Free Access
Table 1
The sample.
| Target | zem | Spectrograph | Δt | Date | ||||
| namea | h | |||||||
|
|
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| HE 0001−2340 | 2.280 | UVES | 12.0 | 06–08/2001 | ||||
| UVES | 15.0 | 09/2009 | ||||||
|
|
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| PKS 0237−23 | 2.225 | UVES | 25.3 | 2001–2002 | ||||
| UVES | 18.8 | 2011−2013 | ||||||
|
|
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| Tol 0453−423 | 2.261 | UVES | 16.2 | 01/2002 | ||||
| UVES | 16.8 | 03−11/2011 | ||||||
|
|
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| TXS 1331+170 | 2.089 | UVES | 8.5 | 03–04/2011 | ||||
| HIRES(>4220 Å) | 10.0 | 04–06/1994 | ||||||
|
|
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| QSO J1439+1117 | 2.583 | UVES | 8.2 | 03/2007 | ||||
|
|
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| PKS 1448−232 | 2.208 | UVES | 13.5 | 06–07/2001 | ||||
|
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| FBQS J2340−0053 | 2.085 | UVES | 7.5 | 10/2008 | ||||
| HIRES | 4.2 | 08/2006 | ||||||
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