Table 1
General characteristics of the objects selected for our study.
| Object | α 2000 | δ 2000 | z | Distance (Mpc)* | NH (cm-2) |
|
|
|||||
| ESO 359-G19 | 04h05m01.7s | −37°11′15″0 | 0.056(a) | 224 | 1.02 × 1020 |
| HE 1143-1810 | 11h45m40.5s | −18°27′16″0 | 0.033(b) | 132 | 3.40 × 1020 |
| CTS A08.12 | 21h32m02.2s | −33°42′54″0 | 0.029(c) | 116 | 4.07 × 1020 |
| Mrk 110 | 09h25m12.9s | +52°17′11″0 | 0.035(d) | 140 | 1.42 × 1020 |
Notes.
From the object redshifts using the expression D = (cz/H0) and adopting H0 = 75 km s-1 Mpc-1. Estimated hydrogen column densities from Dickey & Lockman (1990).
References. (a) Reimers et al. (1996), (b) da Costa et al. (1998), (c) Rodríguez-Ardila et al. (2000), (d) Boroson & Green (1992).
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.