Dynamical Influence of Bars on the Star Formation in Isolated Galaxies

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dc.creatorVerley, S.
dc.creatorCombes, F.
dc.creatorVerdes-Montenegro, L.
dc.creatorBergond, G.
dc.creatorLeon, S.
dc.date2007-12-04
dc.date.accessioned2026-07-07T08:47:15Z
dc.date.available2026-07-07T08:47:15Z
dc.descriptionStar formation depends strongly on both the local environment of galaxies and the internal dynamics of the interstellar medium. To disentangle the two effects, we obtained, in the framework of the AMIGA project, Halpha and Gunn r photometric data for more than 200 spiral galaxies lying in very low-density regions of the local Universe. We characterise the Halpha emission, tracing current star formation, of the 45 largest and least inclined galaxies observed for which we estimate the torques between the gas and the bulk of the optical matter. We subsequently study the Halpha morphological aspect of these isolated spiral galaxies. Using Fourier analysis, we focus on the modes of the spiral arms and also on the strength of the bars, computing the torques between the gas and newly formed stars (Halpha), and the bulk of the optical matter (Gunn r).
dc.description2 pages, proceeding of the poster presented at the Vatican Conf. "Formation and evolution of galaxy disks" held in Rome, 1-5 Oct. 2007
dc.identifierhttps://arxiv.org/abs/0712.0536
dc.identifierhttp://arxiv.org/abs/0712.0536
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/143532
dc.subjectAstrophysics
dc.titleDynamical Influence of Bars on the Star Formation in Isolated Galaxies
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