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This article is an erratum for:

Volume 638, June 2020
Article Number C3
Number of page(s) 1
Section Interstellar and circumstellar matter
Published online 05 June 2020

Some typographical errors occurred during the production process of the original published article. The lines below Eqs. (14) and (15) should read “where we note as…”. Also, in Appendix C, Eqs. (C.15) and (C.16) were switched and the new Eq. (C.16) is not correct. The sentence that contains the two equations should read:

Defining (C.15)

a fraction (C.16)

of the XH+ formed by radiative association is converted in H2.

© ESO 2020

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