EROS II Galactic Spiral Arms fields
Description of the 29 fields monitored in the spiral arms program. This table gives the fields centres, the averaged number of measurements and the number of light curves analysed in F. Derue et al "Observation of Microlensing towards the Galactic Spiral Arms. EROS II 3 year survey", published in A&A, 373, 126 (2001), available in Abstract, PDF File, PS file. Field gn401 has not been studied yet.
| Field | RA (J2000) | DEC (J2000) | b (J2000) | l (J2000) | Number of measurements | Number of stars (in millions) |
|---|---|---|---|---|---|---|
| Scutum (beta Sct) | 92 | 2.06 | ||||
| bs300 | 18:43:22 | -07:40:53 | -1.75 | 25.20 | 100 | 0.34 |
| bs301 | 18:43:27 | -06:13:42 | -1.11 | 26.51 | 93 | 0.25 |
| bs302 | 18:46:16 | -07:22:45 | -2.25 | 26.80 | 90 | 0.33 |
| bs303 | 18:46:20 | -05:55:35 | -1.60 | 27.09 | 87 | 0.30 |
| bs304 | 18:49:21 | -06:45:51 | -2.70 | 26.71 | 90 | 0.47 |
| bs305 | 18:52:26 | -06:35:44 | -3.26 | 27.19 | 89 | 0.37 |
| Scutum (gamma Sct) | 94 | 1.79 | ||||
| gs200 | 18:28:03 | -14:51:06 | -1.64 | 17.72 | 98 | 0.34 |
| gs201 | 18:31:15 | -14:14:38 | -2.12 | 18.00 | 93 | 0.30 |
| gs202 | 18:31:33 | -12:48:53 | -1.52 | 19.30 | 91 | 0.37 |
| gs203 | 18:34:22 | -14:31:39 | -2.92 | 18.09 | 94 | 0.34 |
| gs204 | 18:34:28 | -13:04:31 | -2.28 | 19.40 | 94 | 0.44 |
| Norma (gamma Nor) | 180 | 3.01 | ||||
| gn400 | 16:09:45 | -53:07:03 | -1.17 | 330.49 | 212 | 0.37 |
| gn401 | 16:18:22 | -51:44:43 | -0.99 | 332.04 | - | - |
| gn402 | 16:14:57 | -53:04:35 | -1.59 | 330.74 | 181 | 0.25 |
| gn403 | 16:22:28 | -52:06:20 | -1.69 | 332.24 | 187 | 0.30 |
| gn404 | 16:19:09 | -53:26:38 | -2.29 | 330.94 | 187 | 0.29 |
| gn405 | 16:26:52 | -52:21:02 | -2.35 | 332.54 | 189 | 0.22 |
| gn406 | 16:23:54 | -53:43:53 | -2.99 | 331.23 | 180 | 0.33 |
| gn407 | 16:31:31 | -52:28:44 | -2.95 | 332.93 | 180 | 0.22 |
| gn408 | 16:28:42 | -53:51:58 | -3.60 | 331.63 | 164 | 0.22 |
| gn409 | 16:15:51 | -54:48:45 | -2.86 | 329.82 | 186 | 0.26 |
| gn410 | 16:20:30 | -55:04:18 | -3.59 | 329.93 | 157 | 0.23 |
| gn411 | 16:09:37 | -55:10:07 | -2.54 | 328.78 | 164 | 0.32 |
| Musca (theta Mus) | 131 | 2.22 | ||||
| tm500 | 13:27:04 | -63:02:18 | -0.47 | 306.98 | 156 | 0.32 |
| tm501 | 13:31:18 | -63:34:41 | -1.07 | 307.37 | 131 | 0.42 |
| tm502 | 13:34:52 | -64:10:30 | -1.72 | 307.66 | 133 | 0.43 |
| tm503 | 13:23:58 | -64:59:52 | -2.36 | 306.38 | 121 | 0.37 |
| tm504 | 13:12:12 | -64:06:49 | -1.35 | 305.22 | 126 | 0.32 |
| tm505 | 13:16:15 | -64:40:50 | -1.96 | 305.60 | 119 | 0.36 |
| Total | 9.09 |