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Correction ARTICLE

Front. Astron. Space Sci., 25 October 2019 | https://doi.org/10.3389/fspas.2019.00067

Corrigendum: On the Nature of the Core of α Centauri A: The Impact of the Metallicity Mixture

Benard Nsamba1,2*, Tiago L. Campante1,2, Mário J. P. F. G. Monteiro1,2, Margarida S. Cunha1,2 and Sérgio G. Sousa1,2
  • 1Instituto de Astrofísica e Ciências do Espaço, Universidade do Porto, Porto, Portugal
  • 2Departamento de Física e Astronomia, Faculdade de Ciências da Universidade do Porto, Porto, Portugal

A Corrigendum on
On the Nature of the Core of α Centauri A: The Impact of the Metallicity Mixture

by Nsamba, B., Campante, T. L., Monteiro, M. J. P. F. G., Cunha, M. S., and Sousa, S. G. (2019). Front. Astron. Space Sci. 6:25. doi: 10.3389/fspas.2019.00025

In the original article, there was a mistake in Figure 3 as published.

FIGURE 3
www.frontiersin.org

Figure 3. Scatter plots showing core radius (Rc) vs core mass (Mc) for best-fit models with convective cores obtained using grid B (Run I). Top left is color-coded according to the model mass (M), top right is color-coded according to the initial metal mass fraction (Z), and bottom panel is color-coded according to the overshoot parameter (f ov).

This figure aimed at exploring trends regarding the contribution from the dominant model properties (i.e., mass, initial metal mass fraction, and overshoot parameter) toward the convective core sizes of the best-fit models of α Centauri A. However, the data plotted in Figure 3 in the original article represents the models with convective cores that satisfy a probability threshold required to fit the sets of observables (i.e., seismic observables, classical observables, and an interferometric radius), instead of showing the best-fit models with convective cores that satisfy the sets of observables within 1σ. The corrected Figure 3 appears below.

The authors apologize for this error and state that this does not change the scientific conclusions of the article in any way. The original article has been updated.

Keywords: HD 128620, asteroseismology, stellar modeling, fundamental parameters, convection, radiation

Citation: Nsamba B, Campante TL, Monteiro MJPFG, Cunha MS and Sousa SG (2019) Corrigendum: On the Nature of the Core of α Centauri A: The Impact of the Metallicity Mixture. Front. Astron. Space Sci. 6:67. doi: 10.3389/fspas.2019.00067

Received: 02 July 2019; Accepted: 04 October 2019;
Published: 25 October 2019.

Edited by:

Jadwiga Daszynska-Daszkiewicz, University of Wrocław, Poland

Reviewed by:

Joyce Ann Guzik, Los Alamos National Laboratory (DOE), United States

Copyright © 2019 Nsamba, Campante, Monteiro, Cunha and Sousa. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

*Correspondence: Benard Nsamba, benard.nsamba@astro.up.pt