The Chandra Source Catalog: Source Properties and Data Products

Details The Chandra Source Catalog: Source Properties and Data Products The Chandra Source Catalog: Source Properties and Data Products

Jan 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aas...21347203r&link_type=abstract

American Astronomical Society, AAS Meeting #213, #472.03; Bulletin of the American Astronomical Society, Vol. 41, p.424

Astronomy and Astrophysics

Astronomy

Scientific paper

The Chandra Source Catalog (CSC) is breaking new ground in several areas. In particular, there are two aspects of interest to the users: its evolution and its contents.
The CSC will be a living catalog that becomes richer, bigger, and better in time while still remembering its state at each point in time. This means that users will be able to take full advantage of new additions to the catalog, but still able to back-track and go back to what was extracted in the past.
The CSC also sheds the limitations of flat-table catalogs. Its sources will be characterized by a large number of properties, as usual, but each source will also be associated with its own specific data products, allowing users to perform mini custom analysis on the sources. Source properties fall in the spatial (position, extent), photometric
(fluxes, count rates), spectral (hardness ratios, standard spectral fits), and temporal (variability probabilities) domains, and are all accompanied by error estimates. Data products cover the same coordinate space and include events lists, images, spectra, and light curves.
In addition, the catalog contains data products covering complete observations: event lists, background images, exposure maps, etc.
This work is supported by NASA contract NAS8-03060 (CXC).

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