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Table A.4

Comparison with (revised) Danforth et al. (2016) absorber list.

QSO (COS name) zabs Comment

Danforth detections without Richter counterpart

3C57 0.077417 many line blends
3C57 0.089742 candidate metal lines are offset from Ly α
MR2251-178 0.010725 candidate metal lines are offset from Ly α
RXJ1230.8+0115 0.071728 no evidence for metal absorption

Richter candidate system without Danforth counterpart

RXJ0439.6-5311 0.057400 possible Si iii absorber present, but blend with intrinsic Ly β

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