Tech & Science Planet Or Star? Either Way, This Rogue Object Is Really Weird

04:50  11 august  2018
04:50  11 august  2018 Source:   gizmodo.com.au

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The new observation demonstrated that the weird object actually straddles the boundary between planet and brown dwarf. That’s cool, but even more perplexing is how all five of these objects ended up with their intense magnetic fields.

The new observation demonstrated that the weird object actually straddles the boundary between planet and brown dwarf. It’s bigger than a planet , but it’s not a star , so *SHRUG*” Nice work, guys. Really good.

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Various news outlets have been discussing a strange object in space, which may or may not be a planet. New measurements show that what was thought to be a brown dwarf — essentially a “failed star” that is too small to generate nuclear fusion, but too big to be a planet — might be a planet after all. But that’s far from the strangest part of this story.

Scientists recently took another look at four nearby brown dwarfs, as well as this strange object, which is located only 20 light years from Earth. The new observation demonstrated that the weird object actually straddles the boundary between planet and brown dwarf. That’s cool, but even more perplexing is how all five of these objects ended up with their intense magnetic fields.

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A rogue planet (also termed an interstellar planet , nomad planet , free-floating planet , orphan planet , wandering planet , starless planet , or sunless planet )

Brown dwarfs are mysterious, round objects floating in space that are more than 13 times the mass of Jupiter, meaning they are too large to be considered planets. Scientists recently used the Karl G. Jansky Very Large Array in New Mexico to observe four brown dwarfs, plus the proposed planet-brown dwarf crossover, for seven hours each.

The radio emissions from these objects indicated they could have magnetic field strengths perhaps 200 times greater than Jupiter’s — which is already far stronger than the Earth’s.

“We find that age, mass and temperature together cannot account for the strong magnetic fields produced by our targets,” the scientists led by Arizona State University researcher Melodie Kao write in the paper published in the Astrophysical Journal Supplement Series.

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Planet or Star ? Either Way , This Rogue Object Is Really Weird . A strange 200 million-year-old object with the mass of a planet has been discovered 20 light-years from Earth, outside our solar system.

Planet or Star ? Either Way , This Rogue Object Is Really Weird . Promote. Go to permalink. Various news outlets have been discussing a strange object in space, which may or may not be a planet .

  Planet Or Star? Either Way, This Rogue Object Is Really Weird © Image: Caltech/Chuck Carter; NRAO/AUI/NSF Their observations suggest that these objects could be generating the magnetic fields by spinning rapidly.

The magnetic field observations alone were interesting, but the paper goes into detail about the strange case of that fifth object, SIMP J01365663+0933473, or SIMP0136 for short. The observations suggest that the object might be only 12.7 times the mass of Jupiter, meaning it might be a wandering exoplanet, rather than a brown dwarf.

Astronomers usually use approximately 13 Jupiter masses as the upper cutoff after which a body in space is no longer considered a planet. This new calculation would make the object the first exoplanet detected by radio emissions.

That upper limit of what constitutes a “planet” is controversial, though. An object larger than 13 times the mass of Jupiter is typically massive enough for heavier hydrogen isotopes to undergo nuclear fusion. But recently, one scientist stated that 10 Jupiter masses should be the cutoff point, and others agreed.

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Add your two cents. Rogue planets are a not-too-uncommon occurrence in our Universe. Between finding planets that orbit distant stars to planetary -mass objects that orbit the center of the Milky Way What This Really Means, It's all Here (Videos). Steven Seagal: Russian Foreign Ministry

Weird . Nibiru SHOCK CLAIM: Planet X 'will arrive in May NEXT YEAR and trigger World War 3'. This rogue planet will supposedly herald the end days by wreaking havoc on Earth with its The Nibiru cataclysm is a supposed disastrous encounter between the Earth and a large planetary object .

Their ultimate idea is to instead classify planets and stars based on how they formed: Did they form while orbiting something else (a planet) or on their own from a cloud of dust (a star)?

There are a lot of strange things in our stellar neighbourhood, and brown dwarfs continue to challenge scientists’ definitions of “planet”.

The universe, well, it’s gonna do what it’s gonna do, and it doesn’t really care about our human definitions.

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