Table 3
Column densities.
| Position | beam | Molecule | Column density (cm−2) | O18/O17 | O16/O17 | O16/O18 |
|---|---|---|---|---|---|---|
| MeOH1 | 2″.0 × 2″.0 | CH318OHa,c | (3.7 ± 0.2) × 1015 | 3.3 ± 0.2 | N.A. | N.A. |
| CH317OHa,d | (1.11 ± 0.06) × 1015 | |||||
| MeOH2 | 2″.0 × 2″.0 | CH318OH b,c | (9.8 ± 0.5) × 1015 | 3.3 ± 0.2 | N.A. | N.A. |
| CH317OHb,d | (3.0 ± 0.2) × 1015 | |||||
| dM-1e | 3″.8 × 2″.0 | CH318OH b,c | (6.5 ± 0.3) × 1015 | 3.5 ± 0.3 | 2300 ± 300 | 650 ± 70 |
| CH317OHb,d | (1.9 ± 0.1) × 1015 | |||||
| CH3OHb,f | (4.2 ± 0.4) × 1018 | |||||
| dM-3g | 3″.8 × 2″.0 | CH318OHa,c | (2.4 ± 0.1) × 1015 | 3.4 ± 0.3 | 2500 ± 200 | 710 ± 60 |
| CH317OHa,d | (6.9 ± 0.4) × 1014 | |||||
| CH3OHa,f | (1.7 ± 0.1) × 1018 | |||||
Notes. (a)The rotation temperature of 58 K derived by Peng et al. (2012) is assumed. (b)The rotation temperature of 130 K derived by Peng et al. (2012) is assumed. (c)The column density is derived from a single transition line of CH318OH (50–40 E). (d) The column density is derived from a single transition line of CH317OH (50–40 E). (e)The position of dM-1 is (αJ2000, δJ2000) = (05h35m14s.442, −05°22′34″.86). (f)The column density is estimated by Peng et al. (2012). (g)The position of dM-3 is (αJ2000, δJ2000) = (05h35m14s.107, −05°22′37″.43).
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