Table A.1
Parameters of the 6.7 GHz CH3OH maser cloudlets detected toward Cepheus A HW2.
| Feature | VLSR | F peak | Δx | Δy | V x | V y |
| # | (km s-1) | (Jy beam-1) | (mas) | (mas) | (km s-1) | (km s-1) |
|
|
||||||
| Cluster I: mean LSR velocity of –2.31 km s-1 | ||||||
| 1 | –1.68 | 1.04 (3rd) | 19.38 ± 0.17 | − 4.85 ± 0.10 | ... | ... |
| 2 | –1.73 | 22.84 (1st) | − 0.00 ± 0.01 | − 0.01 ± 0.01 | 0.61 ± 0.06 | 1.49 ± 0.06 |
| ... | ... | ... | ... | |||
| ... | ... | ... | ... | |||
| 3 | –1.90 | 0.57 (1st) | − 25.36 ± 0.18 | 4.35 ± 0.09 | 1.53 ± 0.37 | 0.64 ± 0.18 |
| 4 | –2.03 | 1.81 (1st) | − 51.33 ± 0.06 | 17.08 ± 0.05 | ... | ... |
| 5 | –2.17 | 4.07 (1st) | − 47.75 ± 0.06 | 23.57 ± 0.05 | − 0.40 ± 0.20 | 0.08 ± 0.16 |
| 6 | –2.30 | 52.18 (1st) | − 38.97 ± 0.01 | 32.19 ± 0.01 | − 0.10 ± 0.07 | 1.40 ± 0.07 |
| ... | ... | ... | ... | |||
| ... | ... | ... | ... | |||
| 7 | –2.30 | 3.09 (1st) | − 63.16 ± 0.15 | 47.39 ± 0.12 | ... | ... |
| 8 | –2.47 | 32.57 (1st) | − 76.76 ± 0.02 | 54.28 ± 0.02 | − 0.20 ± 0.08 | 0.25 ± 0.07 |
| ... | ... | ... | ... | |||
| ... | ... | ... | ... | |||
| 9 | –2.47 | 24.08 (1st) | − 30.86 ± 0.02 | 26.70 ± 0.02 | 0.53 ± 0.15 | 0.83 ± 0.13 |
| ... | ... | ... | ... | |||
| 10 | –2.65 | 6.43 (1st) | − 92.35 ± 0.06 | 62.36 ± 0.04 | ... | ... |
| ... | ... | ... | ... | |||
| 11 | –2.82 | 7.65 (1st) | − 108.34 ± 0.02 | 66.52 ± 0.01 | − 0.19 ± 0.08 | 0.24 ± 0.07 |
| ... | ... | ... | ... | |||
| ... | ... | ... | ... | |||
| 12 | –2.91 | 0.94 (1st) | 40.11 ± 0.04 | 3.54 ± 0.04 | 1.18 ± 0.13 | 0.79 ± 0.09 |
| 13 | –2.91 | 0.20 (3rd) | 33.83 ± 0.27 | − 2.56 ± 0.17 | ... | ... |
| 14 | –3.00 | 0.25 (1st) | − 121.31 ± 0.10 | 67.99 ± 0.10 | ... | ... |
| 15 | –3.00 | 0.15 (3rd) | 19.37 ± 0.18 | − 3.01 ± 0.10 | ... | ... |
| Cluster II: mean LSR velocity of –2.44 km s-1 | ||||||
| 16 | –0.10 | 0.08 (3rd) | 378.41 ± 0.16 | − 135.89 ± 0.13 | ... | ... |
| 17 | –0.45 | 0.78 (3rd) | 311.09 ± 0.02 | − 130.28 ± 0.03 | ... | ... |
| 18 | –0.45 | 0.08 (3rd) | 321.51 ± 0.19 | − 140.62 ± 0.26 | ... | ... |
| 19 | –0.94 | 0.13 (1st) | 174.92 ± 0.14 | − 107.37 ± 0.13 | ... | ... |
| 20 | –1.20 | 0.21 (3rd) | 323.52 ± 0.07 | − 111.97 ± 0.09 | ... | ... |
| 21 | –1.33 | 0.07 (3rd) | 311.68 ± 0.18 | − 107.07 ± 0.17 | ... | ... |
| 22 | –1.81 | 1.67 (3rd) | 368.78 ± 0.08 | − 108.69 ± 0.07 | ... | ... |
| 23 | –2.17 | 1.65 (3rd) | 376.92 ± 0.07 | − 112.75 ± 0.08 | ... | ... |
| 24 | –2.42 | 9.42 (3rd) | 359.55 ± 0.09 | − 116.89 ± 0.09 | ... | ... |
| 25 | –2.61 | 7.59 (3rd) | 350.78 ± 0.05 | − 117.32 ± 0.04 | ... | ... |
| 26 | –2.69 | 1.67 (3rd) | 360.80 ± 0.13 | − 125.16 ± 0.11 | ... | ... |
| 27 | –2.78 | 1.25 (1st) | 371.31 ± 0.10 | − 128.49 ± 0.10 | − 2.89 ± 0.15 | 3.93 ± 0.16 |
| 28 | –2.82 | 0.86 (1st) | 377.87 ± 0.11 | − 135.48 ± 0.10 | − 3.03 ± 0.25 | 3.50 ± 0.22 |
| 29 | –3.18 | 0.78 (1st) | 415.83 ± 0.03 | − 117.00 ± 0.03 | − 2.41 ± 0.11 | 1.54 ± 0.11 |
| 30 | –3.22 | 0.68 (1st) | 406.50 ± 0.04 | − 135.77 ± 0.04 | ... | ... |
| 31 | –3.44 | 0.59 (1st) | 405.01 ± 0.09 | − 140.44 ± 0.10 | ... | ... |
| Cluster III: mean LSR velocity of –3.63 km s-1 | ||||||
| 32 | –3.35 | 0.41 (1st) | − 259.51 ± 0.14 | 160.15 ± 0.20 | ... | ... |
| 33 | –3.44 | 2.37 (1st) | − 242.84 ± 0.03 | 145.19 ± 0.03 | − 0.15 ± 0.08 | 0.00 ± 0.09 |
| 34 | –3.52 | 0.37 (3rd) | − 286.04 ± 0.22 | 185.77 ± 0.25 | ... | ... |
| 35 | –3.53 | 2.52 (1st) | − 253.31 ± 0.05 | 147.95 ± 0.06 | − 0.87 ± 0.10 | 0.61 ± 0.13 |
| 36 | –3.61 | 0.83 (3rd) | − 273.56 ± 0.21 | 123.62 ± 0.19 | ... | ... |
| 37 | –3.62 | 1.49 (2nd) | − 340.85 ± 0.09 | 255.21 ± 0.12 | ... | ... |
| 38 | –3.66 | 10.84 (1st) | − 305.94 ± 0.03 | 189.99 ± 0.02 | ... | ... |
| 39 | –3.66 | 5.38 (1st) | − 351.66 ± 0.04 | 264.29 ± 0.06 | ... | ... |
| 40 | –3.66 | 3.02 (1st) | − 297.34 ± 0.09 | 195.69 ± 0.12 | − 0.28 ± 0.23 | 0.87 ± 0.27 |
| 41 | –3.66 | 2.60 (1st) | − 304.12 ± 0.11 | 201.49 ± 0.09 | ... | ... |
| 42 | –3.70 | 1.45 (1st) | − 313.51 ± 0.20 | 196.58 ± 0.22 | ... | ... |
| 43 | –4.49 | 0.10 (2nd) | − 183.38 ± 0.30 | 124.61 ± 0.19 | ... | ... |
| Cluster IV: mean LSR velocity of –4.05 km s-1 | ||||||
| 44 | –3.88 | 5.88 (1st) | 1326.16 ± 0.04 | − 142.10 ± 0.03 | ... | ... |
| 45 | –3.88 | 3.42 (1st) | 1329.83 ± 0.13 | − 153.46 ± 0.09 | ... | ... |
| 46 | –3.92 | 5.28 (1st) | 1294.00 ± 0.06 | − 170.31 ± 0.06 | ... | ... |
| 47 | –4.01 | 19.93 (1st) | 1312.58 ± 0.03 | − 143.87 ± 0.02 | − 0.44 ± 0.09 | − 0.03 ± 0.08 |
| 48 | –4.01 | 5.28 (1st) | 1302.81 ± 0.09 | − 163.01 ± 0.07 | ... | ... |
| 49 | –4.05 | 13.62 (1st) | 1314.18 ± 0.06 | − 157.25 ± 0.03 | ... | ... |
| 50 | –4.19 | 17.16 (1st) | 1309.41 ± 0.02 | − 156.94 ± 0.02 | ... | ... |
| ... | ... | ... | ... | |||
| 51 | –4.27 | 1.36 (1st) | 1279.61 ± 0.15 | − 176.55 ± 0.10 | ... | ... |
| 52 | –4.32 | 3.19 (1st) | 1287.24 ± 0.05 | − 163.20 ± 0.04 | − 0.65 ± 0.26 | − 0.03 ± 0.17 |
| Cluster V: mean LSR velocity of –4.54 km s-1 | ||||||
| 53 | –4.36 | 1.55 (1st) | 111.09 ± 0.10 | 680.53 ± 0.18 | 0.38 ± 0.18 | − 1.31 ± 0.35 |
| 54 | –4.36 | 1.10 (1st) | 118.36 ± 0.19 | 665.06 ± 0.32 | ... | ... |
| 55 | –4.41 | 1.30 (1st) | 102.88 ± 0.10 | 694.45 ± 0.16 | ... | ... |
| 56 | –4.41 | 0.24 (3rd) | 94.65 ± 0.11 | 703.51 ± 0.18 | ... | ... |
| 57 | –4.54 | 0.26 (1st) | 131.94 ± 0.17 | 518.21 ± 0.17 | 1.07 ± 0.55 | − 3.35 ± 0.56 |
| 58 | –4.58 | 0.90 (1st) | 122.06 ± 0.08 | 527.51 ± 0.08 | 0.59 ± 0.19 | − 1.47 ± 0.20 |
| 59 | –4.67 | 0.51 (1st) | 102.48 ± 0.14 | 546.56 ± 0.12 | 0.27 ± 0.41 | − 2.27 ± 0.36 |
| 60 | –4.71 | 1.78 (1st) | 92.14 ± 0.03 | 556.99 ± 0.04 | 1.32 ± 0.11 | − 2.03 ± 0.11 |
| 61 | –4.80 | 0.29 (1st) | 86.64 ± 0.10 | 551.32 ± 0.09 | 1.75 ± 0.38 | − 0.96 ± 0.35 |
| 62 | –4.80 | 0.29 (1st) | 73.17 ± 0.17 | 573.26 ± 0.16 | 1.57 ± 0.48 | − 2.21 ± 0.45 |
| 63 | –4.93 | 0.18 (1st) | − 27.66 ± 0.16 | 551.60 ± 0.14 | 0.34 ± 0.59 | − 1.07 ± 0.43 |
| 64 | –4.93 | 0.07 (1st) | − 35.71 ± 0.29 | 554.01 ± 0.37 | ... | ... |
Notes. Each maser emission center is labeled by decreasing LSR velocity in Col. 1, and grouped within the five clusters defined in Fig. 2. Columns 2 and 3 report the LSR velocity and brightness of the brightest spot of each cloudlet at the first epoch of detection (in brackets). Columns 4 and 5 give the relative centroid position of each cloudlet and their uncertainties in the east and north directions, respectively. The absolute position of the reference spot, belonging to cloudlet 2, is reported in Table 1. Columns 6 and 7 give the projected components of the cloudlet proper motion along the east and north directions, respectively. More details are provided in Sect. 3.
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