4 September 2002
The CIAO documentation team is pleased to announce a major re-design and
several additions to the CIAO web site at
http://cxc.harvard.edu/ciao
Please send comments or suggestions for improvement and expansion to the
CXC HELPDESK at
http://cxc.harvard.edu/helpdesk/
~ Antonella Fruscione, for the CIAO Docs team
Highlights:
-----------
- Re-design of the CIAO web site and greater multi-browser compatibility
- Two new sets of documents have been added: "Analysis Guides" and "Why?
Topics"
- New and Updated threads
- Re-organized and improved AHELP, FAQ, and DICTIONARY pages
- PDF version of each page available
Details:
--------
1. Analysis Guides:
http://cxc.harvard.edu/ciao/guides/
As the number of CIAO science threads approaches one hundred, there is a
great demand for a roadmap on how to apply them to the data. The
Analysis Guides were written for that purpose. Each guide takes a
certain instrument configuration (ACIS) or type of analysis (extended
sources) and lists the relevant threads. Along with the listing is a
brief explanation of the purpose of each task. The goal is to help the
user complete the analysis without requiring that every thread be read.
The Analysis Guides in this release are:
ACIS Data Preparation
http://cxc.harvard.edu/ciao/guides/acis_data.html
HRC Imaging
http://cxc.harvard.edu/ciao/guides/hrc.html
Extended Sources
http://cxc.harvard.edu/ciao/guides/esa.html
2. "Why?" Topics
http://cxc.harvard.edu/ciao/why/
The "Why?" topics are meant as a second layer to the threads; they
provide supplemental information for the user that is interested in
"digging deeper". Some of the topics highlight common pitfalls and
subtleties in the CIAO software, others describe aspects of the Chandra
Observatory and data obtained with it. The documents also provide
information on why certain science decisions are made, enabling the user
to tailor the analysis to a particular dataset.
Currently, these topics are only accessible from the index but in the
future they will be linked from within the threads.
The Why? Topics in this release are:
The Aspect Solution & pcad_asol1.fits Files
http://cxc.harvard.edu/ciao/why/asol.html
Choosing an Energy Filter
http://cxc.harvard.edu/ciao/why/filter_energy.html
Dither
http://cxc.harvard.edu/ciao/why/dither.html
Both the Analysis Guides and the Why? Topics will be greatly expanded in
the future. Please email the Help Desk if you have suggestions for
topics that you would like to see discussed here.
3. Threads
http://cxc.harvard.edu/ciao/threads/
- One new thread has been added:
Title: Using the Output of Detect Tools
URL: http://cxc.harvard.edu/ciao/threads/detect_output/
History: original version
All three Detect programs have a common ouput format, the _src file.
This thread shows how the source list can be displayed, edited, and
used in CIAO data analysis (e.g. creating spectra, removing unwanted
point sources).
- Five threads have been updated:
Title: Remove the ACIS Readout Streak
URL: http://cxc.harvard.edu/ciao/threads/acisreadcorr/
History: added caveat on using subarrays
Title: Using celldetect
URL: http://cxc.harvard.edu/ciao/threads/celldetect/
History: rewrote thread to use event list instead of image;
remade tarfile with newer data
Title: Using vtpdetect
URL: http://cxc.harvard.edu/ciao/threads/vtpdetect/
History: rewrote thread to use event list instead of image;
remade tarfile with newer data
Title: Using wavdetect
URL: http://cxc.harvard.edu/ciao/threads/wavdetect/
History: rewrote parts of thread; remade tarfile with
newer data
Title: Obtain and Fit a Radial Profile
URL: http://cxc.harvard.edu/ciao/threads/radial_profile/
History: added section on Removing Contaminating Point
Sources; split Plotting and Fitting into separate
section
4. Re-design and Improvements to the
- AHELP Pages
http://cxc.harvard.edu/ciao/ahelp/
- FAQ Pages
http://cxc.harvard.edu/ciao/faq/
- Chandra Dictionary Pages
http://cxc.harvard.edu/ciao/dictionary/
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