Table 6
Column densities, excitation temperatures, FWHM and vpeak derived at the continuum peak position of N63.
| Molecule | Column density (cm−2) | Τex (K) | FWHM (km s−1) | vpeak (km s−1) |
|---|---|---|---|---|
| COMs and O-bearing species | ||||
| CH3OH(a) | 5.0 (0.2) × 1017 | 120 (50) | 4.0 | −6.0 |
| 13CH3OH(b) | 5.8 (0.3) × 1015 | 120 (50) | 4.0 | −6.0 |
| CH318OH | <5.0× 1015 | 120 | 4.0 | −6.0 |
| CH2DOH | 1.5 (0.4) × 1016 | 150 (40) | 4.0 | −5.5 |
| C2H5OH | <1.0× 1016 | 120 | 4.0 | −6.0 |
| CH3OCHO | 1.2 (0.4) × 1016 | 120 (40) | 4.0 | −5.5 |
| CH3OCH3 | 1.4 (0.4) × 1016 | 120 (40) | 4.0 | −5.0 |
| t-HCOOH | <3.0× 1015 | 120 | 4.0 | −6.0 |
| c-HCOOH | <6.0× 1014 | 120 | 4.0 | −6.0 |
| HDO(c) | 1.5 (1.0) × 1016 | 120 | 4.0 | −4.5 |
| S-bearing species | ||||
| SO(a) | 1.2 (0.3) × 1016 | 250 (50) | 4.5 | −5.5 |
| 33SO(b) | <2.0× 1014 | 250 | 4.5 | −5.5 |
| 34SO | 5.5(l.0)× 1014 | 250 (50) | 4.5 | −5.5 |
| SO2 | <4.0× 1015 | 250 | 4.5 | −5.5 |
| 33SO2 | <3.0× 1015 | 250 | 4.5 | −5.5 |
| 34SO2 | <3.0× 1015 | 250 | 4.5 | −5.5 |
| OCS(a) | 3.3 (1.1)× 1016 | 100 (30) | 3.0 | −5.0 |
| OC34S | 1.5 (0.5) × 1015 | 100 (30) | 3.0 | −5.0 |
| H2CS | 3.0 (1.0)× 1015 | 150 (40) | 5.0 | −5.0 |
| N-bearing species | ||||
| CH3CN, v8=1 | 5.0 (3.0)×1015 | 120 (20) | 5.0 | −5.0 |
| 13CH3CN(c) | <1.0× 1014 | 120 | 5.0 | −5.0 |
| HNCO | <2.0× 1015 | 120 | 5.0 | −5.0 |
| HC3N | <2.0× 1014 | 120 | 5.0 | −5.0 |
| HC15N | 1.0 (0.2) × 1014 | 220 (50) | 5.0 | −5.0 |
Notes. Values are derived from synthetic spectrum fitting with CASSIS, with the assumption of LTE. (a)Column densities for optically thick lines derived using local ISM ratios (Wilson 1999; Milam et al. 2005). (b)Upper limits were determined by setting Tех, FWHM, and vpeak, equal to that derived for CH3OH and SO, for the O- and S-bearing species respectively. (c)To estimate a column density for HDO, the excitation temperature and line width of methanol was assumed.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.