[Simulation of UV spectra from the wake of a stony meteor in the upper atmosphere].
For stony meteors thrusting through a region with an altitude between 100-90 km in the upper atmosphere at different initial geocentric velocities, the effective temperatures are calculated based on Sparrow's particle-collision theory. Assuming different mixture ratios, particle number densities of certain dominant components that might exist in the wake of a stony meteor at a velocity of 72 km x s(-1) are given. Using a large-scale spectral synthesis code called Cloudy, UV radiation within the 240-400 nm band of the wake of such a meteor is simulated, and relative intensities of several expected strong emission lines are predicted. Comparison shows that our prediction of the spectrum of a meteor wake, which has an effective temperature of 5 680 K and a fractional vapor pressure of 0.1 Pa, is fairly close to the observational results.
Zhang
Da-wei
DW
State Key Laboratory of Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics, Changchun 130033, China.
Chen
Bo
B