2006ApJ...637...53D

Query : 2006ApJ...637...53D

2006ApJ...637...53D - Astrophys. J., 637, 53-57 (2006/January-3)

Probing the Dust-to-Gas ratio of z > 0 galaxies through gravitational lenses.

DAI X., KOCHANEK C.S., CHARTAS G. and MATHUR S.

Abstract (from CDS):

We report the detection of differential gas column densities in three gravitational lenses, MG 0414+0534, HE 1104-1805, and PKS 1830-211. Combined with the previous differential column density and extinction measurements in B1600+434 and Q2237+0305, 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±0.5)x10–22 mag.cm2/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 1.7x10–22 mag.cm2/atoms, and the estimated intrinsic dispersion is also consistent with the 30% observed in the Galaxy.

Abstract Copyright: ∼

Journal keyword(s): ISM: Dust, Extinction - Galaxies: High-Redshift

Simbad objects: 18

goto Full paper

goto View the references in ADS

Number of rows : 18
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 NAME SMC G 00 52 38.0 -72 48 01   2.79 2.2     ~ 12317 1
2 6C 021803+354230 BLL 02 21 05.4920852208 +35 56 13.848581904   20.0 20.0 19.60   ~ 603 3
3 [HTL92] C LeI 04 14 37.64 +05 34 42.7           ~ 43 0
4 [HTL92] G G 04 14 37.70 +05 34 43.0     24.4     ~ 37 1
5 [HTL92] B LeI 04 14 37.73 +05 34 44.3     25.5     ~ 48 0
6 4C 05.19 QSO 04 14 37.76734974 +05 34 42.3295956   24.100 23.800 21.270   ~ 371 2
7 [HTL92] A LeI 04 14 37.77 +05 34 42.6     24.7     ~ 10 0
8 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 19090 0
9 LBQS 1009-0252 QSO 10 12 15.89 -03 07 03.1   18.82 18.71     ~ 75 1
10 [WKK93] G G 11 06 33.3 -18 21 23           ~ 35 1
11 QSO B1104-181 QSO 11 06 33.3845199936 -18 21 23.829049296   15.8 15.9 15.7   ~ 338 1
12 QSO B1600+4344 QSO 16 01 40.4818 +43 16 47.394   22.12 21.92     ~ 188 1
13 QSO B1830-211B LeQ 18 33 39.822 -21 03 40.47           ~ 21 1
14 QSO B1830-211A LeQ 18 33 39.871 -21 03 39.78           ~ 20 1
15 QSO B1830-211 Bla 18 33 39.9399138048 -21 03 39.368838780     18.70 21   ~ 724 1
16 QSO B2016+112 QSO 20 19 18.2 +11 27 14     22.5     ~ 195 1
17 QSO J2240+0321 QSO 22 40 30.234 +03 21 30.63           ~ 705 1
18 Z 378-15 AGN 22 40 30.23447 +03 21 30.6290           ~ 636 0

To bookmark this query, right click on this link: simbad:objects in 2006ApJ...637...53D and select 'bookmark this link' or equivalent in the popup menu