Quantile analysis on faint X-ray sources of ChaMPlane survey

Details Quantile analysis on faint X-ray sources of ChaMPlane survey Quantile analysis on faint X-ray sources of ChaMPlane survey

Aug 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004head....8.2508h&link_type=abstract

American Astronomical Society, HEAD meeting #8, #25.08; Bulletin of the American Astronomical Society, Vol. 36, p.955

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Quantile analysis is a new spectral classification technique for X-ray sources with limited statistics and is superior to conventional approaches using X-ray colors and hardness ratio. We apply the quantile analysis technique to X-ray sources discovered by the Chandra Multiwavelength Plane (ChaMPlane) survey. This is a particularly efficient way to pick out source populations from their X-ray colors, including the hard sources expected for accretion-powered systems (see Grindlay et al). We investigate the X-ray spectral properties of X-ray sources in the Galactic plane, using the quantile color-color diagram (QCCD) based on median and quartile ratio. We use QCCDs to test various spectral models such as power-law, thermal Bremsstrahlung, black body emission on ChaMPlane fields to pick out hard sources (see Grindlay et al).

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