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APPROXIMATE EXPRESSION FOR ESCAPE PROBABILITY IN A CYLINDRICALLY EXPANDING MEDIUM
Lan Ke, Zhang Yuquan
CHINESE JOURNAL OF COMPUTATIONAL PHYSICS
1995, 12 (3):
401-406.
An approximate expression for escape probability for Doppler Profile lines in a cylindrically expanding medium is obtained in this paper. The complicated quintuple integral griving escape probability is approximated by a simple integral which has a Gauss-shaped integrand. The largest error is no more than 7%.
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