Analysis of Selected Runaway Stars in the Orion Nebula Based on Data
  from the Gaia EDR3 Catalogue
  We have performed Monte Carlo simulations of the trajectories of several
runaway stars using their parallaxes and proper motions from the Gaia EDR3
catalogue. We have confirmed the hypothesis that the stars AE Aur and $\mu$Col
are a product of the multiple system breakup $\sim$2.5 Myr ago and the Orion
Trapezium may be the parent cluster for this pair of stars. We show that the
data from the Gaia EDR3 catalogue for the star $\iota$Ori, mainly the parallax,
do not allow us to talk about the breakup of the multiple system of AE Aur,
$\mu$Col, and $\iota$Ori. The existence of close pair encounters between the
stars HD 30112 and HD 43112 $\sim$1 Myr ago has been confirmed. Close triple
encounters confirm the hypothesis that the stars HD 30112 and HD 43112 escaped
from the parent cluster Col 69. We show that the stars HIP 28133 and TYC
5368-1541-1 have a nonzero probability of escape from the region within 10 pc
of the center of the Orion Trapezium cluster and a fairly high probability
(about 8\%) that they were both at distances less than 20 pc from the center of
the Orion Trapezium $\sim$2.5 Myr ago. It has been established for the first
time that the stars Gaia EDR3 3021115184676332288 and Gaia EDR3
2983790269606043648 have a probability of about 0.5\% that they broke up as a
binary system $\sim$1.1 Myr ago. The star Gaia EDR3 3021115184676332288 has a
probability of about 16\% that it escaped from the region within 10 pc of the
center of the Orion Trapezium cluster $\sim$1 Myr ago.
