Table 1
List of the 20 new X-ray sources discovered during our survey of the Norma arm with Chandra, the companion stars of which we identified through near-IR spectroscopy.
| No. | IAU name | Quantile group | RA (J2000) | Dec (J2000) | NH i + H2(ISM) | NH(X-ray) | Γ | kT | F 0.5−10 | R |
| CXOU J | (hms) | (dms) | (× 1022cm-2) | (× 1022 cm-2) | (keV) | (× 10-13 cgs) | ||||
|
|
||||||||||
| 38 | 163329.5-473332 | D | 16 33 29.58 | −47 33 32.8 | 5.9 |
|
|
– | 3.05 | 0.994 |
| 78 | 163355.1-473804 | D | 16 33 55.11 | −47 38 04.9 | 7.0 |
|
0.5 ± 0.4 | – | 10.0 | 0.994 |
| 158 | 163443.0-472603 | C/D | 16 34 43.05 | −47 26 03.3 | 7.0 |
|
|
– | 0.71 | 0.990 |
| 239 | 163515.1-472304 | D | 16 35 15.19 | −47 23 04.0 | 8.9 |
|
|
– | 0.78 | 0.989 |
| 396 | 163553.5-470037 | D/E | 16 35 53.52 | −47 00 37.1 | 4.9 |
|
|
– | 1.26 | 0.898 |
| 437 | 163607.0-471434 | C | 16 36 07.03 | −47 14 34.8 | 8.4 |
|
|
– | 0.58 | 0.984 |
| 694 | 163734.1-464630 | A/B | 16 37 34.11 | −46 46 30.1 | 7.7 |
|
|
– | 0.50 | 0.983 |
| 750 | 163750.8-465545 | B | 16 37 50.82 | −46 55 45.3 | 9.4 |
|
1.2 ± 0.1 | – | 10.3 | 0.989 |
| 881 | 163832.2-470339 | C | 16 38 32.20 | −47 03 39.2 | 8.5 |
|
0.8 ± 0.4 | – | 2.19 | 0.883 |
| 1059 | 163925.7-465303 | A | 16 39 25.73 | −46 53 03.6 | 8.0 |
|
– | 0.5 ± 0.2 | 0.88 | 0.989 |
| 1128 | 163944.3-465614 | C | 16 39 44.39 | −46 56 14.9 | 6.4 |
|
2.2 ± 0.6 | – | 3.82 | 0.994 |
| 1168 | 163955.2-463145 | B | 16 39 55.25 | −46 31 45.8 | 6.2 |
|
1.8 ± 0.4 | – | 1.19 | 0.986 |
| 1203 | 164002.4-463200 | B | 16 40 02.43 | −46 32 00.6 | 6.2 | 0.7 ± 0.3 |
|
– | 1.51 | 0.981 |
| 1278 | 164029.4-462328 | D/E | 16 40 28.97 | −46 23 27.6 | 7.8 |
|
– |
|
1.18 | 0.986 |
| 1279 | 164029.5-462329 | D/E | 16 40 29.68 | −46 23 29.2 | 7.8 |
|
– |
|
2.89 | 0.986 |
| 1326 | 164045.5-464607 | D | 16 40 45.54 | −46 46 07.1 | 7.3 |
|
|
– | 0.79 | 0.991 |
| 1358 | 164105.5-465108 | A/B | 16 41 05.54 | −46 51 08.4 | 6.0 |
|
|
– | 1.28 | 0.993 |
| 1374 | 164122.8-464529 | A/B | 16 41 22.87 | −46 45 29.4 | 6.8 | 0.4 ± 0.3 |
|
– | 2.45 | 0.991 |
| 1379 | 164130.8-463048 | A/B | 16 41 30.88 | −46 30 48.8 | 7.0 |
|
|
– | 4.10 | 0.982 |
| 1408 | 164204.5-464341 | D/E | 16 42 04.59 | −46 43 41.3 | 6.3 |
|
|
– | 1.71 | 0.983 |
Notes. Column 1: source number in our catalogue. Column 2: Chandra name. Column 3: quantile group. Columns 4 and 5: Chandra equatorial coordinates. Column 6: total interstellar column density of the source along its line of sight. Column 7: X-ray column density of the source NH. Column 8: Power-law photon index Γ when a power-law model better describes the Chandra spectrum. Column 9: Plasma temperature kT in keV when a thermal plasma model better describes the Chandra spectrum. Column 10: 0.5−10 keV unabsorbed flux F0.5 − 10. Column 11: Reliability R of the near-infrared counterpart.
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