Astronomers see the "warm" glow of Uranus rings

The almost invisible rings of Uranus have an amazing glow in the images of heat

The almost invisible rings of Uranus have an amazing glow in the images of heat

Using the Very Large Telescope, astronomers they were also able to measure the temperature of Uranus of rings for the first time at 77 Kelvin or -320 degrees Fahrenheit. It is interesting to learn that they were not discovered until 1977. In 2017, the fresh images of the mysterious planet were captured by the Atacama Large Millimeter Array and Very Large Telescope, both in Chile, which highlighted thermal energy, or its lack, in its rings.

This warm glow is giving astronomers a window on the rings, and these have only been seen because they reflect a small light in the visible / optical range and in the near infrared, notes

Saturn can nourish all the glory when it comes to rings, but humble Uranus wants to get into action.

Uranus is among the most distant planets of ours solar systemand as such, it is incredibly difficult to observe with lower and medium range telescopes. But the researchers He said they hope that even better information on the strange Uranian ring will come from the next NASA James Webb Space Telescope, which could collect data on the elemental composition of the epsilon ring. It does not have the standard accumulations of small particles, but it is an alternative composed of rocks the size of ping-pong balls and more enormous. The rings of Jupiter they are made of particles that are about one thousandth of a millimeter in diameter each, while The rings of Neptune they consist almost entirely of dust. Uranus is an incredibly cold world, but its rings are actually a little warmer than you can imagine.

Image of the near infrared of the Uranus ring system taken with the adaptive optics system on the Keck telescope 10 m in July 2004. "The largest, the epsilon ring, ranges from 20 to 100 km wide, while those of Saturn is 100 or tens of thousand of kilometers of width. "They could be objects of busted moons, damaged asteroids and even the materials left from the beginning of the planet, billions of years ago.

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Meanwhile, the search has been accepted The Astrophysical Journaland is available on arXiv.

But we cannot say that we know much about Uranus and its rings.

Both the VLT and ALMA observations were created to explore the temperature structure of the atmosphere of Uranus, with VLT probing shorter wave lengths than ALMA.

The Atacama Large Millimeter / submillimeter Array (ALMA), a global astronomy facility, is a partnership of the European Organization for Astronomical Research in the Southern Hemisphere (ESO), the US National Science Foundation (NSF ) and the National Institutes of Natural Sciences (NINS) of Japan in collaboration with the Republic of Chile.

Leigh Fletcher from the University of Leicester in the UK brought the VLT's comments: "We were amazed to see the rings jump out clearly when we reduced the data for the first time." Apparently, rings around the planets are not so rare, and at least some of the planets in our solar system have them. The work at the University of Leicester was supported by the European Research Council (GIANTCLIMES) in the Horizon 2020 research and innovation program of the European Union (723890).


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