The ortho-to-para ratio of HCl: Quasi-classical trajectory calculations and new simulations in light of new observations

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Table 1

H₂Cl⁺ lines observed with ALMA.

Species	o/p form	Line	Rest frequency^a	Sky frequency^b	Dates of observations
			(GHz)	(GHz)

H₂Cl⁺	ortho	1₁₀–1₀₁	189.225^c	100.341	2014, Jul. 21 and Aug. 26
H₂Cl⁺	para	1₁₁–0₀₀	485.418^c	257.404	2014, Jun. 06 and Jul. 29

Notes.

^(a)

Rest frequencies are taken from the Cologne Database for Molecular Spectroscopy (CDMS, http://www.astro.uni-koeln.de/cdms/) and references therein.

^(b)

Sky frequencies are given assuming a redshift z_abs = 0.88582, heliocentric frame.

^(c)

The frequency is that of the strongest hyperfine component.

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