Late last week we told you about thoseunexplained — but extremely hefty — radio burststhat originated from another galaxy . A numeral of theories have been advise to account for the phenomenon , but there ’s one in exceptional that caught our attention : Blitzars — the net level of a supramassive neutron star .
https://gizmodo.com/mysterious-intergalactic-radio-bursts-detected-676383922
cosmologist have been scratching their heads since first detecting firm radio bursts ( FRBs ) back in 2007 ( Lorimer and Narkevic ) . In just a few msec , each FRB expel as much muscularity as the sun utter in 300,000 age .
Some of the theories that have been proposed let in collide magnetars ( neutron principal with super - strong magnetized fields ) , disappear black holes , gamma irradiation bursts that involve a supernova , or an alone unexampled type of high - vigour astrophysical result . And indeed , it could very well be something all new to skill .
Such is the thinking of astrophysicists Heino Falcke ( Radboud University in Nijmegen , Netherlands ) and Luciano Rezzolla ( Max Planck Institute for Gravitational Physics in Potsdam , Germany ) who have propose a novel type of astronomical phenomenon : The blitzar .
Blitzars begin when an heavy neutron star ( the remnant of a supernova plosion ) resist the urge to turn into a black hole on account of its rapid rotation ; its spin is so riotous that its centrifugal force preclude a collapse .
At this degree it ’s a rather unremarkable , but doomed , pulsar . After a few million years of this , the pulsar ’s hard magnetized field steadily radiates energy away , which eventually causes the spin to slow down . Eventually it knuckle under to the force of graveness and turns into a mordant hole .
But at the precise second of this supernal conversion , an exterior component part of the pulsar ’s magnetised field is cut off from its ( now vanished ) source . This magnetic energy is transubstantiate into a burst of across-the-board spectrum wireless energy . Falcke and Rezzollaliken this case to the snapping of gum elastic bands — an effect that bring on the discovered giant radio heartbeat . At the same time , other type of actinotherapy can not take to the woods the gravitational collapse .
Now , this is all highly speculative , of course . And the cogitation has yet to be peer reexamine . But you could chequer it out for yourself at arXiv : “ Fast radio set burst : the last sign of supramassive neutron stars . ”
Images : NASA .
AstronomyNeutron starsScienceSpace
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