[O-08] Poster presentations by senior high school students

[O08-P39] Exploring the Relationship Between Meteor Altitudes and Emission Line Intensity through Spectral Analysis

*Miki Okumura¹, Seiyu Tanahashi¹, Hitomi Igawa¹ (1.Ichinomiya Highschool)

Keywords:Meteor Altitudes, Emission Line Intensity, Spectral Analysis

Meteor altitudes and emission line intensities have been investigated since September 2022. A monochrome video camera was attached to a diffraction grating sheet, and multiple meteors were observed. The frames of observed meteors with emission lines were clipped as still images, and the pixel distance between each emission line and the zero-magnitude light was measured. In a previous study, pixel distances were converted to wavelengths based on Mg and emission line atoms were identified, but distortion increased as the distance from the Mg emission line increased, resulting in a large error. Therefore, we changed the atom as the basis from Mg to Hg, the comparison source, and identified the atoms by converting pixel distance to wavelength. The intensity of each emission line was measured at each altitude of the meteor. The results were compared for each meteor, and the emission line intensities varied with the difference in meteor altitude.