating ARFs (24 Apr 2013)
- Grouping a Grating Spectrum
Combining Spectra & Preparation for Fitting:
Modeling & Fitting Grating Data with Sherpa
(from the Sherpa analysis threads):

Grating Spectroscopy

General:

Problems with the Zero Order:

HETG/ACIS:

LETG/ACIS:

LETG/HRC-S:

LETG/HRC-I:

Combining Spectra & Preparation for Fitting:

Modeling & Fitting Grating Data with Sherpa (from the Sherpa analysis threads):

Modeling & Fitting Grating Data with Sherpa
(from the Sherpa analysis threads):