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Table A.1

Log of the FORS2 observations obtained with grism 1200B in spectropolarimetric mode during the run dedicated to Of?p stars (listed in boldface fonts).

DATE UT RA Dec STAR V Sp. Exp S/N Bz Nz

yyyy-dd-mm hh:mm J2000 −1 G G
2017-11-21 00:00 19:53:18.7 −03:06:52 HD 188041 5.6 F0 Vp 80 4090 772 ± 18 4 ± 9
2017-11-21 23:54 80 2765 779 ± 21 − 21 ± 13
2017-11-21 08:50 10:55:01.0 −42:15:04 HD 94660 6.1 Ap 60 3010 − 2345 ± 25 − 15 ± 10
2017-11-22 01:28 00:49:47.6 −73:17:53 AzV 55 13.4 B5 6800 1480 − 130 ± 60 5 ± 60
2017-11-24 02:25 8880 1610 − 75 ± 60 − 155 ± 60
2017-11-21 00:32 00:49:58.7 −73:19:28 SMC 159-2 15.1 O8f?p 7200 580 625 ± 405 − 275 ± 425
2017-11-21 04:00 6400 540 580 ± 505 390 ± 485
2017-11-22 01:28 6800 605 1050 ± 430 865 ± 425
2017-11-24 02:25 8880 590 615 ± 420 1215 ± 440
2017-11-22 01:28 00:49:59.7 −73:18:42 2MASS J00495968-7 318 420 15.2 HPMS 6800 675 − 185 ± 145 − 35 ± 145
2017-11-24 02:25 8880 740 − 325 ± 170 − 95 ± 160
2017-11-22 01:28 00:50:04.8 −73:21:03 2dFS 5037 15.0 B0.5 (V) 6800 635 330 ± 260 − 540 ± 265
2017-11-22 01:28 00:50:06.3 −73:16:32 AzV 66 13.5 B0.5 V 6800 1380 − 75 ± 100 55 ± 100
2017-11-24 02:25 8880 1495 − 215 ± 95 − 285 ± 100
2017-11-22 01:28 00:50:17.5 −73:17:18 2dFS 5038 15.1 B0.5 (V) 6800 715 220 ± 190 − 55 v195
2017-11-24 04:51 00:58:53.3 −72:08:35 SkKM 179 12.9 G8Iab-Ib 8800 850 − 130 ± 50 − 15 ± 50
2017-11-24 04:51 00:59:00.9 −72:07:18 NGC 346 ELS 27 15.0 B0.5 V 8800 550 − 1005 ± 445 − 130 ± 460
2017-11-24 04:51 00:59:04.2 −72:04:49 NGC 346 ELS 68 15.9 B0 V(Be-Fe) 8800 480 − 675 ± 830 200 ± 920
2017-11-24 04:51 00:59:05.6 −72:08:02 NGC 346 ELS 19 14.9 A0 II 8800 525 − 615 ± 315 685 ± 385
2017-11-24 04:51 00:59:10.0 −72:05:49 AzV 220 14.5 O6.5f?p 8800 845 − 225 ± 305 − 155 ± 290
2017-11-24 04:51 00:59:18.3 −72:04:21 NGC 346 1080 16.1 B0.5 III 8800 535 475 ± 395 575 ± 425
2017-11-24 04:51 00:59:20.8 −72:02:59 NGC 346 ELS 103 16.2 B0.5 V 8800 430 − 320 ± 480 630 ± 490
2017-11-24 04:51 00:59:20.8 −72:03:38 NGC 346 ELS 100 16.1 B1.5 V 8800 430 − 50 ± 595 190 ± 575
2017-11-21 06:40 05:31:09.9 −67:11:19 [W60] D24 13.2 M1 I 9600 1065 5 ± 30 − 30 ± 30
2017-11-23 07:39 7200 1050 5 ± 30 15 ± 30
2017-11-21 06:40 05:31:54.5 −67:08:22 RM 1-546 13.4 M: E 9600 695 10 ± 50 70 ± 50
2017-11-23 07:39 7200 655 100 ± 45 − 85 ± 50
2017-11-21 06:40 05:31:54.8 −67:11:21 2MASS 05315473-6 711 194 14.7 9600 845 − 395 ± 200 225 ± 205
2017-11-23 07:39 7200 820 − 220 ± 200 350 ± 205
2017-11-21 06:40 05:32:22.9 −67:10:19 LMCe 136-1 14.6 O6.5f?p 9600 995 450 ± 235 − 10 ± 235
2017-11-23 07:39 7200 890 − 85 ± 275 − 230 ± 280
2017-11-21 06:40 05:32:32.9 −67:10:42 TYC 8891-3239-1 11.3 9600 3085 − 55 ± 15 − 45 ± 15
2017-11-21 06:40 05:32:39.2 −67:09:49 2MASS 05323916-6 709 487 14.4 9600 1095 375 ± 110 − 25 ± 110
2017-11-23 07:39 7200 1060 130 ± 105 135 ± 105
2017-11-21 06:40 05:32:47.4 −67:10:05 SK-67 180 12.6 B3: I 9600 2280 − 5 ± 50 30 ± 50
2017-11-23 07:39 7200 2260 − 125 ± 55 85 ± 50
2017-11-21 06:40 05:32:55.2 −67:10:20 2MASS 05325508-6 710 200 15.7 ?? 9600 580 − 180 ± 325 − 535 ± 325
2017-11-23 07:39 7200 575 320 ± 180 20 ± 280

Notes. The first two entries refer to known magnetic Ap stars. Columns 1 and 2 give the civilian date and UT time of the midpoint of the observation; Cols. 3–5 give the J2000 RA and Dec and the target name as identified through SIMBAD or other catalogues; Col. 6 gives the V magnitude; Col. 7 is the star’s spectral type; Cols. 8 and 9 give the total exposure time and the S/N per Å; and Cols. 10 and 11 give our field determination from the reduced Stokes V profiles, ⟨Bz ⟩, and from the null profiles, ⟨Nz⟩, respectively.

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