Quasar-galaxy associations by gravitational lensing revisited

Details Quasar-galaxy associations by gravitational lensing revisited Quasar-galaxy associations by gravitational lensing revisited

Oct 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988a%26a...204l...8l&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 204, no. 1-2, Oct. 1988, p. L8-L10.

Astronomy and Astrophysics

Astrophysics

14

Galaxies, Gravitational Lenses, Quasars, Astronomical Models, Red Shift

Scientific paper

Claims that the quasar density near foreground galaxies is larger than the average have led to studies on whether this effect can be caused by gravitational microlensing in the halo of these foreground galaxies; however, all these studies have concluded that no observable overdensity can be produced this way. The authors reconsider this problem by dropping one of the essential assumptions implicitly present in all these studies, namely that the sky-averaged source counts are unaffected by lensing (negligible amplification bias). They conclude that even with this modification the associations of quasars with galaxies cannot be explained by lensing.

Affiliated with

Also associated with

No associations

Rating

Quasar-galaxy associations by gravitational lensing revisited 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 Quasar-galaxy associations by gravitational lensing revisited, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Quasar-galaxy associations by gravitational lensing revisited will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1597295