Discovery of C5H+ and detection of C3H+ in TMC-1 with the QUIJOTE line survey

Free Access

Table 2.

Theoretical spectroscopic parameters for the different molecular candidates for the observed lines in TMC-1 (all in MHz).

		C₅H⁺ (¹Σ)		l-C₅H⁻ (³Σ)		ql-C₅H⁻ (¹A)		C₅H (²Π)
Parameter	TMC-1 ^(a)	Calc. ^(b)	Scaled ^(c)	Calc. ^(b)	Scaled ^(c)	Calc. ^(b)	Scaled ^(c)	Exp. ^(d)	Calc. ^(b)
B_e	2411.94397(55)	2404.2	2410.3	2366.4	2372.4	2389.5	2395.5 ^(e)	2395.131(1)	2389.1
D × 10⁻⁶	138(3)	102	127	97.9	121	101	126	127.41(3)	103

Notes.

^(a)

Parameters derived using the TMC-1 frequencies from Table 1.

^(b)

This work; see text.

^(c)

This work; scaled by the ratio Exp/Calc. of the corresponding parameter for C₅H species.

^(d)

Cernicharo et al. (1986a,b, 1987), Gottlieb et al. (1986), McCarthy et al. (1999).

^(e)

(B + C)/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.