Astronomy and Astrophysics – Astronomy
Scientific paper
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
Chartas George
Cresitello-Dittmar Mark
Cui Wei-Wei
Feigelson Eric D.
Ghosh Kajal K.
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