SIMBAD references

It has been thought that fast-moving meteor spectra consist of only two excitation temperature regimes: the 5000K main component and another hot component at 10000K. This belief does not always satisfy observed spectra due to the lack of sufficient physical correlation among derived excitation temperatures, observed fluxes, upper energy levels (E_u), and Einstein A coefficients (A_ul) of each spectral emission line. This work tries to correlate them and discovery new excitation temperature regimes in meteor spectra in the visual to near IR wavelength region. We focus on the upper energy levels and Einstein A coefficients of observed spectral emission lines. A model fitting the first positive band of nitrogen (N₂) and total number of SiII under quasi-neutral conditions proved the key to identifying of new components. We have identified two new excitation temperature regions in meteor spectra. One is a Mid component at 8000K for N₂ and another a Jet component above 10000K for SiII. This breakthrough has allowed us to reproduce the meteor spectrum. The spectra of high-speed meteors may consist of more than two excitation temperature regions including the main, Mid, hot, and Jet components.