The heating and ablating rates of asteroidal meteoroids are calculated at their stagnation point assuming the meteoroids to be spherical in shape. The flow around a meteoroid is assumed to be inviscid and thermc-chemically in equilibrium. Radiation intensity is calculated line-by-line. The calculated heating/ablation rates decrease with nose radii, peak at altitudes between 30 and 40 km, and not always increase with flight velocity. Heating rate can be as high as 230 kW/cm~2 and ablation rate can be as high as 250 kg/(m~2-s). They can be higher or lower than the values calculated using the Rosseland approximation, and do not asymptotically approach the Rosseland values at high densities. The magnitude of the heating/ablating rates is determined mostly by the weak radiation mechanisms.
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机译：假设流星体为球形，则在其停滞点计算小行星流星体的加热和消融速率。假定流星体周围的流动是不粘稠的，且热化学化学平衡。辐射强度是逐行计算的。计算得出的加热/消融速率会随着机头半径的增加而降低，在30至40 km的高度处达到峰值，而并不总是随飞行速度而增加。加热速率可以高达230 kW / cm〜2，消融速率可以高达250 kg /（m〜2-s）。它们可以高于或低于使用Rosseland近似计算得出的值，并且在高密度下不会渐近地接近Rosseland值。加热/烧蚀速率的大小主要由弱辐射机制决定。
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