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We correct the estimates of the dispersions in the rotational velocities for early-type stars in our Galaxy (Dufton et al. 2006, A&A, 457, 265) and the Magellanic Clouds (Hunter et al. 2008, A&A, 479, 541). The corrected values are π1/4 (i.e. approximately 33%) larger than those published in the original papers.

In our published paper there is an error in the order of the rows in Tables 1 through 6. We stated in the paper that the components are sorted in the order of increasing wavelengths in the linear Zeeman splitting (LZS) regime. However, in the published tables the values for the σ+ and σ- components appear reversed. As a result, researchers trying

In Table 1 of our original paper we include the coordinates of the centers of the 3.7' long slits obtained in the observations. However, these do not correspond to the centers of the slits drawn in our Figure 1, which represents the extension of the portions of the slits that we finally analyze in the paper (we remove some sections, as indicated in

We report in this paper on the design and progress of the ESO Laser Guide Star Facility. The project will create a user facility embedded in UT4, to produce in the Earth's mesosphere laser guide stars, which extend the sky coverage of adaptive optics systems on the VLT UT4 telescope. Embedded into the project are provisions for multiple LGS to cope