Meteor showers associated with 2003EH1

Details Meteor showers associated with 2003EH1 Meteor showers associated with 2003EH1

Jun 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008mnras.386.2271b&link_type=abstract

Monthly Notices of the Royal Astronomical Society, Volume 386, Issue 4, pp. 2271-2277.

Astronomy and Astrophysics

Astronomy

6

Methods: Numerical, Celestial Mechanics, Meteors, Meteoroids, Minor Planets, Asteroids

Scientific paper

Using the Everhart RADAU19 numerical integration method, the orbital evolution of the near-Earth asteroid 2003EH1 is investigated. This asteroid belongs to the Amor group and is moving on a comet-like orbit. The integrations are performed over one cycle of variation of the perihelion argument ω. Over such a cycle, the orbit intersect that of the Earth at eight different values of ω. The orbital parameters are different at each of these intersections and so a meteoroid stream surrounding such an orbit can produce eight different meteor showers, one at each crossing. The geocentric radiants and velocities of the eight theoretical meteor showers associated with these crossing points are determined. Using published data, observed meteor showers are identified with each of the theoretically predicted showers. The character of the orbit and the existence of observed meteor showers associated with 2003EH1 confirm the supposition that this object is an extinct comet.

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