SIMBAD references

1998A&A...330...67B - Astronomy and Astrophysics, volume 330, 67-71 (1998/2-1)

X-ray and optical study of the giant radio quasar 4C +74.26.

BRINKMANN W., OTANI C., WAGNER S.J. and SIEBERT J.

Abstract (from CDS):

We present the optical and X-ray study of the radio-loud quasar C. 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 {GAMMA}=2.03 ±0.09. 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 C is seen under a relative large angle (∼45°) 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 ∼19 mag galaxy could be found in the optical images.

Abstract Copyright:

Journal keyword(s): galaxies: active - quasars: general - quasars: individual: 4C+74.26 - X-rays: general

Simbad objects: 4

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