Catalog of High Velocity Dispersion Compact Clouds in the Central Molecular Zone of Our Galaxy

Abstract

This study developed an automated identification procedure for compact clouds with broad velocity widths in the spectral line data cubes of highly crowded regions. The procedure was applied to the CO J=3-2 line data, obtained using the James Clerk Maxwell Telescope, to identify 184 high velocity dispersion compact clouds (HVCCs), which is a category of peculiar molecular clouds found in the central molecular zone of our galaxy. A list of HVCCs in the area -1.4°<l<+2.0°, -0.25°<b<+0.25° was presented with their physical parameters, CO J=3-2/J=1-0 intensity ratios, and morphological classifications. Consequently, the list provides several intriguing sources that may have been driven by encounters with point-like massive objects, local energetic events, or cloud-to-cloud collisions.

68 pages, 53 figures, 5 tables

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• The mass distribution in the Galactic Centre from interferometric astrometry of multiple stellar orbits
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• The Fifth Candidate for an Intermediate-mass Black Hole in the Galactic Center
• Discovery of Two Small High-Velocity Compact Clouds in the Central 10 Parsecs of Our Galaxy
• Kinematics of Ultra-High-Velocity Gas in the Expanding Molecular Shell adjacent to the W44 Supernova Remnant
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Cited by in corpus (3)

• Discovery of the Tadpole Molecular Cloud near the Galactic Nucleus
• ALMA View of the High-velocity-dispersion Compact Cloud CO 0.02-0.02 at the Galactic Center
• Millimeter-wave CO and SiO Observations toward the Broad-velocity-width Molecular Feature CO 16.134-0.553: a Smith cloud scenario?