Meteor complex of asteroid 3200 Phaethon: its features derived from theory and updated meteor data bases
Authors:
M. Jakubik, L. Neslusan
Image & caption:
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Image caption::
Radiants of Geminid meteor shower (above Ecliptic) and Daytime Sextantids meteor shower in Hammer projection.
blue - meteors (for given shower) selected from video database,
red - meteors selected from photographic database,
black - theoretical meteors (predicted) from simulations
Description:
In this work, we study the meteor complex originating from asteroid 3200 Phaethon. Using a modeling of variety of meteoroid streams and following their dynamical evolution, we confirm the presence of two filaments crossing the Earth observed as Geminid and Daytime Sextantid meteor showers. We use numerical integrations of modeled particles performed for several past perihelion passages of the asteroid considering (i) only the gravity of planets and (2) gravity of planets and the Poynting-Robertson effect. Analyzing the simulated showers and their comparison with observed showers, we determined their probable ages and estimated parameter β, characterizing the influence of radiation pressure, which is responsible for slow spiraling toward the Sun. We successfully simulated real observed Geminids took into account the gravity of planets and an appropriate magnitude of Poynting-Robertson effect. For Daytime Sextantids, we also pointed out discrepancies in comparison between theoretical and observed showers and suggested possible solution: origin of this shower from two sources.
Reference:
Monthly Notices of the Royal Astronomical Society, vol. 453, p. 1186-1200 (2015)
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