The Quadrantid Meteoroid Stream and Comet 1491I

Details The Quadrantid Meteoroid Stream and Comet 1491I The Quadrantid Meteoroid Stream and Comet 1491I

Oct 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993mnras.264..659w&link_type=abstract

Monthly Notices of the Royal Astronomical Society, Vol. 264, NO. 3/OCT1, P. 659, 1993

Astronomy and Astrophysics

Astronomy

31

Celestial Mechanics, Stellar Dynamics - Comets: Individual: 1491 I - Meteoroids

Scientific paper

Although the Quadrantid meteor shower is one of the major regular showers, producing reliable displays every January, it is almost unique amongst the main showers in still not having an associated parent clearly identified. One of the reasons for this may be that the stream, and presumably the parent, lies in a region of the Solar system where both close interactions with Jupiter and near-resonant motion with Jupiter are possible. This can result in very different evolutionary patterns emerging for two bodies that were originally on very similar orbits. Thus the parent may no longer be moving within the boundaries of the observed stream.
Two suggestions as possible parents are Comet Machholz and Comet 1491 I. In this paper it is shown that Comet 1491 I could have moved on to an orbit with larger semimajor axis after a close encounter with Jupiter, so that it can no longer be observed from Earth. We also discuss the relationship between Comet 1491 I and the stream. We investigate the orbital evolution of the comet, and a set of test particles ejected from it, over a period of 5000 yr. We compare the resultant model stream with the actual Quadrantid stream as described by Wu & Williams from a study of 118 real meteors. We conclude that Comet 1491 I may have contributed to the current observed stream.

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