Volume 574, February 2015
|Number of page(s)||1|
|Published online||03 February 2015|
On the radiation driven alignment of dust grains: Detection of the polarization hole in a starless core (Corrigendum)
Max-Planck-Institut für extraterrestrische Physik,
2 Instituto de Ciencia de Materiales de Madrid (CSIC), Sor Juana Inés de la Cruz 3, 28049 Madrid, Spain
3 Observatorio Astronómico Nacional, Alfonso XII 3, 28014 Madrid, Spain
4 Institut de Ciències de l’Espai (CSIC-IEEC), Campus UAB, Facultat de Ciències, C5 par 2 a, 08193 Bellaterra, Catalunya, Spain
5 Departamento de Física – ICEx – UFMG, Caixa Postal 702, 30. 123-970 Belo Horizonte, Brazil
6 Department of Physics and Astronomy, Northwestern University, 2145 Sheridan Road, Evanston, IL 60208, USA
7 Max-Planck-Institut für Radioastronomie, Auf dem Hügel 69, 53121 Bonn, Germany
Key words: stars: formation / ISM: magnetic fields / techniques: polarimetric / ISM: individual objects: Core 109 / errata, addenda
Figure 2 in the original manuscript displays the polarization efficiency for the optical, near infrared and sub-millimeter (submm) polarimetric data as P/AV, where P is the polarization degree and AV is the visual extinction traced by the data. However, the polarization efficiency for the submm data should be simply P. By dividing P by AV, we obtain a steeper and wrong slope for the decrease in polarization efficiency. The suitable form for Fig. 2 of the original document is exhibited in Fig. 1 of the present corrigendum. The submm polarization efficiency decreases as ~−1.0 with respect to AV, instead of the originally published ~−2.0.
Although the decrease in polarization efficiency at the submm regime is shallower than originally proposed, our modelling of the polarization degree with respect to the relative intensity, I/Imax, still predicts the detection of a polarization hole (Sect. 3 of the published manuscript). Therefore, the main conclusions are unchanged.
Polarization efficiency of the optical and near-IR data (P/AV) and the submm data (PSM).
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© ESO, 2015
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