This page is for the old CIAO 4.15 release. Please see the CIAO home page for the latest release.

1st Chandra/CIAO Workshop Hands-on Session

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Practical Information:

• There are 12 workstations called "DEMO1, DEMO2, ... DEMO12" and two people should work at each workstation.
• Users should log-in as "cxcguest1", "cxcguest2", etc. on the corresponding machines (passwords will be revealed on Tuesday).
• All the "cxcguest" accounts are already setup to run CIAO2.0.2. On every window where you expect to run CIAO, you should simply type "ciao". For example:

  cxcguest-1: ciao
  Setting up to use release version of CIAO, from /soft/ciao
  I will automatically update the following files in your $HOME dir:
                  .CXCdefaults
  if they are older than the files in the distribution, however backup
  copies will be saved with a .bak extension.
  CIAO configuration complete!
  

• Some useful checks:

  cxcguest-2: ciao -v
  Your CIAO version is: 2.0.2
  Your CXC_PROP_CLI version is: 3.0
  
  cxcguest-3: echo $PDIRS
  /home/cxcguest/cxcds_param;/soft/ciao/param
  
  cxcguest-4: echo $CALDB
  /soft/ciao/CALDB
  
  cxcguest-5: echo $ATOMDB
  /soft/ciao/ATOMDB
  

• The workspace is in
  /data/ciao_demo/
  12 subdirectories have been created called cxcguest1 through cxcguest12; please use the one relative to your machine.
• Chandra data useful for the analysis can be found in
  /data/ciao_demo/data
• All the CIAO scripts can be found in the directory
  /data/ciao_demo/scripts
• If you need to access CALDB files, they are in
  /soft/ciao/CALDB, which is linked to /data/CALDB/
• If you need to access ATOMDB files, they are in
  /soft/ciao/ATOMDB, which is linked to /data/axaf8/atomdb/

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Suggested Analysis Sessions:

All the threads listed below can be found from the CIAO 2.0 threads page.

• Beginners:
  Introduction To the Data Model
  Introduction To Using Prism
  Data Filtering
  Create True Color Image
  Extract an ACIS spectrum and make RMF and ARF
  Getting Started With Sherpa
  Introducing Sherpa: ASCII Data & Errors and Single-Component Source Models
  Fitting Spectral Data: FITS Data & Responses and Multi-Component Source Models
• Grating analysis:
  Examining PHA2 Files
  Obtain Grating Spectra
  Create Grating ARFs
  Extract Coadded and Grouped Nth-Order Source & Background Spectra and ARFs
  Fitting Grating Data
  GUIDE: Fitting and Identifying Spectral Lines
  Extended Source Analysis:
• Extended Source Analysis:
  Create True Color Image
  Obtain a Radial Profile
  Exposure Map
• Source Detection:
  Exposure Maps
  Source Detection
  Estimate the Number of Counts in a Source