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 (HVDCCs), which are a category of peculiar molecular clouds found in the central molecular zone of our Galaxy. A list of HVDCCs 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 pointlike massive objects, local energetic events, or cloud-to-cloud collisions.
- Publication:
-
The Astrophysical Journal Supplement Series
- Pub Date:
- August 2022
- DOI:
- 10.3847/1538-4365/ac6bfc
- arXiv:
- arXiv:2209.12395
- Bibcode:
- 2022ApJS..261...13O
- Keywords:
-
- Galactic center;
- molecular cloud;
- 565;
- Astrophysics - Astrophysics of Galaxies
- E-Print:
- 68 pages, 53 figures, 5 tables