Detection of interstellar H2CCCHC3N - A possible link between chains and rings in cold cores

Free Access

Table 1.

Column density ratios of pure hydrocarbon and their CN derivatives detected toward TMC-1.

Molecular pair	R-H/R-CN ratio	Reference
H₂CCCHCCH/H₂CCCHC₃N	0.1 ^(a), 60 ^(b)	Cernicharo et al. (2021c); this work
CH₃C₂H/CH₂(CN)CCH	∼120	Snyder et al. (2006), McGuire et al. (2020)
CH₃C₂H/CH₃C₃N	∼64	Snyder et al. (2006), Remijan et al. (2006)
CH₃C₄H/CH₃C₅N	∼35	Snyder et al. (2006), Remijan et al. (2006)
CH₂CCCH/CH₂CCCCN	∼100	Cernicharo et al. (2021a), Lee et al. (2021b)
CH₂CCCH/HCCCHCHCN	∼50	Cernicharo et al. (2021a), Lee et al. (2021b)

Notes.

^(a)

Based on Source Model A, with a column density of 9 × 10¹³ cm⁻².

^(b)

Based on Source Model B, with a column density of 2 × 10¹¹ cm⁻².

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.