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This article is an erratum for: [this article]

Volume 593, September 2016
Article Number C1
Number of page(s) 1
Section Interstellar and circumstellar matter
Published online 30 August 2016

We have noticed two typos in our original paper. In Sect. 3.1, Eq. (2), which gives the expression of the effective temperature of an ion-neutral reaction, should read (Pineau des Forêts et al. 1986) (1)In Sect. 5.2, the destruction timescale of the CH+ by reaction with H2 should read ~1 yr . These correct expressions are those that have been used in all the calculations performed in our original paper. These typos have therefore no bearing on the paper results/conclusions.


© ESO, 2016

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