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 version 1.3
-
![[New]](../imgs/new.gif)
Chandra Grating
Data Archive and Catalog (TGCat): a browsable
interface to analysis-quality spectral products.
General:
- Examining Grating Spectra and Regions: PHA2 files (S-Lang or Python)
- Create a Color Spectrum
Problems with the Zero Order:
HETG/ACIS:
- HETG/ACIS-S Grating Spectra
- Grating Spectra for Multiple Sources - ACIS
- ACIS-S Grating RMFs
-
HETG/ACIS-S Grating ARFs
Uses: the fullgarf script![[Updated]](../imgs/updated.gif)
(12 Jan 2009)
- Grouping a Grating Spectrum
LETG/ACIS:
- LETG/ACIS Grating Spectra
- Grating Spectra for Multiple Sources - ACIS
- ACIS-S Grating RMFs
-
LETG/ACIS-S Grating ARFs
Uses: the fullgarf script
(12 Jan 2009)
- Grouping a Grating Spectrum
LETG/HRC-S:
-
LETG/HRC-S Grating Spectra
(28 Dec 2009)
- Applying Customized Background Regions to LETG/HRC-S Observations (S-Lang or Python)
- Grating Spectra for Multiple Sources - HRC
- Higher-order Responses for HRC-S/LETG Spectra
- HRC Grating RMFs
- LETG/HRC-S Grating ARFs
- Grouping a Grating Spectrum
-
LETG/HRC-S Grating Spectra
Combining Spectra & Preparation for Fitting:
-
Extract Coadded and Grouped Nth-Order Source &
Background Spectra and ARFs
Uses: the add_grating_orders script -
Add Grating Spectra and Average ARFs
Uses: the add_grating_spectra script -
PHA Background File for XSPEC
Uses: the tg_bkg script
-
Extract Coadded and Grouped Nth-Order Source &
Background Spectra and ARFs
Modeling & Fitting Grating Data with Sherpa
(from the Sherpa analysis threads):
![[CIAO Logo]](../imgs/ciao_logo_navbar.gif){kind=logo}