Open Access



Table 3:

The abundance ratio of CCH and its 13C isotopic species.

TMC-1 L1527

$\geq$170 $\geq$80
[CCH]/[13CCH]b $\geq$250 $\geq$135
[C13CH]/[13CCH]b 1.6(4) 1.6(1)

Notes. The numbers in parentheses represent the three sigma errors in units of the last significant digits. (a) Derived from the LVG model. [X] represents the abundance of X, and the [X]/[Y] ratio can be obtained from the column densities of X and Y, assuming that both molecules exist in the same region. (b) Derived from the integrated intensity ratio of the strongest hyperfine components of C13CH and 13CCH.

Source LaTeX | All tables | In the text

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.