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X-ray and optical study of the giant radio quasar 4C +74.26
W. Brinkmann 1,
C. Otani 2,
* 3 and
J. Siebert 1
Received 26 June 1997 / Accepted 15 September 1997
We present the optical and X-ray study of the radio-loud quasar 4C +74.26. The ASCA spectrum is rather complex with indications of a reflection component, a neutral iron line and a warm absorber. The underlying power law has a photon index of . The soft X-ray flux in 1996 is nearly twice as high as that found in a ROSAT observation in 1993 without apparent spectral changes.
The X-ray data support the picture deduced from previous radio observations that 4C +74.26 is seen under a relative large angle () with respect to its jet axis. However, the rather unusual X-ray spectral properties might as well be a signature of the quasar's young evolutionary status.
No interaction between the quasar and the nearby mag galaxy could be found in the optical images.
Key words: galaxies: active quasars: general quasars: individual 4C+74.26 X-rays: general
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© European Southern Observatory (ESO) 1998
Online publication: January 8, 1998