Electromagnetically accelerating comets/asteroids

The mysterious Oumuamua, the comet/asteroid/comet that astronomy suggests is a visitor to our solar system, has been calculated as accelerating away from us and the Sun.

Science theory suggests it has to be by gases emitted from its surface due to sublimation, although magnetic acceleration as a possible option was considered.

Could Oumuamua be accelerating due to electromagnetic forces, perhaps something similar to our stars solar wind or particles in CERN? If it is from outside our stars plasma sphere then it could have a different electric potential and charge to the local plasma environment.

A mysterious space rock, first spotted in 2017, bewildered astronomers — was it an icy comet, a rocky asteroid, or something entirely new? As the object, called ‘Oumuamua, hurtles away from us, the mystery may be solved: it’s accelerating like a comet...

Or, maybe, the comet was magnetized, and was getting a push from the solar wind’s magnetic field...
The interstellar space rock that mystified astronomers is actually a comet | The Verge

Accelerating comets and asteroids

The motion of all celestial bodies is governed mostly by gravity, but the trajectories of comets can also be affected by non-gravitational forces due to cometary outgassing. Because non-gravitational accelerations are at least three to four orders of magnitude weaker than gravitational acceleration, the detection of any deviation from a purely gravity-driven trajectory requires high-quality astrometry over a long arc...

After ruling out solar-radiation pressure, drag- and friction-like forces, interaction with solar wind for a highly magnetized object... we find comet-like outgassing to be a physically viable explanation, provided that ‘Oumuamua has thermal properties similar to comets.
Non-gravitational acceleration in the trajectory of 1I/2017 U1 (‘Oumuamua)

The gravitational attraction between two electrons is only 8.22*10−37 of the electrostatic force of repulsion at the same separation. However, gravitation usually is concerned with large masses, while any large collection of charges will quickly neutralize.

Another difference between the two forces is the fact that gravitation only attracts, while electrical forces attract when the electrical charges are opposite and repel if the charges are similar.
Similarity Between Gravitation and Electrostatic Forces

As the space rock careened away from the Sun — and us — a research team led by Marco Micheli, an astronomer at the European Space Agency center that studies near-Earth Objects, tracked it. They discovered that ‘Oumuamua was accelerating, and interactions with gravity from the Moon, the Sun, and nearby planets weren’t enough to explain it. “There was something else that was pushing ‘Oumuamua out from the sun, so it was moving faster than it should be just due to gravity alone,” Fitzsimmons says.
The interstellar space rock that mystified astronomers is actually a comet | The Verge

A comet in asteroid clothing

Science has vehemently pronounced that asteroids and comets are very different space bodies. But more and more evidence shows them to be very similar rocky, dusty objects. Even when bouncing off a dirty snowball with images of towering cliffs, boulder fields and debris. Electric Universe theory has stated that they are variations of each other.

Oumuamua (1I/2017 U1) is the first known object of interstellar origin to have entered the Solar System on an unbound and hyperbolic trajectory with respect to the Sun. Various physical observations collected during its visit to the Solar System showed that it has an unusually elongated shape and a tumbling rotation state and that the physical properties of its surface resemble those of cometary nuclei even though it showed no evidence of cometary activity
Non-gravitational acceleration in the trajectory of 1I/2017 U1 (‘Oumuamua)

There’s debate over ‘Oumuamua’s identity because it’s not quite like anything we’ve seen before in our Solar System. Astronomers expected that the first space rock to visit us from outside our Solar System would be a ball of ice and rocks: a comet. After all, our planetary system flung icy objects into interstellar space when it was forming. Wouldn’t others, too? But there’s usually a cloud of dust and gas surrounding comets, and ‘Oumuamua didn’t appear to have one — which could mean it was made mostly out of rock and metal, like an asteroid.

In December, researchers led by Alan Fitzsimmons, an astronomer at Queen’s University Belfast, suggested ‘Oumuamua was indeed comet-like, it was just coated in a thick layer of carbon-rich grime that insulated the space rock’s icy heart. The rock’s exit from our neighborhood has settled most astronomers’ minds. It’s a comet, just an unusual one.
The interstellar space rock that mystified astronomers is actually a comet | The Verge