Probing The Dust-To-Gas Ratio of z > 0 Galaxies Through Gravitational Lenses

Details Probing The Dust-To-Gas Ratio of z > 0 Galaxies Through Gravitational Lenses Probing The Dust-To-Gas Ratio of z > 0 Galaxies Through Gravitational Lenses

2005-07-17

arxiv.org/abs/astro-ph/0507392v2

Astrophys.J.637:53-57,2006

Astronomy and Astrophysics

Astrophysics

14 pages, 4 figures, Accepted by ApJ

Scientific paper

10.1086/498299

We report the detection of differential gas column densities in three gravitational lenses, MG0414+0534, HE1104-1805, and PKS1830-211. Combined with the previous differential column density measurements in B1600+434 and Q2237+0305 and the differential extinction measurements of these lenses, we probe the dust-to-gas ratio of a small sample of cosmologically distant normal galaxies. We obtain an average dust-to-gas ratio of E(B-V)/NH =(1.4\pm0.5) e-22 mag cm^2/atoms with an estimated intrinsic dispersion in the ratio of ~40%. This average dust-to-gas ratio is consistent with the average Galactic value of 1.7e-22 mag cm^2/atoms and the estimated intrinsic dispersion is also consistent with the 30% observed in the Galaxy.

Affiliated with

Also associated with

No associations

Rating

Probing The Dust-To-Gas Ratio of z > 0 Galaxies Through Gravitational Lenses 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 Probing The Dust-To-Gas Ratio of z > 0 Galaxies Through Gravitational Lenses, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Probing The Dust-To-Gas Ratio of z > 0 Galaxies Through Gravitational Lenses will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-187524