The parent of the Quadrantid meteoroid stream and asteroid 2003 EH1

Details The parent of the Quadrantid meteoroid stream and asteroid 2003 EH1 The parent of the Quadrantid meteoroid stream and asteroid 2003 EH1

Dec 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004mnras.355.1171w&link_type=abstract

Monthly Notices of the Royal Astronomical Society, Volume 355, Issue 5, pp. 1171-1181.

Astronomy and Astrophysics

Astronomy

31

Methods: Numerical, Methods: Statistical, Celestial Mechanics, Comets: General, Meteors, Meteoroids, Minor Planets, Asteroids

Scientific paper

The Quadrantid meteor shower is a very regular and prolific meteor shower. As such, one might expect that its parent would be easily recognizable. This is not the case, and numerous comets have been suggested as potential parents. We summarize the situation to date. Recently, an asteroid given the temporary designation 2003 EH1 has been discovered on an orbit that is so similar to that of the Quadrantids that some association between them is probable. The orbit still has some uncertainties and these, together with an orbit that can make fairly close approaches to many planets, make studying its orbital evolution difficult. We have generated, using a statistical model, 500 clones for this body and integrated the motion of these clones back in time for 1000 yr. We find that around AD 1500 the orbit of asteroid 2003 EH1 was very similar to the orbit of the Quadrantids at that date. Further, in 1491, the orbits of a few of these clones were very similar to the orbit of C/1490 Y1 and their sky position also roughly matched that of the comet. Various possibilities are discussed.

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