Orbit Uranus which is already known for unusual characteristics, they are very crate to the moon, others have tectonic characteristics or lines and a patchwork of rocks. Using the Hubble Space Telescope, scientists closely looked at the surface of the four largest moons of Uranus and made some unexpected discovery.
For the study, a team of astronomers was discovering signs of interaction between the magnetic field of Uranus and its four largest moon: Ariel, Ambriel, Titania and Oberon. All the nominated moon in the name of the characters of William Shakespeare’s works have been closed. This means that one side of the moon, the leading side, is always facing the planet, while the other one, the followed side, always faces away from Uranus. Scientists had long assumed that the leading side would be bright, while the follower side would appear deep. Instead, they found that it is quite opposite, discovering clear evidence for the darkness of the major sides of the external moon.
The findings presented this week at the meeting of the 246th American Astronomical Society held at Encourage, Alaska indicate that the magnetosphere of Uranus cannot interact much with its big moon, despite the previous data otherwise suggestions.
“Uranus is strange, so it has always been uncertain that how much the magnetic field interacts with his satellites,” said Richard Cartright, a researcher at Johns Hopkins University’s Applied Physics Laboratory, a researcher at the Applied Physics Laboratory, and the new study. statement,
The ice veteran company is actually a certified strange. Uranus is tilted 98 degrees, making it the only planet in the solar system, with almost a right angle along the equator. Uranus has about 17 hours on the same day, it takes as much time for the planet to move on its axis. The planet fulfills an orbit around the Sun every 84 Earth. “At the time of Vyzer 2 flyb (in 1986), the magnetosphere of Uranus was tilted by about 59 degrees from the orbital aircraft of satellites,” explained by Cartright. “So, there is an additional inclination to the magnetic field.”
Uranus and its magnetic field lines rotate faster than their moon, making magnetic field lines continuously pass through moon. As a result, scientists believed that particles charged with the magnetic field of the planet, or magnetosphere, should hit the surface of the followers of the moon. Those charged particles accumulate on the followed sides of the moon, scatter radiation and thus they look deep on the side that are far from Uranus.
Using Hubble’s ultraviolet abilities, the scientists behind the study found that the major and followed hemispheres of Ariel and Ambriel are actually very similar in brightness. For Titania and Oberon, it was contrary to what they expected. The major hemispheres of the two external moon were deep and red than their followed hemispheres.
The team of scientists came with an explanation for the strange incident. Uranus irregular moons, smaller distal bodies with eccentric classes, are constantly being hit by micromedarites and some of that material are being removed in the orbit around the planet. In millions of years, this material moves inwards towards the classes of Titania and Oberon.
According to a statement by the Space Telescope Science Institute, as the orbit Uranus of the moonlight, they raise the dust, “killing the windshield of your car,” a lot kills your car windshield. “It can all be build-ups that are seen in deep and red due to Titania and Oberon.” So it supports a different explanation, “the Cartright said.” This is a dust collection. I did not expect to go into that hypothesis, but you know, the data always surprises you. “
For two other moon, aerial and umbil, it may be that the magnetosphere of Uranus interacts with them, but does not happen in a way resulting in a bright and dark side. The recent discovery adds more secrets to Uranus and its system.
