Carbon in different phases ([CII], [CI], and CO) in infrared dark clouds: Cloud formation signatures and carbon gas fractions (Corrigendum)

H. Beuther; S. E. Ragan; V. Ossenkopf; S. Glover; Th. Henning; H. Linz; M. Nielbock; O. Krause; J. Stutzki; P. Schilke; R. Güsten

doi:10.1051/0004-6361/201424757e

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Volume 574 (February 2015)

A&A, 574 (2015) C2

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Erratum

This article is an erratum for:
[https://doi.org/10.1051/0004-6361/201424757]

Issue		A&A Volume 574, February 2015


Article Number		C2
Number of page(s)		1
Section		Interstellar and circumstellar matter
DOI		https://doi.org/10.1051/0004-6361/201424757e
Published online		16 January 2015

A&A 574, C2 (2015)

Carbon in different phases ([CII], [CI], and CO) in infrared dark clouds: Cloud formation signatures and carbon gas fractions (Corrigendum)

H. Beuther¹, S. E. Ragan¹, V. Ossenkopf², S. Glover³, Th. Henning¹, H. Linz¹, M. Nielbock¹, O. Krause¹, J. Stutzki², P. Schilke² and R. Güsten⁴

¹ Max-Planck Institute for Astronomy, Königstuhl 17, 69117 Heidelberg, Germany
e-mail: name@mpia.de
² I. Physikalisches Institut, University of Cologne, Zülpicher Strasse 77, 50937 Köln, Germany
³ Center for Astronomy, Institute for Theoretical Astrophysics, Albert-Überle Strasse 2, 69120 Heidelberg, Germany
⁴ Max-Planck Institute for Radioastronomy, Auf dem Hügel 69, 53121 Bonn, Germany

Key words: stars: formation / stars: early-type / stars: general / stars: massive / ISM: clouds / errata, addenda

Erratum for: A&A 571, A53 (2014), DOI: 10.1051/0004-6361/201424757

The column density equation for ionized carbon N_{[ CII ]} on p. 8 unfortunately featured a typo. The correct equation should read: $\begin{matrix} N_{[CII]} = \frac{1}{3.43 \times 10^{-16}} [1 + 0.5 e^{91.25 / T_{kin}} (1 + \frac{2.4 \times 10^{-6}}{C_{ul}})] \int T_{mb} d v [c m^{-2}] \end{matrix}$ $\begin{eqnarray*} N_{\rm{[CII]}} = \frac{1}{3.43\times 10^{-16}}\left[1+0.5{\rm e}^{91.25/T_{\rm{kin}}}\left(1+\frac{2.4\times 10^{-6}}{C_{\rm ul}}\right)\right] \int T_{\rm{mb}}{\rm d}v ~\rm{[cm^{-2}]} \end{eqnarray*}$ where the main brightness temperature T_mb 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.

Acknowledgments

We thank Timea Csengeri for pointing us to this typo.

© ESO, 2015

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