摘要：An error occurred during the production process of the original
published version. The unit of the total dust disk mass (M dust )
was written “M ? ” (solar mass), but it should read “M ⊕ ” (Earth
mass). This typo occurred in the following places: Abstract,
line 8; Table 3, headers of the last column; Sect. 4.5, three occur-
rences in the second paragraph; and Sect. 5.2, three occurrences
in the first paragraph.
关键词：Key wordsenplanets and satellites: formationbrown dwarfsstars: pre-main sequenceerrata, addenda
