Simple hydrogen-bearing molecules in translucent molecular clouds

TL;DR

This paper investigates the relationships between column densities of simple molecules in translucent molecular clouds, revealing that H2, CH, and OH are closely related, while CH+ behaves differently.

Contribution

It identifies specific correlations among simple molecules in molecular clouds, highlighting the distinct behavior of CH+ compared to other molecules.

Findings

H2, CH, and OH have tight correlations in their column densities.

CH+ does not correlate with other simple molecules.

Molecules occupy similar environments except for CH+.

Abstract

We demonstrate relations between column densities of simple molecules: CH, CH$^{+}$, H$_{2}$ and OH. The H$_{2}$, CH and OH molecules seem to occupy the same environments because of tight relations between their column densities. In contrary to this CH$^{+}$ column density does not correlate with those of other simple molecules.