========================================================================== J/ApJS/171/419 Catalog of LMC HI clouds (Kim+, 2007) The following files can be converted to FITS (extension .fit or fit.gz) table[123].dat ========================================================================== Query from: http://vizier.cds.unistra.fr/viz-bin/VizieR?-source=J/ApJS/171/419 ==========================================================================
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Beginning of ReadMe : J/ApJS/171/419 Catalog of LMC HI clouds (Kim+, 2007) ================================================================================ A catalog of H I clouds in the Large Magellanic Cloud. Kim S., Rosolowsky E., Lee Y., Kim Y., Jung Y.-C., Dopita M.A., Elmegreen B.G., Freeman K.C., Sault R.J., Kesteven M., McConnell D., Chu Y.-H. <Astrophys. J. Suppl. Ser., 171, 419-446 (2007)> =2007ApJS..171..419K ================================================================================ ADC_Keywords: Radio sources ; Magellanic Clouds ; H I data Keywords: galaxies: individual (Large Magellanic Clouds) - galaxies: ISM - Magellanic Clouds - radio lines: galaxies 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.toR^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. Description: We cataloged the data from the combined surveys Kim et al., (2003ApJS..148..473K) of the Australia Telescope Compact Array (ATCA; Kim et al., 1998ApJ...503..674K) and the Parkes 64m single-dish telescope (Staveley-Smith et al., 2003MNRAS.339...87S). The spatial resolution of the map is 50"-55", corresponding to a physical resolution of 12-14pc at the distance of the LMC (Alves, 2004NewAR..48..659A). The observing band was centered on 1.419GHz.