Table 1
Log of the spectroscopic observations presented in this paper (see text for details).
| (1) | (2) | (3) | (4) | (5) | (6) | (7) | (8) | (9) | (10) | (11) |
| Object | RA X-ray | Dec X-ray | Error radius | RA Opt | Dec Opt | Telescope+instrument | λ range | Disp. | UT date & time | Exposure |
| (J2000) | (J2000) | (arcsec) | (arcsec) | (arcsec) | (Å) | (Å/pix) | at mid-exposure | time (s) | ||
|
|
||||||||||
| PBC J0041.6+2534+* | 00 41 27.98 | +25 29 57.78 | 4.59 | 00 41 28.01 | +25 29 57.6 | SPM 2.1 m+B&C Spc. | 3450–7650 | 4.0 | 28 Jan. 2009, 03:18 | 2 × 1800 |
| PBC J0100.6−4752 | 01 00 34.54 | −47 52 05.71 | 3.75 | 01 00 34.90 | −47 52 03.3 | AAT+6dF | 3900–7600 | 1.6 | 30 Oct. 2010, 14:34 | 1200 + 600 |
| PBC J0122.3+5004 | 01 22 34.35 | +50 03 12.24 | 4.59 | 01 22 34.42 | +50 03 18.0 | SPM 2.1 m+B&C Spc. | 3450–7650 | 4.0 | 29 Jan. 2009, 03:48 | 2 × 1800 |
| PBC J0140.4−5320 | 01 40 26.88 | −53 19 37.28 | 3.62 | 01 40 26.78 | −53 19 39.2 | Radcliffe+Gr. Spec. | 3850–7200 | 2.3 | 06 Aug. 2009, 02:46 | 2 × 900 |
| PBC J0248.9+2627 | 02 48 59.17 | +26 30 38.27 | 4.36 | 02 48 59.37 | +26 30 39.1 | SPM 2.1 m+B&C Spc. | 3450–7650 | 4.0 | 02 Dec. 2008, 07:28 | 2 × 1800 |
| PBC J0353.5+3713 | 03 53 42.28 | +37 14 06.06 | 3.90 | 03 53 42.46 | +37 14 07.7 | SPM 2.1 m+B&C Spc. | 3450–7650 | 4.0 | 28 Jan. 2009, 05:33 | 2 × 1800 |
| PBC J0356.9−4040 | 03 56 56.40 | −40 41 45.50 | 3.65 | 03 56 56.55 | −40 41 45.3 | AAT+6dF | 3900–7600 | 1.6 | 19 Dec. 2003, 10:23 | 1200 + 600 |
| PBC J0503.0+2300 | 05 02 58.10 | +22 59 50.41 | 3.53 | 05 02 58.22 | +22 59 52.0 | SPM 2.1 m+B&C Spc. | 3450−7650 | 4.0 | 28 Jan. 2009, 07:58 | 2 × 1800 |
| PBC J0543.6−2738 | 05 43 33.07 | −27 39 07.61 | 3.8 | 05 43 32.92 | −27 39 05.3 | SPM 2.1 m+B&C Spc. | 3450–7650 | 4.0 | 02 Dec. 2008, 09:12 | 2 × 1800 |
| PBC J0544.3+5905 | 05 44 22.29 | +59 07 34.51 | 3.68 | 05 44 22.57 | +59 07 36.1 | SPM 2.1 m+B&C Spc. | 3450–7650 | 4.0 | 03 Dec. 2008, 08:47 | 2 × 1800 |
| PBC J0623.8−3212 | 06 23 46.37 | −32 12 59.75 | 4.88 | 06 23 46.41 | −32 12 59.9 | AAT+6dF | 3900–7600 | 1.6 | 07 Jan. 2002, 12:30 | 1200 + 600 |
| PBC J0641.3+3251 | 06 41 18.00 | +32 49 32.28 | 3.71 | 06 41 18.06 | +32 49 31.3 | Cassini+BFOSC | 3500–8000 | 4.0 | 09 Dec. 2009, 20:43 | 2 × 1800 |
| PBC J0759.9+2324 | 07 59 53.62 | +23 23 23.29 | 3.79 | 07 59 53.47 | +23 23 24.1 | SDSS+CCD Spc. | 3800–9200 | 1.0 | 09 Mar. 2003, 02:39 | 2220 |
| PBC J0814.4+0421 | 08 14 25.22 | +04 20 30.51 | 4.32 | 08 14 25.29 | +04 20 32.4 | SPM 2.1 m+B&C Spc. | 3450–7650 | 4.0 | 28 Jan. 2009, 09:40 | 2 × 1800 |
| PBC J0826.3−7033 | 08 26 23.19 | −70 31 42.18 | 3.75 | 08 26 23.50 | −70 31 43.1 | NTT+EFOSC2 | 3650–9300 | 5.5 | 30 May 2009, 23:55 | 900 |
| PBC J0919.9+3712* | 09 19 57.90 | +37 11 25.61 | 3.0 | 09 19 58.02 | +37 11 27.7 | SDSS+CCD Spc. | 3800–9200 | 1.0 | 29 Nov. 2003, 10:11 | 2370 |
| PBC J0954.8+3724 | 09 54 39.51 | +37 24 30.84 | 4.64 | 09 54 39.43 | +37 24 30.8 | SDSS+CCD Spc. | 3800–9200 | 1.0 | 25 Dec. 2003, 07:23 | 2250 |
| PBC J1246.5+5432* | 12 46 40.01 | +54 31 59.77 | 5.08 | 12 46 39.82 | +54 32 03.0 | SPM 2.1 m+B&C Spc. | 3450–7650 | 4.0 | 28 Jan. 2009, 11:49 | 2 × 1800 |
| PBC J1335.8+0301* | 13 35 48.44 | +02 59 54.41 | 4.28 | 13 35 48.25 | +02 59 55.6 | SDSS+CCD Spc. | 3800–9200 | 1.0 | 23 Apr. 2001, 06:07 | 7043 |
| PBC J1344.2+1934 | 13 44 15.69 | +19 33 59.61 | 6.41 | 13 44 15.80 | +19 33 57.9 | SPM 2.1 m+B&C Spc. | 3450–7650 | 4.0 | 30 Jan. 2009, 04:45 | 2 × 1800 |
| PBC J1345.4+4141 | 13 45 19.33 | +41 42 45.15 | 4.28 | 13 45 19.13 | +41 42 44.4 | SDSS+CCD Spc. | 3800–9200 | 1.0 | 15 Apr. 2004, 08:41 | 2400 |
| PBC J1439.0+1413 | 14 39 11.87 | +14 15 18.46 | 3.91 | 14 39 11.86 | +14 15 21.5 | SPM 2.1 m+B&C Spc. | 3450–7650 | 4.0 | 01 Feb. 2009, 12:52 | 2 × 1800 |
| PBC J1453.0+2553 | 14 53 07.66 | +25 54 33.99 | 3.55 | 14 53 07.91 | +25 54 33.2 | SPM 2.1 m+B&C Spc. | 3450–7650 | 4.0 | 31 Jan. 2009, 11:48 | 1800 + 1200 |
| PBC J1506.6+0349 | 15 06 43.95 | +03 51 45.43 | 3.68 | 15 06 44.12 | +03 51 44.4 | SPM 2.1 m+B&C Spc. | 3450–7650 | 4.0 | 01 Feb. 2009, 10:48 | 2 × 1800 |
| PBC J1546.5+6931 | 15 46 23.85 | +69 29 10.74 | 4.55 | 15 46 24.24 | +69 29 10.2 | Cassini+BFOSC | 3500–8000 | 4.0 | 18 May 2009, 22:06 | 2 × 1800 |
| PBC J1620.3+8101 | 16 19 19.94 | +81 02 46.30 | 3.74 | 16 19 19.31 | +81 02 47.3 | Cassini+BFOSC | 3500–8000 | 4.0 | 15 May 2009, 23:34 | 1800 |
| PBC J2148.2−3455 | 21 48 19.21 | −34 57 02.77 | 5.24 | 21 48 19.48 | −34 57 04.7 | AAT+6dF | 3900–7600 | 1.6 | 07 Jul. 2003, 16:40 | 1200 + 600 |
| PBC J2333.9−2343 | 23 33 55.25 | −23 43 41.76 | 3.54 | 23 33 55.20 | −23 43 40.6 | SPM 2.1 m+B&C Spc. | 3450–7650 | 4.0 | 18 Sep. 2009, 07:48 | 2 × 1800 |
| PBC J2341.9+3036* | 23 41 55.25 | +30 34 53.97 | 4.45 | 23 41 55.45 | +30 34 54.2 | SPM 2.1 m+B&C Spc. | 3450–7650 | 4.0 | 02 Dec. 2008, 03:10 | 2 × 1800 |
Notes. Optical source coordinates are extracted from the 2MASS catalogue
and have an accuracy better than 0
1, and
soft X-ray coordinates are extracted from XRT and XMM-Newton
observations. If not indicated otherwise, source optical coordinates were
extracted from the 2MASS catalogue and have an accuracy better than
01.
The reported X-ray coordinates are obtained from XMM/EPIC data. Our positions totally agree with those in the 2XMM catalogue (Watson et al. 2009).
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