Associations Between Asteroids and Meteoroid Streams |
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| Authors: | V Porub?an IP Williams L Korno? |
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| Institution: | (1) Comenius University, 84228 Bratislava, Slovakia;(2) Queen Mary, University of London, E1 4NS, UK |
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| Abstract: | The recent systematic monitoring of the skies has led to the discovery of an increasingly large number of objects on Earth
approaching orbits. Not surprisingly, an increasing number of this population have also been associated with meteoroid streams
in the literature. We will review the history of this topic. We have also conducted our own search for asteroids moving on
orbits that are similar to the orbits of known fireball streams. As NEOs are moving in prograde orbits with low geocentric
velocities, any potential streams will have large radiant areas and in consequence, may have been identified as several "sub-streams".
This greatly hampers both their detection and their recognition as single meteoroid streams. With the large number of Near
Earth Asteroids detected, the probability of two orbits being similar at the present time by coincidence is high. We have
therefore also investigated the evolution of the orbits and only include as real asteroid-stream pairs those where the evolution
is also similar over 5000 years. We have identified nine pairs, including the well known pair of the Geminid meteoroid stream
and asteroid 3200 Phaethon. Currently there are a number of papers being published on the pairing of asteroid 2003 EH1 and
the Quadrantid meteoroid stream. Because of the newness of the research and the fact that this is a high inclination pair,
we have excluded this pair from our discussions. |
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| Keywords: | Asteroid Meteoroid streams |
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