The team found that the boundary between the disk and envelope is located 90 astronomical units from the central baby star. (sciencedaily.com)
In a few cases signatures of rotation have been found, but it has been difficult to resolve clearly, especially around massive baby stars. (alma-telescope.jp)
This hot cloud is about ten times larger than those found around typical solar - mass baby stars, which indicates that the star formation process has more diversity than ever thought. (alma-telescope.jp)