Bipolar HII regions Produced by Cloud-Cloud Collisions

arXiv:2607.28174 · astro-ph.GA · Submitted 2026-07-30 · Read on arXiv

Theotokis Georgatos, Anthony P. Whitworth, Richard Wünsch, Annie Zavagno

astro-ph.GA

Submitted: 2026-07-30

Comments: 18 pages, 13 figures, 1 table, submitted to MNRAS

License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/

Terminology

• Velocity Dispersion — 10× in this paper · explained in 2 episodes
• Trace — 4× in this paper · explained in 2 episodes
• Abundance — 2× in this paper · explained in 1 episode
• Adam — 1× in this paper · explained in 2 episodes
• Core — 1× in this paper · explained in 2 episodes
• Polycyclic aromatic hydrocarbons (PAHs) — 1× in this paper · explained in 2 episodes

Sources

• Initial Conditions for Star Formation: A Physical Description of the Filamentary ISM
• Star Cluster Formation and Feedback
• Galactic star formation with NIKA2 (GASTON): Filament convergence and its link to star formation

Related papers

• Apparent Stability in Self-Gravitating Turbulence and the Evolution of Molecular Clouds
• Two sets of potential-density basis pairs for the study of radial perturbations in collisionless spherical stellar systems
• Constraining reionization-era Ly alpha escape with JELS-MUSE: a highly complete H alpha-selected sample at z about6.1
• Deriving volume density profiles of filaments from observed surface densities
• Little Red Dots and Supermassive Black Hole Seed Formation in Ultralight Dark Matter Halos
• MEGATRON: how the first stars can create an iron metallicity plateau in the smallest dwarf galaxies