Table 1
Effect of the fringe correction for NGC 7027.
| Channel | Band | Amplitude (%) | |||||
|---|---|---|---|---|---|---|---|
| No correction | Fringe flat | Residual fringe | |||||
| A | 4.8 | [3.1 – 6.69] | 1.96 | [0.93 – 3.88] | 2.03 | [0.93 – 3.83] | |
| 1 | B | 6.56 | [4.42 – 8.84] | 0.91 | [0.42 – 1.7] | 0.77 | [0.35 – 1.49] |
| C | 8.86 | [6.38 – 11.56] | 0.66 | [0.3 – 1.18] | 0.58 | [0.26 – 1.05] | |
| A | 10.78 | [8.72 – 13.42] | 0.72 | [0.38 – 1.14] | 0.45 | [0.19 – 0.85] | |
| 2 | B | 12.4 | [9.84 – 15.32] | 0.54 | [0.28 – 0.98] | 0.46 | [0.22 – 0.83] |
| C | 11.35 | [8.96 – 13.65] | 0.47 | [0.21 – 0.88] | 0.31 | [0.14 – 0.56] | |
| A | 5.45 | [2.77 – 8.61] | 0.69 | [0.31 – 1.44] | 0.71 | [0.32 – 1.3] | |
| 3 | B | 2.81 | [1.39 – 3.6] | 0.32 | [0.11 – 0.83] | 0.3 | [0.14 – 0.73] |
| C | 1.75 | [1.13 – 2.2] | 0.29 | [0.11 – 0.64] | 0.3 | [0.11 – 0.63] | |
| A | 3.66 | [2.33 – 5.41] | 0.53 | [0.16 – 1.86] | 0.56 | [0.14 – 1.74] | |
| 4 | B | 7.4 | [6.01 – 9.2] | 0.63 | [0.22 – 1.27] | 0.48 | [0.18 – 0.85] |
| C | 12.03 | [10.22 – 14.62] | 1.13 | [0.48 – 2.48] | 0.59 | [0.22 – 1.29] | |
Notes. For each MRS channel and band, the median of the fringe peak amplitude measured from the tops is given and its 16th and 84th percentiles are shown in brackets. Values are shown before correction, after calibration by the fringe flat, and after residual fringe correction. All numbers are in percent.
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