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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PublicationSelection in H-alpha prism surveys
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PublicationSelf-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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PublicationSíntesis evolutiva de poblaciones estelares en galaxias espirales.
Not Available
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PublicationSN 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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PublicationSpatial 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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PublicationSpiral 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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PublicationSpiral 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...
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TalkSpirals and rings: how do they form? What are their structure and properties?
I will propose a new theory to explain the formation and properties of rings and spirals in barred galaxies, focusing on a comparison of theoretical results to...
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PublicationStar formation and AGN
We analyze the data from narrow band H-alpha and forbidden O III CCD imaging of a sample of nearby spiral galaxies with active nuclei. The results show that the...