We have it off stars have herculean magnetic fields . We also know that some stars can be rip apart by black holes . So , what hap when you combine the two ?
That ’s what a unexampled study published inThe Astrophysical Journal Lettershas looked at . Picked up by Elizabeth Howell forSeeker , it await at how a star ’s magnetic field might be affected by a supermassive black jam like the one at the shopping center of our galaxy , Sagittarius A * .
wizard can be tidally disrupt by shameful holes when they pass close to them . These event result in gas and other materials being rip from the star , which then rain down on the mordant hole . Some of the fabric can work a flattened accumulation disk around the black pickle .
But no one has really looked at what materialize to the magnetised field of such a genius before . So in this latest survey , led by James Guillochon from the Harvard - Smithsonian Center for Astrophysics , the researchers simulated what would happen .
Such an issue in our galaxy is rare , thought to fall out only once every 10,000 class . However , we can see the watercourse of disrupt adept still feed the black hole . And , last year , a tidal disruption outcome between a star and a pitch-black hole was seen in a galaxy 5 billion light-headed - year from Earth .
“ Half the matter of the star falls onto the black hole and feeds it , and that get a luminous flare of a billion or 10 billion solar luminosities , ” Guillochon told Seeker .
An animation of a star ’s magnetized playing field lines being disrupt by a black hole . James Guillochon
The research worker found that if the mavin just glanced off the supermassive black hole and exist , its magnetised orbit would amplify by a component of 20 . The wizard would continue to orbit the sinister hole though , and repeated encounters would result in the star becoming highly magnetic . If the star get too stuffy and is destroyed , the strength of the charismatic field does n’t interchange .
Indeed , they also suggest a “ dynamo ” procedure could take space , where only one glancing encounter with the black golf hole is needed to massively increase the star ’s magnetism , although they found no evidence for this in their simulation .
“ If a dynamo process act within a partially interrupt hotshot , repeated brush may not be necessitate , which would suggest that many thousands of tidally magnetized stars could lurk near the centers of galaxies , ” the researchers write .
At any rate , it ’s a very interesting expanse of written report . There ’s clearly still much to learn about black hole and how they interact with other objects .
