HEAD 2000, November 2000
Session 5. Blazars
Display, Monday, November 6, 2000, 8:00am-6:00pm, Bora Bora Ballroom

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[5.07] The high resolution Chandra X-ray spectrum of 3C273

A. Fruscione (Harvard-Smithsonian Center for Astrophysics), 3C273 X-ray Team

The bright quasar 3C273 was observed by Chandra in January 2000 for 120 ksec as a calibration target. It was observed with all detector-plus-grating combinations (ACIS+HETG, ACIS+LETG, and HRC+LETG) yielding an X-ray spectrum across the entire 0.1-10 keV band with unprecedented spectral resolution. At about 10 arcsec from the nucleus, an X-ray jet is also clearly visible and resolved in the Oth order images. While the jet is much fainter than the nuclear source, the Chandra spatial resolution allows, for the first time, spectral analysis of both components separately. We will present detailed spectral analysis with particular emphasis on possible absorption features and comparison with simultaneous BeppoSAX data.

AF was supported by the Chandra X-ray Center~ NASA contract NAS8-39073.

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