Gas accretion onto the Milky Way: high-velocity cloud survival and the revival of the terminal-velocity paradigm

arXiv:2607.20394 · astro-ph.GA, astro-ph.HE · Submitted 2026-07-22 · Read on arXiv

Michael M. Schulreich, Dieter Breitschwerdt, Jürgen Kerp

astro-ph.GA, astro-ph.HE

Submitted: 2026-07-22

Comments: 32 pages, 15 figures, 1 table, accepted for publication in MNRAS

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

Terminology

• Trace — 11× in this paper · explained in 2 episodes
• Metallicity — 10× in this paper · explained in 3 episodes
• Velocity Dispersion — 8× in this paper · explained in 2 episodes
• Abundance — 6× in this paper · explained in 1 episode
• Ablation — 5× in this paper · explained in 1 episode
• Core — 3× in this paper · explained in 2 episodes
• Activation Function — 2× in this paper · explained in 1 episode
• Dynamical regimes — 2× in this paper · explained in 2 episodes
• Accretion Efficiency — 1× in this paper · explained in 2 episodes
• Accuracy — 1× in this paper · explained in 1 episode
• Adaptive Mesh Refinement — 1× in this paper
• Adiabatic Evolution — 1× in this paper · explained in 2 episodes
• Alignment — 1× in this paper · explained in 1 episode
• Anisotropy — 1× in this paper · explained in 3 episodes
• Calibration — 1× in this paper · explained in 7 episodes
• Clustering — 1× in this paper · explained in 2 episodes
• Local Standard of Rest — 1× in this paper
• Momentum transfer — 1× in this paper · explained in 2 episodes
• Robustness — 1× in this paper · explained in 5 episodes
• Stellar Feedback — 1× in this paper · explained in 2 episodes

Sources

• Gas Accretion via Condensation and Fountains
• The 3D Structure and Kinematics of the Local Disk-Halo Interface: Intermediate-velocity Clouds are the Minority of High-altitude Clouds in the Solar Neighborhood
• Gas Accretion onto the Milky Way

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