Chemistry of C<sub>3</sub>and carbon chain molecules in DR21(OH)
Chemistry of C<sub>3</sub>and carbon chain molecules in DR21(OH)
Context. C3 is the smallest pure carbon chain detected in the dense environment of star-forming regions, although diatomic C2 is detected in diffuse clouds. Measurement of the abundance of C3 and the chemistry of its formation in dense star-forming regions has remained relatively unexplored.