X-ray Morphology and Spectra of the Core and Jet of PKS 0637-752

Details X-ray Morphology and Spectra of the Core and Jet of PKS 0637-752 X-ray Morphology and Spectra of the Core and Jet of PKS 0637-752

Dec 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999aas...195.2002c&link_type=abstract

American Astronomical Society, 195th AAS Meeting, #20.02; Bulletin of the American Astronomical Society, Vol. 31, p.1403

Astronomy and Astrophysics

Astronomy

Scientific paper

The core-dominated radio-loud quasar PKS 0637-752 was observed with the Chandra X-ray Observatory during the orbital activation and checkout phase. The original purpose of these particular calibrations were to observe a point like source to establish an accurate focus position, and accurately determine the aim point. An early surprise in the mission was the detection of a remarkable X-ray jet. PKS 0637-752 was observed with a variety of detector configurations with a total exposure time of about 100ks. A careful spatial analysis of all the available X-ray observations reveals a jet that extends approximately 10'' to the west with a curvature very similar to the one seen in the radio observations. The X-ray intensity distribution is very similar to the radio morphology. Chandra's spatial resolving power of 0.4'' allows us to spatially resolve the luminosities and spectra of the core, jet and knot. The X-ray luminosity of the core appears to have not changed since it was last observed with ASCA at log {LX} 45.8 erg/s (2-10 keV). The jet has log {LX} 44.5 erg/s. We present fits from a variety of emission models to the observed spectra, and comment on the existence of emission lines recently reported in the ASCA observations of PKS0637-752. This work was supported by NASA grant NAS 8-38252

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