Table 5
Overview of the LTE modeling for the optically thin sulphur lines of Cygnus X-N30 and N12 targeting the warm chemistry.
| Cyg X-N30 (a) | Cyg X-N12 (a) | |||||
|---|---|---|---|---|---|---|
| Molecules | Nsp (c) | Tex (c) | FWHM (c) | Nsp (c) | Tex (c) | FWHM (c) |
| [cm−2] | [K] | [km s−1] | [cm−2] | [K] | [km s−1] | |
| OCS | 1.4 1017 |
150 |
5.0 | 5.9 1015 |
280 |
6.0 |
| OC34S | 6.5± 2.0 ×1015 | 170+50 | 5.0 | 9.7+0.4 ×1014 (d) | 280 | 3.0 |
| OC33S | 7.7 1014 |
130 |
1.5 | 2.7−0.8 ×1014 (d) | 270−90 (d) | 2.5 |
| C34S | 3.1+1.9 ×1015 (d) | 170+30 (d) | 4.5 | 6.6+0.1 ×1014 (d) | 280 | 5.5 |
| C33S | 1.0−0.5 ×1015 (d) | 170+30 (d) | 4.5 | 1.7 1014 |
260 |
4.0 |
| CS | 1.0−0.2 ×1016 (d) | 190 |
4.5 | 1.3± 0.3 ×1015 | 160 |
4.5 |
| H2CS | 2.4 1016 |
140±50 | 5.5 | 3.7 1015 |
140 |
3.5 |
| 34SO | 5.0 1016 |
290 |
6.0 | 1.0+0.1 ×1015 (d) | 230+60 (d) | 1.5 |
| SO2 (b) | 1.1−0.4 ×1018 (d) | 130 |
6.5 | 2.2+0.2 ×1016 (d) | 200+30 (d) | 2.0 |
| SO (b) | 1.2 1018 |
290 |
6.0 | 2.2+0.2 ×1016 (d) | 230+60 (d) | 1.5 |
| NS | 5.6−2.5 ×1015 (d) | 170+30 (d) | 6.0 | 5.4 1014 |
210 |
3.0 |
| 34SO2 | 4.8−1.7 ×1016 (d) | 130 |
6.5 | 1.0+2.0 ×1015 (d) | 200+30 (d) | 2.0 |
| 33SO | 7.0 1015 |
130 |
6.5 | - | - | - |
| 33SO2 | 2.1−1.1 ×1016 (d) | 200−50 (d) | 6.5 | - | - | - |
| CCS (e) | < 1015 | 190 |
4.5 | < 1015 | 160 |
4.0 |
| C3S (e) | < 1015 | 190 |
4.5 | < 1015 | 160 |
4.5 |
| CH3SH (e) | < 1016 | 190 |
4.5 | < 1015 | 160 |
4.5 |
| HSCN (e) | < 1015 | 190 |
4.5 | < 1015 | 160 |
4.5 |
Notes. (a)This includes the positions MM1a and MM2 for Cyg X-N30 and N12 (see Fig. 6), respectively, corresponding to a continuum peak of each of the binary sources. (b)The column density of the optically thick emission from SO and SO2 was determined using the isotopic ratios 32S/34S = 22.5 (Lodders 2003). Moreover, the same Tex and FWHM as of their corresponding 34S isotopolog were used. (c)The source size used to model the emission toward both sources is 1′′5. (d) If only the upper or lower limit is given, the best-fit model for the molecule is achieved at the given main value (i.e., Tex, Nsp) and no lower or upper limit of this value is found. (e)These molecules have not been detected. An upper limit of their column density has been determined based on Tex and FWHM from the other species within the same family.
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