On the Relationship between Optical and X-Ray Luminosity of Quasars

Details On the Relationship between Optical and X-Ray Luminosity of Quasars On the Relationship between Optical and X-Ray Luminosity of Quasars

1994-12-08

arxiv.org/abs/astro-ph/9412029v1

Astron.Astrophys.299:19,1995

Astronomy and Astrophysics

Astrophysics

6 pages + 1 figure, uuencoded compressed postscript, A&A in press

Scientific paper

The issue of the X-ray to optical luminosity relationship ($L_o-L_x$) is addressed for both optically and X-ray selected quasar samples. We have applied a generalized regression algorithm for the case of samples involving censored data, with errors on both the dependent and the independent variable. Contrary to some previous results, we find that such relationship is consistent with being a linear one ($L_x\propto L_o$). We argue that previous reports of non-linear relationships (i.e. $L_x\propto L_o^e$ with $e < 1$) are due to the neglect of the influence of the photometric errors, the precise knowledge of which strongly influences the reliability of the results. Further progresses in the determination of the $L_o-L_x$ relationship can be achieved with ROSAT observations of the new generation of large bright quasar surveys.

Affiliated with

Also associated with

No associations

Rating

On the Relationship between Optical and X-Ray Luminosity of Quasars does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with On the Relationship between Optical and X-Ray Luminosity of Quasars, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and On the Relationship between Optical and X-Ray Luminosity of Quasars will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-109467