Table 3
Summary of all the Wr ≥ 1 Å Mg ii absorbers at 0.5 < z < 1 and 1.1 < z < 1.5 with 21-cm absorption measurements considered here.
| Sample | Number | 21-cm absorption | Selection | Reference |
| of systems | detections | criterion | ||
|
|
||||
| A | 4 | 3 | Wr ≥ 1 Å + Zn ii/Cr ii/Mn ii | This paper |
| B | 13 | 1 | Wr ≥ 1 Å | ” |
| C | 32† | 8 | ” | Gupta et al. (2009) |
| D | 23 | 1 | ” | Kanekar et al. (2009) |
| E | 13 | 2 | ” | Lane (2000) |
Notes. The samples S1 and S2 discussed in the text are comprised of the subsamples B − E and A − E, respectively.
Measurements of 33 Wr ≥ 1 Å Mg ii systems are available from G09. However, the optical depth value for the system towards J1145+0455 is taken from the more sensitive spectrum of Kanekar et al. (2009).
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