A test of arm induced star formation in spiral galaxies from near-IR and Hαimaging

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dc.creatorSeigar, M. S.
dc.creatorJames, P. A.
dc.date2000-07-27
dc.date.accessioned2026-07-07T01:54:35Z
dc.date.available2026-07-07T01:54:35Z
dc.descriptionWe have imaged a sample of 20 face-on spiral galaxies in Hαand in the near-IR K-band (2.2 microns), in order to determine the location and strength of star formation with respect to perturbations in the old stellar population. We found that star formation rates are significantly enhanced near K-band arms. If K-band light is dominated by emission from old stars, this shows that density waves trigger star formation. However, no significant correlation was found between the global underlying disk properties of spiral galaxies and their total star formation rates.
dc.description2 pages. To be published in the proceedings of ``Galaxy Disks and Disk Galaxies''
dc.identifierhttps://arxiv.org/abs/astro-ph/0007416
dc.identifierhttp://arxiv.org/abs/astro-ph/0007416
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/1402
dc.subjectAstrophysics
dc.titleA test of arm induced star formation in spiral galaxies from near-IR and Hαimaging
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