Catalog of LMC HI clouds Virtual Observatory Resource

Authors
  1. Kim S.
  2. Rosolowsky E.
  3. Lee Y.
  4. Kim Y.
  5. Jung Y.-C.
  6. Dopita M.A.,Elmegreen B.G.
  7. Freeman K.C.
  8. Sault R.J.
  9. Kesteven M.
  10. McConnell D.,Chu Y.-H.
  11. Published by
    CDS
Abstract

21cm neutral hydrogen interferometric survey of the Large Magellanic Cloud (LMC) combined with the Parkes multibeam HI single-dish survey (2003MNRAS.339...87S) clearly shows that the HI gas is distributed in the form of clumps or clouds. The HI clouds and clumps have been identified using a thresholding method with three separate brightness temperature thresholds (T_b_). Each catalog of HI cloud candidates shows a power-law relationship between the sizes and the velocity dispersions of the clouds roughly following the Larson law scaling {sigma}_v_{prop.to}R^0.5^, with steeper indices associated with dynamically hot regions. The clouds in each catalog have roughly constant virial parameters as a function of mass, suggesting that the clouds are all in roughly the same dynamical state, but the values of the virial parameter are significantly larger than unity, showing that turbulent motions dominate gravity in these clouds. The mass distribution of the clouds is a power law with differential indices between -1.6 and -2.0 for the three catalogs. In contrast, the distribution of mean surface densities is a lognormal distribution.

Keywords
  1. radio-sources
  2. magellanic-clouds
  3. h-i-line-emission
Bibliographic source Bibcode
2007ApJS..171..419K
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/171/419
IVOA Identifier IVOID
ivo://CDS.VizieR/J/ApJS/171/419
Document Object Identifer DOI
doi:10.26093/cds/vizier.21710419

Access

Web browser access HTML
http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/171/419
https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/171/419
http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/171/419
IVOA Table Access TAP
http://tapvizier.cds.unistra.fr/TAPVizieR/tap
Run SQL-like queries with TAP-enabled clients (e.g., TOPCAT).
IVOA Cone Search SCS
For use with a cone search client (e.g., TOPCAT).
http://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/171/419/KRL2007?
https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/171/419/KRL2007?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/171/419/KRL2007?

History

2009-06-16T17:41:37Z
Resource record created
2009-06-16T17:41:37Z
Created
2017-06-19T07:57:40Z
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