Table 1
Line parameters of the CH emission observed toward several cores.
| Source | Transition | T MB | ΔV | V LSR |
|
| (α2000,δ2000) | [K] | [km s-1] | [km s-1] | [K km s-1] | |
|
|
|||||
| TMC-1(CP) | F = 1−1 narrow | 0.536(12) | 0.26(1) | 5.916(3) | 0.787(3) |
|
F = 1−1 broad | 0.429(8) | 1.28(2) | 6.123(8) | – |
| F = 0−1 narrow | 0.237(8) | 0.27(1) | 5.693(4) | 0.333(3) | |
| F = 0−1 broad | 0.181(5) | 1.29(3) | 5.892(13) | – | |
| TMC-1(NH3) | F = 1−1 | 0.445(22) | 1.40(8) | 5.97(3) | 0.665(22) |
|
F = 0−1 | 0.205(21) | 1.44(17) | 5.81(7) | 0.349(21) |
| CI peak | F = 1−1 | 0.407(21) | 1.60(9) | 5.97(4) | 0.759(23) |
|
F = 0−1 | 0.193(20) | 1.46(18) | 5.85(8) | 0.305(22) |
| L1527 | F = 1−1 narrow | 0.333(58) | 0.22(5) | 6.26(2) | 0.607(22) |
|
F = 1−1 broad | 0.310(30) | 1.57(14) | 6.34(5) | – |
| F = 0−1 narrow | 0.204(64) | 0.31(11) | 6.02(3) | 0.179(17) | |
| F = 0−1 broad | 0.089(57) | 1.13(46) | 6.12(16) | – | |
Notes. TMB, ΔV, and VLSR are obtained by a Gaussian fit. The error in the parentheses denotes one standard deviation in units of the last significant digits. The VLSR values refer to the rest frequencies given in Sect. 2, and the error of VLSR does not include the uncertainty of the rest frequency. A slight difference of the VLSR values between the F = 1−1 (main) and F = 0−1 (satellite) component likely originates from the error of the rest frequency of the F = 0−1 component. See text for details.
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