EDP Sciences logo
Subscriber Authentication Point
Search
Menu
Home All issues Volume 581 (September 2015) A&A, 581 (2015) A109 Full HTML
Free Access

Table 3

Targets with absorption systems showing marginal or significant variability.

Target Date N Date N
cm-2 cm-2
AO 0235+164 Mg ii (blend) marginal variabilitya
0.85232 12-1997 (2.79 ± 0.46) × 1012 02-2007 (2.82 ± 0.38) × 1012
0.85237v 12-1997 (5.58 ± 0.85) × 1012 02-2007 (3.25 ± 0.57) × 1012
Mg ii no variability
0.85562 12-1997 (7.27 ± 0.36) × 1011 02-2007 (7.84 ± 0.28) × 1011
PKS 1229−02 Na i significant variabilityb
–0.00013V 02-2002 (1.98 ± 0.41) × 1011 04-2011 (4.6 ± 1.5) × 1010
–0.00010 02-2002 (1.81 ± 0.20) × 1011 04-2011 (1.67 ± 0.16) × 1011
Mg ii no variability
0.76836 02-2002 (7.15 ± 0.24) × 1011 04-2011 (7.57 ± 0.58) × 1011
Mg ii marginal variabilityb
0.83032v 02-2002 (3.42 ± 0.07) × 1012 04-2011 (2.87 ± 0.13) × 1012
FBQS J2340−0053 C i (blend) marginal variabilityd
2.05470 08-2006 (1.33 ± 0.16) × 1013 10-2008 (1.25 ± 0.07) × 1013
2.05473v 08-2006 (3.13 ± 0.49) × 1013 10-2008 (1.52 ± 0.23) × 1013
H2, J = 3 marginal variabilityd
2.05499 08-2006 (1.66 ± 0.10) × 1015 10-2008 (1.43 ± 0.09) × 1015
2.05513v 08-2006 (6.19 ± 0.50) × 1014 10-2008 (4.39 ± 0.31) × 1014

Notes.

(a, b, c, d)

See Figs. 2–5 (left panel), 3 (right panel).

(V)

Significant variability: significance level >3.5σ and ΔN/⟨N ⟩ > 25%.

(v)

Marginal variability: significance level either in the range 2.0–3.5σ or >3.5σ but ΔN/⟨N ⟩ < 25%.

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.