Disk corrugations in IC 2233 Virtual Observatory Resource

Authors
  1. Matthews L.D.
  2. Uson J.M.
  3. Published by
    CDS
Abstract

We recently reported the discovery of a regular corrugation pattern in the HI disk of the isolated, edge-on spiral galaxy IC 2233. Here we present measurements of the vertical structure of this galaxy at several additional wavelengths, ranging from the far-ultraviolet to the far-infrared. We find that undular patterns with amplitude <~5"(<~250pc) are visible in a variety of Population I tracers in IC 2233, including the young to intermediate-age stars, the HII regions, and the dust. However, the vertical excursions become less pronounced in the older stellar populations traced by the mid-infrared light. This suggests that the process leading to the vertical displacements may be linked with the regulation of star formation in the galaxy. We have also identified a relationship between the locations of the density corrugations and small-amplitude (<~5km/s) velocity undulations in the HI rotation curve. We are able to exclude several possible mechanisms for the origin of the observed corrugations, including tidal interaction from a companion, Parker instabilities, or a galactic bore. Global gravitational instabilities appear to be the most likely explanation, although local perturbations may also be important.

Keywords
  1. galaxies
  2. infrared-sources
  3. ultraviolet-astronomy
  4. h-i-line-emission
  5. interstellar-medium
Bibliographic source Bibcode
2008ApJ...688..237M
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/688/237
IVOA Identifier IVOID
ivo://CDS.VizieR/J/ApJ/688/237
Document Object Identifer DOI
doi:10.26093/cds/vizier.16880237

Access

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http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/688/237
https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/688/237
http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/688/237
IVOA Table Access TAP
http://tapvizier.cds.unistra.fr/TAPVizieR/tap
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History

2011-01-25T14:44:58Z
Resource record created
2011-01-25T14:44:58Z
Created
2017-07-06T06:26:02Z
Updated

Contact

Name
CDS support team
Postal Address
CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France
E-Mail
cds-question@unistra.fr