Evidence for transverse spread in Leonid meteors

Astronomy and Astrophysics – Astronomy

Scientific paper

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Meteors, Meteoroids

Scientific paper

We report here evidence for significant transverse spread of the light production region in bright Leonid meteors. One Leonid meteor has an apparent spread in the light production region of about 600m perpendicular to the flight path for the meteor, that transverse spread persisting for at least 0.3s. We have also detected short-duration, jet-like features emanating from a bright Leonid meteor recorded in 1998. These jet-like features have maximum spatial dimensions up to 1.9km. While we cannot definitively rule out instrumental artefacts as a cause for these jet-like features, they may be evidence of motion contributing to the observed spatial spread in the light production region.

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