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Table 9

Intrinsic latitude widths of various Galactic components.

Component Width

OB stars (Wood & Churchwell 1989).........
Dense CS clouds (Bronfman et al. 2000)......
Free-free via RRLs ().........
Free-free from FastMEM.........
CO.........
Dust – FIR (100 μm).........
Planck 353, 545, 857 GHz.........
Gamma-rays (representative of total matter)...
Synchrotron, GHz frequencies......
Synchrotron, K-band polarization......
Neutral hydrogen.........

Notes. The widths are the mean values in the longitude range l = 330°–340°, l = 20°–30°, and l = 30°–40°. Values in the 320°–330° range are a factor of ~1.35 ± 0.05 greater.

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