J1248+2848: Both Ca II K & H lines are detected for this system. The Ca II H line is, however, blended with a sky feature, thus the value given in Table 2 for the EW Ca II H line is somewhat tentative. As in the case of J1346+0644, Na I D lines are badly blended with strong telluric absorptions. This is why we do not give an EW upper limit for Na I D. The component at υ ~ −250 km s⁻¹ is included into the fit and the measurement of W(Mg Iλ2852). The width of the metal line absorption profile is around 575 km s⁻¹.