Dust obscuration of DLA galaxies

Details Dust obscuration of DLA galaxies Dust obscuration of DLA galaxies

2005-10-07

arxiv.org/abs/astro-ph/0510216v1

Astronomy and Astrophysics

Astrophysics

To appear in "Probing Galaxies through Quasar Absorption Lines", Proc. IAU Coll.No.199, 2005, eds. P.R.Williams, C.Shu, and B.

Scientific paper

10.1017/S1743921305002772

We show that the extinction of quasar absorbers increases exponentially with the logarithmic column density of any volatile metal (e.g. zinc), with a charateristic turning point above which the quasars are severely dimmed. We derive the relation between extinction, HI column density, metallicity and fraction of iron in dust in Damped Lyman alpha (DLA) systems. We use this relation to estimate the effect of dust obscuration on the statistical distributions of N(HI) and metallicity measured in magnitude-limited surveys of DLAs. In the redshift range where the measurements of zinc column densities have sufficient statistics (1.8

Affiliated with

Also associated with

No associations

Rating

Dust obscuration of DLA galaxies 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 Dust obscuration of DLA galaxies, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dust obscuration of DLA galaxies will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-560770