EDP Sciences logo
Subscriber Authentication Point
Search
Menu
Home All issues Volume 683 (March 2024) A&A, 683 (2024) C2 Full HTML
Issue
A&A
Volume 683, March 2024
Article Number C2
Number of page(s) 1
Section The Sun and the Heliosphere
DOI https://doi.org/10.1051/0004-6361/202449183e
Published online 11 March 2024

Erratum for: A&A, 670, A31 (2023), https://doi.org/10.1051/0004-6361/202142996

Erratum for: A&A, 627, A25 (2019), https://doi.org/10.1051/0004-6361/201834154

There were some errors, which do not affect the results that were presented, in the expressions for the viscosity and thermal conductivity coefficients and cross sections. The correct ones, that is to say those used in the code in all of the simulations, are as follows:

ξ n = k B T n π m H 2 Σ nn and ξ c = k B T c π m H 2 Σ ii , $$ \begin{aligned} \xi _{\rm n} = \frac{ \sqrt{k_{\rm B} T_{\rm n} \pi m_{\rm H}}}{2 \Sigma _{\rm nn} } \text{ and} \xi _{\rm c} = \frac{\sqrt{k_{\rm B} T_{\rm c} \pi m_{\rm H}}}{2 \Sigma _{\rm ii}}, \end{aligned} $$(1)

K n = 2 k B π k B T n m H Σ nn · $$ \begin{aligned} K_{\rm n} = \frac{2 k_{\rm B} \sqrt{\frac{\pi k_{\rm B} T_{\rm n}}{m_{\rm H}}}}{\Sigma _{\rm nn}}\cdot \end{aligned} $$(2)

The collisional cross sections used in Eqs. (1) and (2) are

Σ nn = 7.73 × 10 − 19 m 2 and Σ ii = 20 π 2 3 ( e 2 4 π ϵ 0 k B T c ) 2 m 2 . $$ \begin{aligned} \Sigma _{\rm nn}=7.73 \times 10^{-19} \mathrm{m}^2 \;\text{ and}\; \Sigma _{\rm ii}=\frac{20\pi \sqrt{2}}{3} \left( \frac{e^2}{4 \pi \epsilon _0 k_{\rm B} T_{\rm c}} \right)^2 \mathrm{m}^2. \end{aligned} $$(3)

The incorrect expressions appear in the following:

References

  1. Popescu Braileanu, B., Lukin, V. S., Khomenko, E., & de Vicente, Á. 2019, A&A, 627, A25 [NASA ADS] [CrossRef] [EDP Sciences] [Google Scholar]
  2. Popescu Braileanu, B., Lukin, V. S., & Khomenko, E. 2023, A&A, 670, A31 [NASA ADS] [CrossRef] [EDP Sciences] [Google Scholar]

© The Authors 2024

Licence Creative CommonsOpen Access article, published by EDP Sciences, under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

This article is published in open access under the Subscribe to Open model. Subscribe to A&A to support open access publication.

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.