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Table 4
Derived molecular abundances relative to H2.
| Molecule | Absorption cloud velocity ( km s-1) | Units | ||||||||||
| −120 | −106 | −92 | −80 | −73 | −58 | −47 | −40 | −23 | 0 | +20 | ||
|
|
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| OH | 1.8(2) | 0.69(6) | 1.30(8) | 1.6(1) | 1.01(7) | 1.3(1) | 0.8(1) | 0.67(8) | 1.1(1) | 0.69(9) | 1.1(2) | 10-6 |
| c-C3H2[1] | 2.5 | 2.5 | 2.5 | 2.5 | 2.5 | 2.5 | 2.5 | 2.5 | 2.5 | 2.5 | 2.5 | 10-9 |
| c-H13CCCH | 1.0(2) | 1.0(3) | 0.6(4) | <0.3 | 0.2(1) | 0.9(2) | 1.0(2) | 10-10 | ||||
| H2CO | 4.1(5) | 4.8(9) | 1.8(2) | 4.1(5) | 3.4(2) | 2.0(2) | 2.9(3) | 7.0(7) | 2.9(4) | 5.8(16) | 2.5(5) | 10-7 |
H CO |
8.4(9) | 4.5(9) | 3.4(13) | 10(4) | 6.2(11) | 10(1) | 10-9 | |||||
| SO | 1.2(1) | <0.3 | 0.6(1) | 1.3(1) | 0.6(2) | 0.8(2) | 2.5(3) | 1.1(3) | 1.4(2) | 0.9(2) | 10-9 | |
| CS | 1.3(2) | 1.6(1)[2] | 0.90(6) | 1.7(1) | 1.7(1) | 0.22(4) | 0.58(6) | 2.5(3)[2] | 0.72(8) | 0.9(1)[2] | 0.46(8) | 10-8 |
| C34S | 1.9(2) | 0.3(1) | 2.0(2) | 2.6(2) | <1.2 | 0.6(2) | 3.6(4) | 0.7(1) | 1.7(2) | 0.8(1) | 10-9 | |
| CCS | 2.8(3) | 0.6(2) | ≳0.8 | 1.9(4) | ≳0.8 | 3.5(4) | 1.2(3) | 1.8(2) | 1.1(2) | 10-10 | ||
| HCS+ | 2.6(4) | 1.7(6) | 2.4(6) | 1.4(4) | ≲2.8 | 2.9(4) | 10-10 | |||||
| H2CS | 3.3(6) | 1.0(5) | ≤1.4 | 1.3(1) | 5.6(8) | ≲2.3 | 1.9(4) | ≲0.3 | 10-10 | |||
| SiO | >0.4 | 1.3(1)[3] | 1.7(1) | <0.4 | 0.15(7)[3] | 0.37(5) | 0.39(6) | 1.6(2) | 1.3(2) | 10-9 | ||
| 29SiO | 3.6(12) | 4(3)[3] | 9(2) | 12(2) | 11(2) | 10-11 | ||||||
| 30SiO | 2.2(9) | 10-11 | ||||||||||
| l-C3H | 1.9(3) | 1.5(5) | 2.5(5) | 2.9(6) | ≲6.1 | 4.6(11) | 2.1(3) | 2.2(6) | 10-10 | |||
| l-C3H+ | 4.4(3) | 11(4) | 11(4) | 4.8(2) | 4.0(1) | 10-11 | ||||||
Notes. [1] The abundance of c-C3H2 is assumed to be 2.5 × 10-9. [2] Peak optical depths are >0.7 in CS absorption. [3] Appears to be a wing associated with the −73 or −40 km s-1 gas instead of a separate component.
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