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Table 2
Parameters of the survey.
| HCO+ | SiO | H13 CO+ | |
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| Velocity resolution | 1 kms-1 | 1 kms-1 | 1 kms-1 |
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| Rms sensitive | 28 mK | 20 mK | 20 mK |
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| Spatial range: | |||
| CMZ |
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| M+3.2+0.3 (Clump 2) |
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| M − 5.3+0.4 |
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| M − 4.4+0.6 |
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| M − 3.8+0.9 |
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| M+5.3 − 0.3 |
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| Sampling interval: |
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 a
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 a
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| Velocity range: | |||
| CMZ | −350 kms-1 ≤ v ≤ 350 kms-1 | −280 kms-1 ≤ v ≤ 300 kms-1 | −300 kms-1 ≤ v ≤ 250 kms-1 |
| M+3.2+0.3 | −300 kms-1 ≤ v ≤ 300 kms-1 | −150 kms-1 ≤ v ≤ 350 kms-1 | −180 kms-1 ≤ v ≤ 200 kms-1 |
| M − 5.3+0.4 | −350 kms-1 ≤ v ≤ 350 kms-1 | −150 kms-1 ≤ v ≤ 210 kms-1 | −190 kms-1 ≤ v ≤ 260 kms-1 |
| M − 4.4+0.6 | −350 kms-1 ≤ v ≤ 350 kms-1 | −150 kms-1 ≤ v ≤ 210 kms-1 | −190 kms-1 ≤ v ≤ 260 kms-1 |
| M − 3.8+0.9 | −350 kms-1 ≤ v ≤ 350 kms-1 | −320 kms-1 ≤ v ≤ 190 kms-1 | −190 kms-1 ≤ v ≤ 130 kms-1 |
| M+5.3 − 0.3 | −300 kms-1 ≤ v ≤ 300 kms-1 | −100 kms-1 ≤ v ≤ 270 kms-1 | −190 kms-1 ≤ v ≤ 280 kms-1 |
Notes.
(a)
In the most intense zones, see Fig. 2. M+3.2+0.3, M − 5.3+0.4, M − 4.4+0.6, M − 3.8+0.9, M+5.3 − 0.3, are the clouds observed by Bitran et al. (1997) and the positions of the cloud are defined by them.
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