AAS 199th meeting, Washington, DC, January 2002
Session 145. Astronomical Instruments and Analytical Tools
Oral, Thursday, January 10, 2002, 10:00-11:30am, Georgetown West

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[145.08] XAssist: A Tool For Automated Analysis of Automated X-ray Data Analysis Data

A. Ptak (Johns Hopkins University)

XAssist (http://www.xassist.org) is a tool (available for download) for automatically downloading, reducing and performing preliminary analysis on Chandra, ASCA, ROSAT and (eventually) XMM-Newton data. The system is capable of reprocessing data, running source detection algorithms (a built-in routine is used fro ASCA and ROSAT data, CIAO's wavdetect is used for Chandra data), determining median background levels, filtering flares from background light curves, determining source extent (using a method that is statistically-correct in the Poisson regime), calculating the K-S statistic for variability, and extracting and fitting spectra (for sources with sufficient numbers of counts). A pipeline is currently being run on all available Chandra and ROSAT HRI observations that contain an RC3 galaxy in the field of view (to date, ~2000 ROSAT data sets and ~150 Chandra data sets have been analyzed) to demonstrate XAssist's capabilities. These catalogs are publicly available and a sample of the results will be presented.

This work is supported by the NASA AISR program with contract NAG5-8092.

If you would like more information about this abstract, please follow the link to http://www.xassist.org. This link was provided by the author. When you follow it, you will leave the Web site for this meeting; to return, you should use the Back comand on your browser.

The author(s) of this abstract have provided an email address for comments about the abstract: ptak@pha.jhu.edu

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