Catalogue of ~(12)CO(J = 1-0) and ~(13)CO(J = 1-0) Molecular Cloudsin the Carina Flare Supershell

摘要

We present a catalogue of ~(12)CO(J = 1-0) and ~(13)molecular clouds in the spatio-velocity rangeof the Carina Flare supershell, GSH 287+04-17. The data cover a region of 66 square degrees and were takenwith the NANTEN 4 m telescope, at spatial and velocity resolutions of 2:6 and 0.1 km s-I . Decomposition of theemission results in the identification of 156 ~(12)CO clouds and 60 ~(13)clouds, for which we provide observational andphysical parameters. Previous work suggests the majority of the detected mass forms part of a comoving molecularcloud complex that is physically associated with the expanding shell. The cloud internal velocity dispersions, degreeof virialization and size-linewidth relations are found to be consistent with those of other Galactic samples. However,the vertical distribution is heavily skewed towards high-altitudes. The robust association of high-z molecular cloudswith a known supershell provides some observational backing for the theory that expanding shells contribute to thesupport of a high-altitude molecular layer.