Abstract

view Abstract Citations (54) References (19) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS On the Formation and Structure of Galactic Halos Hoffman, Yehuda Abstract The author studies analytically the formation and structure of galaxies and clusters, which emerge from a primordial Gaussian perturbation (δ) field via gravitational instability. These bound objects are assumed to be seeded by local maxima of the δ-field. The density profile of these objects is found to depend on (1) the power spectrum of the δ-field, (2) the height of the peaks relative to the rms value of δ, and (3) the value of Ω0. In the cold dark matter case, flat or slightly increasing rotation curves are expected for all acceptable values of Ω0 and H0. Publication: The Astrophysical Journal Pub Date: May 1988 DOI: 10.1086/166307 Bibcode: 1988ApJ...328..489H Keywords: Dark Matter; Galactic Clusters; Galactic Evolution; Galactic Structure; Gravitational Collapse; Halos; Computational Astrophysics; Cosmology; Perturbation Theory; Power Spectra; Astrophysics; GALAXIES: CLUSTERING; GALAXIES: FORMATION; GALAXIES: INTERNAL MOTIONS; GALAXIES: STRUCTURE full text sources ADS |

Keywords

PhysicsGalactic haloGalactic coronaHaloAstrophysicsAstronomyGalactic tideGalaxy formation and evolutionGalaxy

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Year
1988
Type
article
Volume
328
Pages
489-489
Citations
25
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Yehuda Hoffman (1988). On the formation and structure of galactic halos. The Astrophysical Journal , 328 , 489-489. https://doi.org/10.1086/166307

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DOI
10.1086/166307