TITLE:
On the relatioship between comet 2P/Encke and Taurid complex

AUTHOR:
D. Tomko

ABSTRACT:
We study the meteor complex of the short-period comet 2P/Encke. This
comet was suggested as the parent body of the Taurid complex.
For five perihelion passages of the parent comet in the past, we model
associated theoretical stream. In more detail, each of our models
corresponds to a part of the stream, which is characterized with a single
value of the evolutionary time and a single value of the strength of
Poynting-Robertson effect. In each model, we follow the dynamical
evolution of 10 000 test particles via a numerical integration.
The integration is performed from the time for which the set of test
particles was assumed to be ejected from the comet's nucleus up to the
present. At the end of the integration, we analyze the mean orbital
characteristics of those particles that approach the Earth's orbit and,
thus, create a shower or showers. The predicted showers are then
compared with their observed counterparts separated from one
photographic, three video, and one radio-meteor databases, if the
observed showers are actually found in the data.

The modeled stream of 2P approaches the Earth's orbit in several
filaments with the radiant areas grouped in four cardinal directions of
ecliptical showers. These groups of radiant areas are situated
symmetrically in respect to the apex of the Earth's motion around the
Sun. We also attempted to identify all the predicted showers to those in
the databases of real meteors and IAU MDC list of all showers. Our
analysis resulted in 1, 2, 8, and 10 showers, related to the meteoroid
complex originally released from the nucleus of 2P, in the northern
helion, southern helion, northern anti-helion, and southern anti-helion
directions, respectively.