The Astrophysical Journal · 1980 · 609 citations · 0 references
Natural SciencesAstronomyPhysicsAstrophysicsExtragalactic AstronomyInterstellar MediumAstrophysical Fluid DynamicsInterstellar GasSolar CoronaCoronal Plasma DynamicsGalactic Gas DynamicsHigh-velocity CloudsNeutral Hydrogen Emission
High‑velocity clouds of neutral hydrogen are observed above the Galactic plane, suggesting a dynamic galactic fountain. The paper examines whether these clouds can condense from a hot dynamic corona above the Galactic plane. The authors model cloud trajectories, deduce formation positions, and investigate the dynamics of a hot, cosmic‑abundance corona, integrating hydrodynamics to explain HVC appearance. The model reproduces all observed velocity features of the HVCs. Published in The Astrophysical Journal, March 1980, DOI 10.1086/157776.
view Abstract Citations (707) References (58) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS The galactic fountain of high-velocity clouds. Bregman, J. N. Abstract The paper examines whether high-velocity clouds of neutral hydrogen can condense from a hot dynamic corona above the plane of the Galaxy. A model is developed for the trajectories of clouds which matches all observational velocity features of the HVC. Further, the position for the formation of clouds is deduced, and the dynamics of a hot corona of cosmic abundance are investigated, as well as the condensation of clouds within it. Finally, the hydrodynamics of coronal gas are combined with the appearance of HVC on the sky. Publication: The Astrophysical Journal Pub Date: March 1980 DOI: 10.1086/157776 Bibcode: 1980ApJ...236..577B Keywords: Galactic Rotation; Galactic Structure; Galaxies; Hydrogen Clouds; Milky Way Galaxy; Hydrodynamics; Interstellar Matter; Magnetic Fields; Nebulae; Radial Velocity; Velocity Distribution; Astrophysics full text sources ADS | data products SIMBAD (1)