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Home All issues Volume 583 (November 2015) A&A, 583 (2015) A107 Full HTML
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Table 9

Critical static magnetic field and pressure terms.

B S,crit R H b P star c P r Turbulent pressured Thermal pressure Total internal pressuree
Positiona cold warm cold warm cold warm cold warm
[μG] [μG] [pc] [K cm-3] [K cm-3] [K cm-3] [K cm-3] [K cm-3] [K cm-3] [K cm-3] [K cm-3]
HCN-peak 993 314 1.06 1.0 × 107 9.1 × 106 1.1 × 107 3.3 × 108 1.3 × 106 1.3 × 108 2.1 × 107 4.7 × 108
CO-peak 789 395 0.91 1.4 × 107 9.1 × 106 2.1 × 107 1.6 × 108 5.7 × 106 1.2 × 108 3.6 × 107 2.9 × 108
PDR 1114 498 1.34 6.5 × 106 9.1 × 106 5.8 × 107 1.8 × 108 1.2 × 107 6.9 × 107 7.9 × 107 2.6 × 108
M17-W 1250 993 1.58 4.6 × 106 2.5 × 106 9.4 × 106 4.7 × 108 7.6 × 105 5.0 × 107 1.3 × 107 5.2 × 108

Notes.

(a)

Selected positions are in 25′′ beams.

(b)

Sky projected distance of the selected positions from the cluster of ionizing stars at about offset position (+35″, +75″).

(c)

To obtain the pressure terms in units of energy density erg cm-3 you must multiply them by the Boltzmann’s constant.

(d)

The turbulent pressure is calculated from the CO line width corrected for thermal broadening of the CO molecule.

(e)

The total internal pressure is the sum of the internal radiation pressure Pr, the turbulent pressure PNT, and the thermal pressure Pth.

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