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This article is an erratum for:

Volume 574, February 2015
Article Number C2
Number of page(s) 1
Section Interstellar and circumstellar matter
Published online 16 January 2015

The column density equation for ionized carbon N[ CII ] on p. 8 unfortunately featured a typo. The correct equation should read: where the main brightness temperature Tmb is in K and the velocity dv in km s-1.

The actual calculations and results presented in the paper were all conducted with the correct equation. Therefore, all results remain unchanged.


We thank Timea Csengeri for pointing us to this typo.

© ESO, 2015

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