Narrow associated QSO absorbers: clustering, outflows and the line-of-sight proximity effect

Details Narrow associated QSO absorbers: clustering, outflows and the line-of-sight proximity effect Narrow associated QSO absorbers: clustering, outflows and the line-of-sight proximity effect

2008-02-27

arxiv.org/abs/0802.4100v1

Mon.Not.Roy.Astron.Soc.388:227-241,2008

Astronomy and Astrophysics

Astrophysics

16 pages, 20 figures, submitted to MNRAS

Scientific paper

10.1111/j.1365-2966.2008.13375.x

Using data from the Sloan Digital Sky Survey data release 3 (SDSS DR3) we investigate how narrow (<700km/s) CIV and MgII quasar absorption line systems are distributed around quasars. The CIV absorbers lie in the redshift range 1.6 < z < 4 and the MgII absorbers in the range 0.440% of CIV absorbers within 3,000km/s of the QSO are not a result of large-scale clustering but rather are directly associated with the quasar itself; (iii) that this intrinsic absorber population extends to outflow velocities of order 12,000km/s; (iv) that this outflow component is present in both radio-loud and radio-quiet quasars; and (v) that a small high-velocity outflow component is observed in the MgII population, but any further intrinsic absorber component is undetectable in our clustering analysis. We also find an indication that absorption systems within 3,000km/s are more abundant for radio-loud than for radio-quiet quasars. This suggests either that radio-loud objects live in more massive halos, or that their radio activity generates an additional low-velocity outflow, or both.

Affiliated with

Also associated with

No associations

Rating

Narrow associated QSO absorbers: clustering, outflows and the line-of-sight proximity effect 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 Narrow associated QSO absorbers: clustering, outflows and the line-of-sight proximity effect, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Narrow associated QSO absorbers: clustering, outflows and the line-of-sight proximity effect will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-471208