Broadband Imaging to Study the Spectral Distribution of Meteor Radio Afterglows

We present observations of 86 meteor radio afterglows (MRAs) using the new broadband imager at Long Wavelength Array Sevilleta (LWA-SV) station. The MRAs were detected all-sky images with a bandwidth up to 20 MHz. fit spectra both power law and log-normal function. When law, varied from flat steep derived spectral index distribution peaked -1.73. function, exhibits turnovers frequencies between 30-40 MHz, appear be better functional spectra. compared parameters two fitting methods physical properties MRAs. observe weak correlation turnover frequency altitude indices do not show any strong correlations However, full width half maximum (FWHM) duration is correlated local time, incidence angle, luminosity optically kinetic energy parent meteoroid. Also, average seems meteoroid which they occur.