Astronomy and Astrophysics – Astrophysics
Scientific paper
1997-12-12
Astronomy and Astrophysics
Astrophysics
6 pages, 4 postscript figures, in press IAU183, Kyoto 18-22 August 1997, Cosmological Parameters and Evolution of the Universe
Scientific paper
Analysis of ROSAT observations demonstrate that X-ray sources are associated with bright Seyfert galaxies up to distances of about 40 arc min. These X-ray sources are predominantly identified with blue stellar objects (BSO's) some of which are already catalogued as quasars. The X-ray sources tend to pair and align across the nucleus of the active Seyfert. Enough redshifts are now available to indicate similarities of the redshifts in the quasar pairs and to enable computation of ejection velocities of about 0.1c. BL Lac objects are a conspicuous kind of strong X-ray source which are associated with Seyferts a high level of probability.The BL Lac's appear to be a transition form between quasars and compact companion galaxies. Both quasars and companion galaxies tend to align along the minor axis of the ejecting galaxy and to extend to the same maximium separation of ~400 kpc. These observations require high redshift quasars to evolve into low redshift companion galaxies. The initially high intrinsic redshift of the quasars must then arise from the low particle masses in their recently created matter.
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