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2011MNRAS.410.1237U - Mon. Not. R. Astron. Soc., 410, 1237-1250 (2011/January-2)
The red MSX source survey: distribution and properties of a sample of massive young stars.
URQUHART J.S., MOORE T.J.T., HOARE M.G., LUMSDEN S.L., OUDMAIJER R.D., RATHBORNE J.M., MOTTRAM J.C., DAVIES B. and STEAD J.J.
Abstract (from CDS):
Comparing the properties of the sample of young massive stars with the general population, we find the RMS clouds are generally larger, more massive, and more turbulent. We examine the distribution of this subsample with respect to the location of the spiral arms and the Galactic bar and find them to be spatially correlated. We identify three significant peaks in the source surface density at Galactocentric radii of approximately 4, 6 and 8 kpc, which correspond to the proposed positions of the Scutum, Sagittarius and Perseus spiral arms, respectively. Fitting a scaleheight to the data we obtain an average value of ∼ 29±0.5 pc, which agrees well with other reported values in the literature, however we note a dependence of the scaleheight on galactocentric radius with it increases from 30 to 45 pc between 2.5 and 8.5 kpc.
Abstract Copyright: 2010 CSIRO. Journal compilation2010 RAS
Journal keyword(s): stars: early-type - stars: formation - ISM: clouds - Galaxy: kinematics and dynamics
VizieR on-line data: <Available at CDS (J/MNRAS/410/1237): table1.dat table2.dat table3.dat>
Status at CDS : All or part of tables of objects could be ingested in SIMBAD with priority 2.
Simbad objects: 35
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