Table 5
Lower limits for the expected I([C ii]) in diffuse clouds derived from the photo electric heating rate following Eq. (4).
| (1) | (2) | (3) | (4) | ||||||||
| I([C ii])HCO+ | I([C ii])COP | I([C ii])COV | |||||||||
| K km s-1 | K km s-1 | K km s-1 | |||||||||
|
|
|||||||||||
| LOS towards quasar | CO-peak | CO-void | |||||||||
| B0355+508 | |||||||||||
| A | 1.4 ± 0.2 | 1.5 ± 0.2 | 1.2 ± 0.1 | ||||||||
| B | 1.5 ± 0.2 | 0.3 ± 0.2 | 0.4 ± 0.1 | ||||||||
| C | 1.5 ± 0.2 | 4.7 ± 0.5 | 1.1 ± 0.1 | ||||||||
| D | 1.3 ± 0.2 | – | – | ||||||||
| E | 1.4 ± 0.2 | – | – | ||||||||
| B0212+735 | |||||||||||
| F | 0.8 ± 0.1 | – | – | ||||||||
| G | 3.5 ± 0.5 | 1.9 ± 0.2 | 1.3 ± 0.1 | ||||||||
Notes. (1) Designation of the assigned velocity components. (2) Expected integrated [C ii] intensity based on the total hydrogen column N(H)HCO+ derived from the HCO+ absorptions and an H2 fraction of 35%; (3) and(4) Expected integrated [C ii] intensities in the positions CO-peak (I([C ii])COP) and CO-void (I([C ii])COV) based on molecular hydrogen column densities derived from the CO CO column density. The contribution of H i to the total amount of hydrogen is not considered.
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