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Table 2
ROSAT/PSPC X-ray flux (0.12−2.48 keV) of stars with exoplanets.
| Star name | Coordinates | S/N | log fX | Notes | |
| α, δ (J2000.0) | (erg s-1 cm-2) | ||||
|
|
|||||
| 18 Del | 20:58:25.9 | + 10:50:21 | 4.5 | −12.48 | |
| 1RXS 1609 | 16:09:30.3 | −21:04:58 | 3.5 | −12.52 | |
| 4 UMa | 08:40:12.8 | + 64:19:40 | 11.6 | −13.26 | K-M in field |
| 61 Vir | 13:18:24.3 | −18:18:40 | 5.7 | −13.06 | |
| α Ari | 02:07:10.4 | + 23:27:44 | 5.1 | −13.50 | |
| BD-10 3166 | 10:58:28.8 | −10:46:13 | 3.1 | <−12.52 | +dM5, uncertain d |
| γ Cep | 23:39:20.8 | + 77:37:56 | 8.1 | <−13.03 | dM4 in field |
| GJ 176 | 04:42:55.8 | + 18:57:29 | 3.2 | −12.62 | |
| GJ 832 | 21:33:34.0 | −49:00:32 | 7.3 | −12.69 | |
| GJ 3021 | 00:16:12.7 | −79:51:04 | 7.8 | <−11.62 | dM4 in field |
| HD 3651 | 00:39:21.8 | + 21:15:01 | 4.5 | −12.89 | |
| HD 10647 | 01:42:29.3 | −53:44:27 | N/A | −12.24 | |
| HD 38529 | 05:46:34.9 | + 01:10:05 | 5.3 | −12.37 | |
| HD 41004 A | 05:59:49.6 | −48:14:22 | 7.5 | <−12.02 | dM2 in field |
| HD 48265 | 06:40:01.7 | −48:32:31 | 6.0 | −12.43 | |
| HD 70573 | 08:22:50.0 | + 01:51:33 | 4.0 | −12.31 | uncertain d |
| HD 87883 | 10:08:43.1 | + 34:14:32 | N/A | −12.99 | |
| HD 89744 | 10:22:10.6 | + 41:13:46 | 7.6 | −13.17 | |
| HD 102365 | 11:46:31.1 | −40:30:01 | 4.8 | −13.20 | faint dM4 in field |
| HD 128311 | 14:36:00.6 | + 09:44:47 | 7.5 | −12.04 | |
| HD 142415 | 15:57:40.8 | −60:12:00 | 5.0 | −12.50 | |
| HD 147513 | 16:24:01.3 | −39:11:34 | 16.2 | −11.40 | |
| HD 150706 | 16:31:17.6 | + 79:47:23 | 12.0 | −12.13 | |
| HD 169830 | 18:27:49.5 | −29:49:00 | 16.8 | −12.94 | |
| HD 176051 | 18:57:01.5 | + 32:54:06 | 7.2 | <−12.27 | F9V in field |
| HIP 75458 | 15:24:55.8 | + 58:57:57 | 3.5 | −13.66 | |
| HIP 79431 | 16:12:41.8 | −18:52:31 | 3.6 | −13.50 | ROSAT/WGA detector |
| HR 810 | 02:42:33.5 | −50:48:01 | 7.0 | −11.67 | |
Notes. The star GJ 667C (M1V) was well detected with ROSAT/PSPC (S/N = 7.1), but its X-ray emission is attributed to its companions GJ 667A (K3V) and GJ 667B (K5V), at 43″.
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