TV spectroscopy of persistent trains during 2001 Leonid meteor storm over Japan

Persistent meteor trains are luminous clouds formed by meteors which persist long after the disappearance of the meteor itself. The strong activities of Leonid meteor shower during 1998 and 2002 brought some new explanations for persistent trains. However, luminous and dynamical mechanisms of these long-lived trains have still been in controversy. The spectacular 2001 Leonid meteor storm was observed with the maximum ZHR of 3730 at 18:16 (UT) on November 18 from East-Asia and Oceania regions. Observations were carried out using two co-aligned GEN II image intensifiers in spectral range of 380-900 nm; one camera for spectroscopy had an objective grating, 150 grooves/mm and blazed wavelength of 575.0 nm, while the other was used for no-filtered imaging. These detectors were fitted with 85 mm F/1.2 lenses. 5 excellent persistent spectra and its images were recorded from few seconds after the fireballs. For one train we also obtained a UV high definition TV spectrum in the wavelength of 300-600 nm. Fortunately, MEteor TRain Observation campaign (METRO) of Japan provided triangulation train images which made it possible to measure the altitude of these phenomena. Here we present persistent trains spectra of atomic dominated (-30sec) and continuum phase (30-sec) which obtained by low resolution and wide range of high sensitive TV spectroscopy.