Table 3
Rotational temperature and column density of SO2 and 34SO2 from two methods.
| Source | Tex(SO2) (K) | N(SO2) | Tex(34SO2) (K) | N(34SO2) | NSO2/N34SO2 | ||||
|---|---|---|---|---|---|---|---|---|---|
| RD | MCMC | RD | MCMC | RD | MCMC | RD | MCMC | ||
| o Ceti | 542±168 | 410±36 | 7.06e+16 | 6.76e+16 | 214±71 | 296±4 | 2.16e+15 | 2.21e+15 | 32±6 |
| R Leo | 393±112 | 489±29 | 1.91e+16 | 2.49e+16 | 363±53 | 436±48 | 1.85e+15 | 1.89e+15 | 10±3 |
| R Dor | 405±126 | 364±26 | 7.85e+16 | 4.05e+16 | — | 258±54 | — | 1.55e+15 | 26±8 |
| W Hya | 610±198 | 419±4 | 5.68e+16 | 5.54e+16 | — | 573±22 | — | 3.17e+15 | 18±4 |
| EP Aqr | 174±16 | 209±4 | 1.02e+15 | 1.97e+15 | — | 176±37 | — | 1.61e+14 | 12±5 |
Notes. RD - rotational diagram method; MCMC - Monte Carlo Markov chain method. For the MCMC fitting, we used the following emission regions: o Ceti - 1″(∼102 au), R Dor - 1.5″(∼68 au), R Leo 1″(∼130 au), W Hya - 1″(∼104 au), and EP Aqr - 3″(∼330 au), which were obtained from the moment 0 map analysis.
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