Imaging Spectroscopy
After extracting source and background PI or PHA spectra from an imaging observation, the appropriate response files (ARF, RMF) are created so that the data may be modeled and fit. In the case of multiple or extended sources, a weighted ARF and RMF are built for the spectral analysis.
Extracting ACIS Spectra & Creating Response Files:
Modeling & Fitting Spectral Data with Sherpa
(from the Sherpa analysis threads):- Introduction to Fitting PHA Spectra
- Changing the grouping scheme of a data set within Sherpa
- Introduction to Fitting ASCII Data with Errors: Single-Component Source Models
- Simultaneously Fitting Two Data Sets
- Simulating 1-D Data: the Sherpa FAKE_PHA Command
- Simulating Chandra ACIS-S Spectra with Sherpa
- Fitting PHA Data with Multi-Component Source Models
- Independent Background Responses
- Using A Pileup Model
![[Updated]](../imgs/updated.gif)
(13 Dec 2024)