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Showing 1 to 5 of 5 for “"Barred spiral galaxies"”.
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A Theory for the Bars of Barred Spiral Galaxies
Made available in DSpace on 2014-12-10T23:45:12Z (GMT). No. of bitstreams: 1 7310013.pdf: 3047786 bytes, checksum: ccbc13e00264948033e5a1ea57322d76 (MD5) Previous issue date: 1972
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Dark Matter Halo Concentration and the Evolution of Spiral Structure in N-Body, Barred Spiral Galaxies
… between pitch angle (the tightness of spiral arm structure in the disk), P, and various indicators of central mass concentration, as well as the theoretical relationship between halo mass concentration and the density of visible matter in the central part of the galaxy, we look at a …
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Correcting the rotation curve of spiral galaxies for the non-circular motions induced by a bar
The mass distribution of disk galaxies is usually determined through the use of rotation curves. This determination relies on two key assumptions; that the gas moves on circular orbits and that this motion traces the underlying gravitational potential. In the case of barred spiral galaxies the …
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Development and Resultant Implementation of Custom Software for Analyses of Galactic Neighborhoods
The structure and organization of galaxies and their environments within the universe is a critical and fundamental question in the field of astrophysics. The amount of data available necessitates computer software to aid analyses. Previous research in the field utilized software built in FORTRAN …
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Star formation in the bars of nearby galaxies
… the morphological type. We use a sample of 70 barred spiral galaxies in the nearby universe taken from the Spitzer Survey of Stellar Structure in Galaxies (S⁴G). The data are combined with Hα data from various optical telescopes. (KPNO, JKT, OHP and CTIO) Methods: We overlay …