/ftp/cats/aliases/K/./KJD2006



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J/ApJ/646/1009   Strucutures of dust in Perseus molecular cloud    (Kirk+, 2006)
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	table1.dat table2.dat table3.dat
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Beginning of ReadMe : J/ApJ/646/1009 Structures of dust in Perseus molecular cloud (Kirk+, 2006) ================================================================================ The large- and small-scale structures of dust in the star-forming Perseus molecular cloud. Kirk H., Johnstone D., Di Francesco J. <Astrophys. J., 646, 1009-1023 (2006)> =2006ApJ...646.1009K ================================================================================ ADC_Keywords: Molecular clouds ; Millimetric/submm sources Keywords: ISM: clouds - stars: formation Abstract: We present an analysis of 3.5deg^2^ of submillimeter continuum and extinction data of the Perseus molecular cloud. We identify 58 clumps in the submillimeter map, and we identify 39 structures (cores) and 11 associations of structures (super cores) in the extinction map. The cumulative mass distributions of the submillimeter clumps and extinction cores have steep slopes (alpha 2 and 1.5-2, respectively), steeper than the Salpeter initial mass function (IMF; alpha=1.35), while the distribution of extinction super cores has a shallow slope (alpha 1). Most of the submillimeter clumps are well fit by stable Bonnor-Ebert spheres with 10K<T<19K and 5.5<log_10_(Pext/k)<0.6. The clumps are found only in the highest column density regions (AV>5-7mag), although Bonnor-Ebert models suggest that we should have been able to detect them at lower column densities if they exist. Description: Submillimeter data at 850um of the Perseus molecular cloud were obtained using the Submillimeter Common User Bolometer Array (SCUBA) on the James Clerk Maxwell Telescope (JCMT) on Mauna Kea.4 The data we present here are a combination of our own observations ( 1.3deg^2^) with publicly available archival data for a total of 3.5deg^2^.