Abstract
view Abstract Citations (97) References (13) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Models for the inner regions of the Galaxy. I. An elliptical streamline model. Peters, W. L., III Abstract A new model is proposed for the inner regions of the Galaxy. This model involves gas flowing along concentric elliptical streamlines such as might be caused by a barlike perturbation in the gravitation field of the inner regions of the Galaxy. It is found that such a model can produce not only the so-called 3 kpc arm and the 135 km per sec arm features, but other high-velocity features as well. This model does not require a highly energetic explosion at the galactic nucleus as does the usual expanding spiral-arm model, because there is no net flow of matter out of the inner regions. This model suggests that the outer spiral-arm density wave might be associated with a barlike density wave in the inner regions of the Galaxy. Publication: The Astrophysical Journal Pub Date: February 1975 DOI: 10.1086/153363 Bibcode: 1975ApJ...195..617P Keywords: Astronomical Models; Galactic Nuclei; Galactic Structure; Gas Flow; Microwave Emission; Milky Way Galaxy; Density Distribution; Elliptical Orbits; Flow Geometry; Gravitational Effects; Line Spectra; Radio Astronomy; Velocity Distribution; Astrophysics full text sources ADS |
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