'Rogue' extrasolar planetary-mass object detected

Brown dwarf or massive exoplanet detected with powerful magnetic field

Brown dwarf or massive exoplanet detected with powerful magnetic field

Its young age meant that it was in fact so much less massive that it could be a free-floating planet - only 12.7 times more massive than Jupiter, with a radius 1.22 times that of Jupiter. They are originally formed inside a star system but somehow escaped.

It's very large, and has an extremely strong magnetic field, and it's a "rogue", not attached to any other object.

Artist's conception of SIMP J01365663 0933473, an object with 12.7 times the mass of Jupiter, but a magnetic field 200 times more powerful than Jupiter's.

"This object is right at the boundary between a planet and a brown dwarf, or "failed star", and is giving us some surprises", Dr Melodie Kao and astronomer at Arizona State University told The Independent. But since then, as our technology progressed, astronomers found that these stars also exhibit signs of magnetic activity, including the formation of powerful auroras - which on Earth are created by solar wind particles interacting with the planet's magnetic field. How auroras are caused in brown dwarfs is still unclear, notes the report.

On Earth, auroras are generated by interactions between its magnetic field and solar winds. This finding is the first radio telescope finding of an object the mass of a planet found outside the Solar System. The latest data reveals it's younger than first thought at a relatively youthful 200 million years old, and its mass is smaller, so it could be classified as a planet. Since the mass of a Brown dwarf is hard to accurately calculate, at the time, the object found was thought to be an old, massive brown dwarf.

EPL: Steven Gerrard to takeover as Manchester United manager
Brendan Rodgers's side began their title defence with a comfortable 3-1 home win over promoted Livingston on Saturday. The Liverpool legend then went on to explain what is different about Rangers this season.

The newly discovered planet was originally detected in 2016 and was considered to be a brown dwarf.

However, recent VLA observations have uncovered that SIMP J01365663+0933473 is too lightweight to be a brown dwarf. The temperature on that planet is about 825 degrees Celsius, which makes it a lot cooler than out Sun.

Zeroing in on this new find could lead to new techniques being developed to help search for alien worlds. One rule of thumb in drawing the distinction is the mass below which fusion of deuterium is not possible - about 13 Jupiter masses. "We think these mechanisms can work not only in brown dwarfs, but also in both gas giant and terrestrial planets", Kao said.

The team believe that they have detected radio emissions from these auroras - which presents a challenge to how we understand the mechanisms for auroras in both brown dwarfs and exoplanets.

"This particular object is exciting because studying its magnetic dynamo mechanisms can give us new insights on how the same type of mechanisms can operate in extrasolar planets". It is a component of the National Radio Astronomy Observatory (NRAO).

Recommended News

  • Five Dead in California 414 Crash

    Five Dead in California 414 Crash

    Luckily, the driver of the parked auto was shopping inside the store when the plane descended on his vehicle, the spokesman said. The parking lot is shared by a CVS pharmacy, a Wells Fargo Bank branch, and a Michaels art-supply store among others.
    Burnley sign Gibson for joint record fee, move in on Hart

    Burnley sign Gibson for joint record fee, move in on Hart

    Ben Gibson has returned to Premier League football after completing his £15million switch from Middlesbrough to Burnley . Gibson spent his youth career at Middlesbrough and made his senior debut for the club in 2011.

    White House Urges China Address ‘Unfair Trading Practices’ Not Tariff Retaliation

    Noticeably absent from the latest list is polysilicon, the main ingredient in solar cells, which the U.S. does export to China. The world's two biggest economies, United States and China, further escalated trade tensions last week.
  • Apple is Killing the App Store Affiliate Program

    Apple is Killing the App Store Affiliate Program

    All other content types such as music, movies, books, and TV remain in the affiliate program, the company wrote in a post . Services revenue jumped 31% to $9.6 billion last quarter, putting the company on track to easily reach its goal.
    WWII ÉIRE sign found on Bray Head following gorse fire

    WWII ÉIRE sign found on Bray Head following gorse fire

    The Defence Forces Air Corps noticed the landmark from above while assisting emergency services as they put the fire out. A Second World War-era sign has been rediscovered after a gorse fire ravaged a hillside on the east coast of Ireland.
    Utility worker killed near Northern California wildfire - 8/5/2018 6:49:49 PM

    Utility worker killed near Northern California wildfire - 8/5/2018 6:49:49 PM

    The fire burned slowly for days before winds suddenly whipped it up last week and drove it furiously through brush and timber. Brown has also sought a presidential disaster declaration for the areas around the Mendocino Complex fires.
  • PTI will Formally Nominate Imran Khan as PM today

    PTI will Formally Nominate Imran Khan as PM today

    Imran Khan-led Pakistan had defeated England by 22 runs in the final to win the Benson & Hedges World Cup on March 25, 1992. All the political parties, as well as the Election Commission of Pakistan (ECP), are working hard to meet the deadline.
    9-Year-Old NC Boy Selling Lemonade Robbed at Gunpoint, Deputies Say

    9-Year-Old NC Boy Selling Lemonade Robbed at Gunpoint, Deputies Say

    Deputies say they located a trail in the woods where a camo hat, a black colored BB handgun and stolen metal tin were recovered. John's Forest development off Weddington Road, and a teenager approached the boy around 3 p.m., the sheriff's office said.
    ‘Guardians of the Galaxy’ Actor Dave Bautista Calls James Gunn Firing ‘Nauseating’

    ‘Guardians of the Galaxy’ Actor Dave Bautista Calls James Gunn Firing ‘Nauseating’

    Last week, the entire cast signed an open letter expressing their admiration for Gunn. Kurt Russell is supporting James Gunn after the director's controversial firing.
  • Helicopter Eela Trailer: Mother-Son Relationship Served FRESH!

    Helicopter Eela Trailer: Mother-Son Relationship Served FRESH!

    Directed by Pradeep Sarkar, Helicopter Eela is an adaptation of Anand Gandhi's Gujarati play Beta Kaagdo. Born on August 5, 1974, as Kajol turns 44, her fans will be treated to something special.
    Tiger Woods and Phil Mickelson targeting $10 million Thanksgiving duel

    Tiger Woods and Phil Mickelson targeting $10 million Thanksgiving duel

    The highly-anticipated showdown between the two legends will take place in November at the Shadow Creek Golf Course. Mickelson told Golf.com in July that he was negotiating with Woods for the winner-take-all bout.
    Sarri admits Chelsea must improve after Man City loss

    Sarri admits Chelsea must improve after Man City loss

    He almost had hat-trick with a back-post volley from Kyle Walker's deep cross, but Caballero made one of many saves to deny him. Manchester City , use the stream provided by ESPN +, the online subscription sports network of the sports media giant ESPN .

We are pleased to provide this opportunity to share information, experiences and observations about what's in the news.
Some of the comments may be reprinted elsewhere in the site or in the newspaper.
Thank you for taking the time to offer your thoughts.