Astrofísicas: Galaxias espirales

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    Satellite galaxies as probes of the gravitational potentials of large spirals
    An aspect of the missing mass problem in galaxies, not easy to address, is whether the dynamical mass distribution is spherical or greatly flattened, following...
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    Scale-length determinations of exponential discs of spiral galaxies - A comparison
    In the present comparative study of published values for the scale lengths of spiral galaxies' exponential disks, the average value of the discrepancy for more...
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    Selection in H-alpha prism surveys
    The authors analyze a set of optically faint emission-line galaxies discovered as strong Hα emitters in an objective prism survey (Wamsteker et al, 1985). This...
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    Self-sustaining galactic winds in spiral galaxies with starburst nuclei
    In the circumnuclear zones of the disks of some spirals there is an absence of neutral interstellar hydrogen. A model is devised in which gaseous outflow is...
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    Síntesis evolutiva de poblaciones estelares en galaxias espirales.
    Not Available
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    SN 1988A in M58 - A type II-P supernova with a high late-time luminosity
    SN 1988A is (with exception of the well-observed SN 1987A) the only type II SN for which observations of the late tail of the light curve are presently...
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    Spatial and luminosity distributions of the ionized hydrogen in NGC 3992
    From H-alpha CCD observations taken with the 4.2 m William Herschel Telescope a catalog of 394 HII regions of the spiral NGC 3992 has been compiled. The...
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    Spiral Galaxies: Requirements for accurate Photometric Bulge/Disk Decomposition
    Selected photometric bands, spatial resolution, disk dimension in the frame and the scanned sky background level are determined in order to establish galactic...
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    Spiral modes in galaxies.
    Via Fourier analysis, applied to broad-band images of a sample of spiral galaxies, the relative contribution of each spiral mode to the spiral arms, as a...